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Revision 1.10

Earth Science Data and Information Systems (ESDIS) Project, Code 423

 

 

Common Metadata Model (UMM-Common)

 


 

 

 

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Prepared by:

 

 

 

 

 

 

 

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Organization

 

 

 

 

 

Reviewed by:

 

 

 

 

 

 

 

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Date

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Organization

 

 

 

 

 

Approved by:

 

 

 

 

 

 

 

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Date

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Concurred by:

 

 

 

 

 

 

 

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[Electronic] Signatures available in B32 Room E148

online at: / https://ops1-cm.ems.eosdis.nasa.gov/cm2/


Preface

This document is under ESDIS Project configuration control. Once this document is approved, ESDIS approved changes are handled in accordance with Class I and Class II change control requirements described in the ESDIS Configuration Management Procedures, and changes to this document shall be made by change bars or by complete revision.

 

Any questions should be addressed to: esdis-esmo-cmo@lists.nasa.gov

ESDIS Configuration Management Office (CMO)
NASA/GSFC

Code 423

Greenbelt, Md. 20771

 

 

 

 

 


Abstract

Originally there was an effort to harmonize a list of standards and specifications that was in use by the NASA Earth Science community. These specifications included the Directory Interchange Format (DIF), Earth Observing System (EOS) Clearing House (ECHO) 10, and International Organization for Standardization (ISO) 19115-2. The result of the harmonization effort was the Unified Metadata Model (UMM). This document - the UMM-Common document - describes the compilation of elements that are shared among the UMM profiles which include: collections, granules, services, visualizations, variables, and documents. Implementers of Earth Science Data and Information System's (ESDIS) CMR, its clients, and data providers should reference this document and the UMM as a guide while implementing the system, its clients, or generating metadata. Links to more information about the standards and specifications used in this document can be found in the introduction’s related document section.

 

 

Keywords:   UMM-Common, UMM-C, UMM-G, UMM-Var, UMM-Vis, UMM-S, Collections, Granules, Services, Visualization, Variables, NASA, Earthdata Search, Tools, EOSDIS, ESDIS, CMR, GCMD

Change History Log

Revision

Effective Date

Description of Changes

V1.0

February 2015

  • Provisional Release.

V1.1

March 2015

  • Added International Organization for Standardization (ISO) 19115-1, Granule Mappings, Lineage Section.
  • Moved Revision History to Lineage section.
  • Split Responsible Party into Responsibility and Party.

V1.2

August 2015

  • Updated from June 2015 Earth Science Data and Information System (ESDIS) Standards Office (ESO) review comments.
  • Changed the Parameter Search tag to Search API.
  • Removed Metadata Standard section.
  • Removed Lineage section.
  • Changed Metadata Dates to Metadata Date.
  • Removed Entry ID.
  • Changed Data Dates to Data Date.
  • ResourceCitation/DOI removed sub-elements.
  • Metadata Association removed Provider ID sub-element.
  • Publication Reference/DOI removed sub-elements.
  • Additional Attributes - added Type and Identifier sub-elements.
  • Temporal Extent - changed the choice of 1..* to choice of 1 for RangeDateTime, SingleDateTime, or PeriodicDateTime.
  • Changed ResourceCitation/Creator and Editor to Creators and Editors.
  • Changed PublicationReference/Author to Authors.

V1.3

July 2016

Updated after MMT alpha and beta testing, and EED System Engineering review.

  • Removed   Sensor element in favor of using Instrument as the generalization of both Instrument and Sensor.  
  • Remapped DIF, ECHO, & ISO:eos   Sensor information from UMM:Sensor   to UMM:Instrument element.
  • Removed Sensor sub-elements from Instrument.
  • Added composedOf relationship to Instrument element to enable modeling complex instruments.
  • Moved Responsibility to UMM-S since it was the only profile   using the element.
  • Moved Party to UMM-S since it was the only profile using the element.
  • Added DIF 9/10   Extended_Metadata mapping for Access Constraints value.
  • Renamed fields in AdditionalAttributes to generalize naming semantics (e.g.   ParameterRangeBegin ->   RangeBegin ).
  • Updated   RelatedURL.
  • Added OnlineResource.
  • Distribution Fee is a string and no longer an amount.
  • TilingIdentificationSystem’s cardinality was changed to be 0..*.
  • Removed delete metadata date.
  • Changed Access Constraints mapping to allow a DIF 9   access constraint   value.
  • Distribution/Size is now a string and not a number.
  • Metadata Date enums changes.
  • Data Dates - changed from required to optional.
  • Changed Parameter to Variable.
  • Moved ResourceCitation/DOI to the UMM-C as a top level element.

V1.4

September 2016

Updated during and after August 2016 ESO review.

  • Fixed grammar and readability issues identified by the ESO review.
  • Added clarifications based on feedback from the ESO review: Metadata Dates, Data Dates
  • Based on Review feedback changed cardinality of RelatedURL
  • Removed Metadata Profile Relationships and Related Documentation section
  • Updated most of the examples and their sources.

V1.5

Sept 2016 - Jan 2017

Updated after the Delivery of version 1.4

  • MetadataDate ISO 19115-2 path was changed to a path that exists.
  • Added Version to MetadataAssociation
  • Removed ECHO 10 mapping of AssociatedBrowseImage because it is no longer used, use AssocaitedBrowseImageURL instead.
  • Added valid values for TilingIdentificationSystemName

V1.6

Feb 2017

  • Fix the cardinality for ContactInformation within DataCenters, ContactPersons, and ContactGroups.

V1.7

Feb 2017

  • Promoted to keep with the same version as UMM-C

V1.8

Feb 2017

  • Added VersionDescription element.

V1.9

Mar - Aug 2017

  • Changed ReleatedURL to include URLContentType categorization of URLs and updated the sub types of GET DATA and GET SERVICES.
  • Added OnlineResource for URLS that didn't need the full RelatedURL sub-elements   (Citations and PublicationReferences).  
  • Changed name of OnlineResource/ApplicationProtocol to OnlineResource/ApplicationProfile.
  • Removed mapping of OnlineResource because it was wrong. The mapping actually comes from the parent element. The OnlineResource element is just a sub-element that is broken out into its own section so that it only needs to be documented once.
  • Changed Sensors to ComposedOf other instruments.
  • Added further details to the description of DOI.

V1.10

Aug 2017 - Present

  • Removed TemporalExtent/TemporalRangeType
  • Added Clarifications to the DOI descriptions.
  • Created enumerations for   the SpatialExtent/VerticalSpatialDomain/Type
  • Created enumerations for TilingIdentificationSystemName.

 


Table of Contents

1 Introduction

1.1 Purpose

1.2 Scope

1.3 Impact

1.4 Copyright Notice

1.5 Feedback

1.6 Document Conventions

1.7 Related Documentation

1.7.1 Applicable Documents

1.7.2 Reference Documents

2 Common Elements

2.1 Metadata Language

2.2 Metadata Date

2.3 Abstract

2.4 Purpose

2.5 Language

2.6 Data Date

2.7 Related URL

2.8 Online Resource

2.9 Quality

2.10 Use Constraints

2.11 Access Constraints

2.12 Science Keywords

2.13 Ancillary Keywords

2.14 Additional Attributes

2.15 Platform

2.15.1 Instrument

2.16 Project

2.17 Temporal Extent

2.18 Spatial Extent

2.19 Tiling Identification System

Appendix A: Tiling Identification System

Appendix B: Abbreviations and Acronyms

List of Figures

Figure 1: Platform and Instrument Relationships

List of Tables

Table 1: Cardinality

Table 2: Applicable Documents

Table 3: Reference Documents

Table 4: Tiling Identification Systems Translation Table.

Table 5: Abbreviations and Acronyms

 

 


 

 

1            Introduction

Earth Observing System Data and Information System (EOSDIS) generates, archives, and distributes enormous amounts of Earth Science data, which in turn are made available to the science community and the public at large. To aid in the search and discovery process, these data must be organized and cataloged. Accurate, complete, and consistent metadata are required for efficient accessibility.   To improve the quality and consistency among its metadata holdings, EOSDIS has developed a model describing metadata that it archives and maintains. This model documents elements that may be represented across various metadata standards and unifies them through core elements useful for discovery. This unified model, aptly named the Unified Metadata Model (UMM), was developed as part of the EOSDIS Metadata Architecture Studies (MAS I and II) conducted between 2012 and 2013. The UMM will be used by the CMR and will drive search and retrieval of metadata cataloged within that system.

 

This document describes common elements used in various UMM reference profiles, which include: collections, granules, services, visualizations, variables, and documents. For each element in this document, the following information is provided:

  • element specification
  • description
  • profile utilization
  • cardinality
  • analysis
  • mapping to existing standards
  • examples
  • future recommendations

 

1.1          Purpose

This document provides information to the National Aeronautics and Space Administration (NASA) Earth Science community. Distribution is unlimited.

 

1.2          Scope

This document is a supplemental document to the Collection Metadata Model.   It holds common elements that are shared between the other metadata models.

 

1.3          Impact

This document outlines common elements used in the Unified Metadata Model that are intended to be backward-compatible with existing NASA earth science metadata implementations. It will impact providers from NASA Distributed Active Archive Centers (DAAC[s]), Common Metadata Repository (CMR) client developers, metadata catalog developers, and users.

 

1.4          Copyright Notice

The contents of this document are not protected by copyright in the United States and may be used without obtaining permission from NASA.

 

1.5          Feedback

Questions, comments and recommendations on the contents of this document should be directed to support@earthdata.nasa.gov.

 

1.6          Document Conventions

This document contains UMM common elements, each of which contains the following components:

 

  • Element Name: Provides the element name.
  • Element Specification: Provides the sub-elements, cardinality of the sub-elements within (), any valid values within <>, applicable comments and notes within {}, and any other major factors that make up the element.  
  • Description: Provides background information on the purpose of the element and its intended use. Furthermore, any information about the element's current usage, recommendations for usage, or unresolved issues is also documented here.   The term "resource" is also used mainly in the description section though it can be used elsewhere and it is meant to denote collections, granules, services, visualizations, variables, documents, etc.
  • Profile Utilization: Lists which profiles use the specific element.
  • Cardinality: Indicates the expectation of counts for this element, summarized in Table 1.
  • Analysis: Gives an analysis of this element where needed and describes any necessary reconciliation.
  • Mapping: Gives Extensible Markup Language (XML) Path Language (XPath) mappings for this element to the elements in other specifications. This can be considered as the "crosswalk" for this element. For a link to more information about XPaths please see the introduction’s reference documents section.
  • Examples: XML snippets from "cross-walked" data standards documenting sample values for the element. Whenever possible, a Uniform Resource Locator (URL) to the specific collection or service used for the metadata snippet, is provided.
  • Recommendations: Provides any future recommendations for the element.

 

Table 1 : Cardinality

Value

Description

1

Exactly one of this element is required

0..N

Optionally, up to and including N numberof this element may be present

0..*

Optionally, any number of this element may be present

1..*

At least one of this element is required, any number may be present

 

1.7          Related Documentation

The latest versions of all documents below should be used. The latest ESDIS Project documents can be obtained from URL: https://ops1-cm.ems.eosdis.nasa.gov .   ESDIS documents have a document number starting with either 423 or 505. Other documents are available for reference in the ESDIS project library website at: http://esdisfmp01.gsfc.nasa.gov/esdis_lib/default.php unless indicated otherwise.

 

1.7.1         Applicable Documents

The following documents are referenced within or are directly applicable, or contain policies or other directive matters that are binding upon the content of this document.

 

Table 2 : Applicable Documents

CMR Life Cycle

https://wiki.earthdata.nasa.gov/display/CMR/CMR+Documents

DIF 9

https://gcmd.nasa.gov/Aboutus/xml/dif/dif.xsd

https://gcmd.nasa.gov/add/difguide/index.html

DIF 10

https://gcmd.gsfc.nasa.gov/Aboutus/xml/dif/dif_v10.2.xsd

https://gcmd.gsfc.nasa.gov/DocumentBuilder/defaultDif10/guide/index.html

ECHO 10

https://wiki.earthdata.nasa.gov/display/echo/Earth+Observing+System+Clearing+House+-+ECHO

https://cdn.earthdata.nasa.gov/echo/

ISO 19115-2 (MENDS)

http://www.iso.org/iso/catalogue_detail.htm?csnumber=39229

https://cdn.earthdata.nasa.gov/iso/

 

1.7.2         Reference Documents

The following documents are not binding on the content but referenced herein and, amplify or clarify the information presented in this document.

 

Table 3 : Reference Documents

Tags

http://en.wikipedia.org/wiki/Tag_%28metadata%29

XPath

XPath is a language for addressing parts of an XML document, designed for use with XSLT.

XLinks

http://en.wikipedia.org/wiki/XLink

 

2            Common Elements

The following subsections ​describe each of the metadata elements that are common among the various UMM profiles.

 

2.1          Metadata Language

Element Specification

MetadataLanguage

 

Description

The language used in the metadata record.

 

Profile Utilization

Collection, Granule

 

Cardinality

0..1

 

Analysis

If not supplied the default language of English will be assumed.

 

Mapping

ISO 19115-2:

/gmi:MI_Metadata/gmd:language/gco:CharacterString

with

/gmi:MI_Metadata/gmd:MD_CharacterSetCode codeList="http://www.isotc211.org/2005/resources/Codelist/gmxCodelists.xml#MD_CharacterSetCode" codeListValue=

 

Examples

ISO 19115-2:

<gmd:language>

          <gco:CharacterString>eng</gco:CharacterString>

</gmd:language>

<gmd:MD_CharacterSetCode codeList="http://www.isotc211.org/2005/resources/Codelist/gmxCodelists.xml#MD_CharacterSetCode" codeListValue="utf8">utf8</gmd:MD_CharacterSetCode>

</gmd:characterSet>

 

Source Data Information:
ISO 19115-2 - Snippet manually generated from schema

 

Recommendations

It is recommended that the value for this element be selected from a list of language codes. The ISO standard for language codes that we will use is ISO 639-2.   For more information please see the ISO 639-2 language code web site at http://www.loc.gov/standards/iso639-2/php/code_list.php.

 

2.2          Metadata Date

Element Specification

MetadataDate/Date     (1)
MetadataDate/Type     (1)     <"CREATE", "UPDATE", "DELETE", "REVIEW">

 

Description

There are three types of dates used in the UMM profiles:

  • Dates that concern the metadata record - called Metadata Dates in this document.
  • Dates that concern the resource itself (collections, granules, services, etc.) - called Data Dates in this document.
  • Dates that describe the time period in which the data set was acquired - called Temporal Extent in this document.

 

Of these three date types this element is comprised of dates for when the metadata was created, last revised, planned for future review, or planned for deletion. For dates related to the actual data or resource, the element Data Date should be used. For dates that describe the acquisition period the Temporal Extent element should be used.

 

Profile Utilization

Collection, Granule

 

Cardinality

0..*

 

Analysis

All metadata dates have been consolidated under this element. They will be typed and will all be represented by the ISO 8601 date and time conventions as part of the reconciliation process.

 

Mapping

DIF 9:

/DIF/DIF_Creation_Date

/DIF/Last_DIF_Revision_Date

/DIF/Future_DIF_Review_Date​

 

DIF 10:  

DIF/Metadata_Dates/Metadata_Creation

DIF/Metadata_Dates/Metadata_Last_Revision

DIF/Metadata_Dates/Metadata_Future_Review

DIF/Metadata_Dates/Metadata_Delete

 

ECHO 10:

/Collection/RevisionDate

 

ISO 19115-2:

/gmi:MI_Metadata/datestamp - This element can be populated, but not used by the UMM. This element does not contain a date type and therefore it is not known what date is represented by this element.

 

/gmi:MI_Metadata/gmd:metadataExtensionInfo/gmd:MD_MetadataExtensionInformation/gmd:extendedElementInformation/gmd:MD_ExtendedElementInformation/gmd:name/gco:CharacterString=<Metadata Create Date, Metadata Update Date, Metadata Future Review Date, Metadata Delete Date>

with

.../gmd:definition/gco:CharacterString=<Create Date, Update Date, Future Review Date, Delete Date>

.../gmd:dataType/gmd:MD_DatatypeCode codeList="" codeListValue="" = Date

.../gmd:domainValue/gco:CharacterString= {the actual date}

 

Examples

DIF 9:

<DIF_Creation_Date>2002-06-25</DIF_Creation_Date>
<Last_DIF_Revision_Date>2015-12-02</Last_DIF_Revision_Date>
<Future_DIF_Review_Date>2005-04-27</Future_DIF_Review_Date>

 

DIF 10:

<Metadata_Dates>
      <Metadata_Creation>2007-02-26</Metadata_Creation>
      <Metadata_Last_Revision>2015-06-11</Metadata_Last_Revision>
      <Metadata_Future_Review>2017-05-01</Metadata_Future_Review>
...
</Metadata_Dates>

 

ECHO 10 Collection:

<RevisionDate>2008-12-02T00:00:00.000Z</RevisionDate>

 

ISO 19115-2:

<gmd:dateStamp>

  <gco:DateTime>2008-12-02T00:00:00Z</gco:DateTime>

</gmd:dateStamp>

...

<gmd:date>

  <gmd:CI_Date>

    <gmd:date>

      <gco:DateTime>2008-12-02T00:00:00.000Z</gco:DateTime>

    </gmd:date>

    <gmd:dateType>

      <gmd:CI_DateTypeCode codeList="http://www.isotc211.org/2005/resources/Codelist/gmxCodelists.xml#CI_DateTypeCode   codeListValue="revision">revision</gmd:CI_DateTypeCode>

    </gmd:dateType>

</gmd:CI_Date>

</gmd:date>

<gmd:date>

  <gmd:CI_Date>

    <gmd:date>

      <gco:DateTime>2008-12-02T00:00:00.000Z</gco:DateTime>

    </gmd:date>

    <gmd:dateType>

      <gmd:CI_DateTypeCode codeList="http://www.isotc211.org/2005/resources/Codelist/gmxCodelists.xml#CI_DateTypeCode"   codeListValue="creation">creation</gmd:CI_DateTypeCode>

    </gmd:dateType>

  </gmd:CI_Date>

</gmd:date>

 

Source Data Information:

DIF 9 - https://cmr.earthdata.nasa.gov/search/concepts/C1214608783-SCIOPS
DIF 10 - https://cmr.earthdata.nasa.gov/search/concepts/C1273348636-GES_DISC

ECHO 10 Collection - https://cmr.earthdata.nasa.gov/search/concepts/C179003030-ORNL_DAAC
ISO 19115-2 - https://cmr.earthdata.nasa.gov/search/concepts/C179003030-ORNL_DAAC.iso

 

2.3          Abstract

Element Specification

Abstract

 

Description

Abstract provides a brief description of the resource the metadata represents. This element allows markdown-formatted text and line breaks within the text are preserved. Additional information on markdown can be found at http://en.wikipedia.org/wiki/Markdown

 

Profile Utilization

Collection, Visualization

 

Cardinality

1

 

Mapping

DIF 9:

/DIF/Summary/Abstract

 

DIF 10:

/DIF/Summary/Abstract

 

ECHO 10 Collection:

/Collection/Description

 

ISO 19115-2:

/gmi:MI_Metadata/gmd:identificationInfo/gmd:MD_DataIdentification/gmd:abstract/gco:CharacterString

 

Examples

DIF 9:

<Summary>
  <Abstract>The Lambert Glacier Basin (LGB) series of five oversnow traverses were conducted from 1989-95. Ten metre depth (10 m) firn temperatures, as a proxy indicator of annual mean surface temperature at a site, were recorded approximately every 30 km along the 2014 km main traverse route from LGB00 (68.6543 S, 61.1201 E) near Mawson Station, to LGB72 (69.9209 S, 76.4933 E) near Davis Station.

10 m depth firn temperatures were recorded manually in field notebooks and the data transferred to spreadsheet files (MS Excel).

Summary data (30 km spatial resolution) can be obtained from CRC Research Note No.09 &amp;Surface Mass Balance and Snow Surface Properties from the Lambert Glacier Basin Traverses 1990-94&amp;.

This work was completed as part of ASAC projects 3 and 2216.

Some of this data have been stored in a very old format.   The majority of files have been updated to current formats, but some files (kaleidograph files in particular) were not able to be modified due to a lack of appropriate software.   However, these files are simply figures, and can be regernerated from the raw data (also provided).

The fields in this dataset are:

Latitutde
Longitude
Height
Cane
Distance
Elevation
Density
Mass Accumulation
Year
Delta Oxygen-18
Grain Size
Ice Crusts
Depth Hoar</Abstract>

</Summary>

 

 

DIF 10:

<Summary>
      <Abstract>The Atmospheric Infrared Sounder (AIRS) is a grating spectrometer (R = 1200) aboard the second Earth Observing System (EOS) polar-orbiting platform, EOS Aqua. In combination with the Advanced Microwave Sounding Unit (AMSU) and the Humidity Sounder for Brazil (HSB), AIRS constitutes an innovative atmospheric sounding group of visible, infrared, and microwave sensors. The AIRS Carbon Dioxide (CO2) Standard Retrieval Product consists of retrieved estimates of CO2, plus estimates of the errors associated with the retrieval. In contrast to AIRX2RET, the horizontal resolution of this standard product is about 110 km (1x1 degree). An AIRS granule has been set as 6 minutes of data, 15 footprints cross track by 22 lines along track.</Abstract>
</Summary>

 

ECHO 10 Collection:

<Description>

  The AMSR-E/Aqua Level-3 daily Snow Water Equivalent (SWE) product includes global

  SWE on Northern and Southern Hemisphere 25 km EASE-Grids, generated by the GSFC algorithm

  using Level-2A TBs.

</Description>

 

ISO 19115-2:

<gmd:abstract>

  <gco:CharacterString>The AMSR-E/Aqua Level-3 daily Snow Water Equivalent (SWE) product

        includes global SWE on Northern and Southern Hemisphere 25 km EASE-Grids, generated

        by the GSFC algorithm using Level-2A TBs. Version Description: Transitional snow

        water equivalent (SWE) corrects for forest attenuation using forest fraction from

        MODIS 1 km IGBP Classes and forest density from MODIS 500 m UMD Vegetation Continuous

        Field; snow density climatology is used to convert snow depth to

        SWE.</gco:CharacterString>

</gmd:abstract>                

 

Source Data Information:

DIF 9 - https://cmr.earthdata.nasa.gov/search/concepts/C1214313574-AU_AADC

DIF 10 - https://cmr.earthdata.nasa.gov/search/concepts/C1243477314-GES_DISC

ECHO 10 Collection - https://cmr.earthdata.nasa.gov/search/concepts/C179014688-NSIDC_ECS

ISO 19115-2 - https://cmr.earthdata.nasa.gov/search/concepts/C179014688-NSIDC_ECS.iso  

 

2.4          Purpose

Element Specification

Purpose

 

Description

This element contains suggested usage, a description for as to why the resource exists, or a description for what the resource can be used. Any limitations on the resource including, but not limited to special restrictions, legal prerequisites, and terms and conditions should be placed into the UseConstraints element and not the Purpose element.

 

Profile Utilization

Collection, Visualization

 

Cardinality

0..1

 

Mapping

DIF 9:

/DIF/Summary/Purpose

 

DIF 10:

/DIF/Summary/Purpose

 

ECHO 10 Collection:

/Collection/SuggestedUsage

 

ISO 19115-2:

/gmi:MI_Metadata/gmd:identificationInfo/gmd:MD_DataIdentification/gmd:purpose/gco:CharacterString

 

Examples

DIF 9:

<Summary>
      ...
      <Purpose>To assess species composition, abundance, distribution and biomass of zooplankton within the Bering and Chukchi Seas , 1985-1989</Purpose>
  </Summary>

 

DIF 10:

  <Summary>
    ...
      <Purpose>To provide VIIRS 375m active fire locations in Near Real-Time in easy to use formats.</Purpose>
  </Summary>

 

ECHO 10 Collection:

<SuggestedUsage>To serve a wide user community by providing composite Landsat images and raw data for urban areas that can be used in interdisciplinary studies of remote sensing and the environment.</SuggestedUsage>

 

ISO 19115-2

<gmd:purpose>

  <gco:CharacterString>To serve a wide user community by providing composite Landsat images and raw data for urban areas that can be used in interdisciplinary studies of remote sensing and the environment.</gco:CharacterString>

</gmd:purpose>

 

Source Data Information:

DIF 9 - https://cmr.earthdata.nasa.gov/search/concepts/C1214595006-SCIOPS
DIF 10 - https://cmr.earthdata.nasa.gov/search/concepts/C1221486837-SCIOPS

ECHO 10 Collection - https://cmr.earthdata.nasa.gov/search/concepts/C179001954-SEDAC
ISO 19115-2 - https://cmr.earthdata.nasa.gov/search/concepts/C179001954-SEDAC.iso

 

2.5          Language

Element Specification

Language

 

Description

The language used in the dataset. Note: This is different from the language of the metadata.

 

Profile Utilization

Collection, Granule, Visualization

 

Cardinality

0..*

 

Analysis

This element is not controlled. If a language is not supplied - English, the default language, will be assumed.

 

Mapping

DIF 9:

/DIF/Data_Set_Language

 

DIF 10:

/DIF/Dataset_Language

 

ISO 19115-2:

/gmi:MI_Metadata/gmd:identificationInfo/gmd:MD_DataIdentification/ gmd:language/gco:CharacterString

with

/gmi:MI_Metadata/gmd:identificationInfo/gmd:MD_DataIdentification/ gmd:MD_CharacterSetCode codeList="http://www.isotc211.org/2005/resources/Codelist/gmxCodelists.xml#MD_CharacterSetCode"

                                                            codeListValue=

 

Examples

DIF 9:

<Data_Set_Language>English</Data_Set_Language>

 

DIF 10:

<Dataset_Language>English</Dataset_Language>

 

ISO 19115-2:

<gmd:language>

          <gco:CharacterString>eng</gco:CharacterString>

</gmd:language>

<gmd:MD_CharacterSetCode codeList=http://www.isotc211.org/2005/resources/Codelist/gmxCodelists.xml#MD_CharacterSetCode codeListValue="utf8">utf8</gmd:MD_CharacterSetCode>

</gmd:characterSet>

 

Source Data Information:

DIF 9 - https://cmr.earthdata.nasa.gov:443/search/concepts/C1214587974-SCIOPS

DIF 10 - https://cmr.earthdata.nasa.gov:443/search/concepts/C1223726607-GES_DISC

ISO 19115-2 - https://cmr.earthdata.nasa.gov:443/search/concepts/C179003030-ORNL_DAAC.iso

 

Recommendations

It is recommended that the value for this element be selected from a list of language codes. The ISO standard for language codes that we will use is ISO 639-2. For more information please see the ISO 639-2 language code web site at http://www.loc.gov/standards/iso639-2/php/code_list.php.

 

2.6          Data Date

Element Specification

DataDate/Date     (1)
DataDate/Type     (1)     <"CREATE", "UPDATE", "DELETE", "REVIEW">

 

Description

There are three types of dates used in the UMM profiles:

  • Dates that concern the metadata record - called Metadata Dates in this document.
  • Dates that concern the resource itself (collections, granules, services, etc.) - called Data Dates in this document.
  • Dates that describe the time period in which the data set was acquired - called Temporal Extent in this document.

 

Of these three date types this element is comprised of dates for when the data or resource itself changed in some way. It does not include the first or third bullets that describe Metadata Dates or Temporal Extent. This element is made of two sub-elements, type and date. The type describes what the date represents: a future review, when the resource was created, last updated, or planned for deletion.   The date describes when the resource had an action performed on it or when an action on it will occur as described by the type element.

 

Profile Utilization

Collection, Granule

 

Cardinality

0..*

 

Analysis

The Creation, Last Revision, Future Review, and Planned Deletion dates exist in various places in the different standards.


All data dates have been consolidated under this element. They will be typed and will all be represented by the ISO 8601 date and time conventions as part of the reconciliation process. In DIF 10 both the metadata and data dates are located under the DIF/Metadata_Dates element. The difference is that the sub-elements of Metadata_Creation, Metadata_Last_Revision, Metadata_Future_Review, and Metadata_Delete describe the metadata dates and the sub-elements of Data_Creation, Data_Last_Revision, Data_Future_Review, Data_Delete describe the resource dates.

 

 

Mapping

DIF 10:

/DIF/Metadata_Dates/Data_Creation

/DIF/Metadata_Dates/Data_Last_Revision

/DIF/Metadata_Dates/Data_Future_Review

/DIF/Metadata_Dates/Data_Delete

 

ECHO 10 Collection:

/Collection/InsertTime

/Collection/LastUpdate

/Collection/DeleteTime

 

ECHO 10 Granule:

/Granule/InsertTime

/Granule/LastUpdate

/Granule/DeleteTime

 

ISO 19115-2:

/gmi:MI_Metadata/gmd:identificationInfo/gmd:MD_DataIdentification/gmd:citation/gmd:CI_Citation/gmd:date/gmd:CI_Date/gmd:date/gco:DateTime

with

/gmi:MI_Metadata/gmd:identificationInfo/gmd:MD_DataIdentification/gmd:citation/gmd:CI_Citation/gmd:date/gmd:CI_Date/gmd:dateType/gmd:CI_DateTypeCode     codeListValue varies.

 

Examples

DIF 10:

  <Metadata_Dates>
      ...
      <Data_Creation>2015-01-01</Data_Creation>
      <Data_Last_Revision>2015-01-01</Data_Last_Revision>
      <Data_Future_Review>2026-05-12</Data_Future_Review>
  </Metadata_Dates>

 

ECHO 10 Collection

<InsertTime>2008-12-02T00:00:00.000Z</InsertTime>

<LastUpdate>2008-12-02T00:00:00.000Z</LastUpdate>

 

ECHO 10 Granule:

<InsertTime>2011-09-07T06:07:24Z</InsertTime>
<LastUpdate>2012-10-31T20:33:38Z</LastUpdate>

 

ISO 19115-2

<gmd:date>

<gmd:CI_Date>

    <gmd:date>

        <gco:DateTime>2008-06-03T00:00:00.000Z</gco:DateTime>

    </gmd:date>

    <gmd:dateType>

        <gmd:CI_DateTypeCode codeList="http://www.isotc211.org/2005/resources/Codelist/gmxCodelists.xml#CI_DateTypeCode" codeListValue="revision">revision</gmd:CI_DateTypeCode>

    </gmd:dateType>

</gmd:CI_Date>

</gmd:date>

<gmd:date>

<gmd:CI_Date>

    <gmd:date>

        <gco:DateTime>2005-06-01T00:00:00.000Z</gco:DateTime>

    </gmd:date>

    <gmd:dateType>

        <gmd:CI_DateTypeCode codeList="http://www.isotc211.org/2005/resources/Codelist/gmxCodelists.xml#CI_DateTypeCode" codeListValue="creation">creation</gmd:CI_DateTypeCode>

    </gmd:dateType>

</gmd:CI_Date>

</gmd:date>

 

Source Data Information:

DIF 10 - https://cmr.earthdata.nasa.gov:443/search/concepts/C1246144386-SCIOPS

ECHO 10 Collection - https://cmr.earthdata.nasa.gov:443/search/concepts/C179003030-ORNL_DAAC

ECHO 10 Granule - https://cmr.earthdata.nasa.gov:443/search/concepts/G1223690990-ASF

ISO 19115-2 - https://cmr.earthdata.nasa.gov:443/search/concepts/C179003030-ORNL_DAAC.iso

 

2.7          Related URL

Element Specification

RelatedURL (0..*)

RelatedURL/URL (1)

RelatedURL/Description (0..1)

RelatedURL/URLContentType (1)     <CollectionURL, PublicationURL, DataCenterURL, DistributionURL, DataContactURL, VisualizationURL>

RelatedURL/Type (1)                                             {Valid values shown below}

RelatedURL/Subtype (0..1)                         {Valid values shown below}

RelatedURL/GetData (0..1)
RelatedURL/GetData/Format (1)     <"ascii", "binary", "GRIB", "BUFR", "HDF4", "HDF5", "HDF-EOS4", "HDF-EOS5", "jpeg", "png", "tiff", "geotiff", "kml", "Not provided">

RelatedURL/GetData/Size (1)

RelatedURL/GetData/Unit (1)               <"KB", "MB", "GB", "TB", "PB">

RelatedURL/GetData/Fees (0..1)

RelatedURL/GetData/Checksum (0..1)

RelatedURL/GetService (0..1)

RelatedURL/GetService/MimeType (1)       {Valid values shown below}

RelatedURL/GetService/Protocol (1)             <"ESI", "FTP", "FTPS", "HTTP", "HTTPS", "OPeNDAP", "WCS", "WMS", "Not provided">

RelatedURL/GetService/FullName (1)
RelatedURL/GetService/DataID (1)

RelatedURL/GetService/DataType (1)

RelatedURL/GetService/URI (0..*)

 

Valid Values for

  • URLContentType
    • Type
      • Subtype

 

  • DistributionURL
    • GET DATA
      •  
      • DATACAST URL
      • EARTHDATA SEARCH
      • ECHO
      • EDG
      • EOSDIS DATA POOL
      • GDS
      • GIOVANNI
      • KML
      • LAADS
      • LANCE
      • LAS
      • MIRADOR
      • MODAPS
      • NOAA CLASS
      • ON-LINE ARCHIVE
      • REVERB
    • GET SERVICE
      •  
      • ACCESS MAP VIEWER
      • ACCESS MOBILE APP
      • ACCESS WEB SERVICE
      • DIF
      • MAP SERVICE
      • NOMADS
      • OPENDAP DATA
      • OPENDAP DATA (DODS)
      • OPENDAP DIRECTORY (DODS)
      • OpenSearch
      • SERF
      • SOFTWARE PACKAGE
      • SSW
      • SUBSETTER
      • THREDDS CATALOG
      • THREDDS DATA
      • THREDDS DIRECTORY
      • WEB COVERAGE SERVICE (WCS)
      • WEB FEATURE SERVICE (WFS)
      • WEB MAP FOR TIME SERIES
      • WEB MAP SERVICE (WMS)
      • WORKFLOW (SERVICE CHAIN)
  • VisualizationURL
    • GET RELATED VISUALIZATION
      •  
      • GIBS
      • GIOVANNI
      • MAP
  • CollectionURL
    • DATA SET LANDING PAGE
      •  
    • DOI
      •  
    • EXTENDED METADATA
      •  
    • PROFESSIONAL HOME PAGE
      •  
    • PROJECT HOME PAGE
      •  
  • PublicationURL
    • VIEW RELATED INFORMATION
      •  
      • ALGORITHM THEORETICAL BASIS DOCUMENT
      • CALIBRATION DATA DOCUMENTATION
      • CASE STUDY
      • DATA QUALITY
      • DATA USAGE
      • DELIVERABLES CHECKLIST
      • GENERAL DOCUMENTATION
      • HOW-TO
      • PI DOCUMENTATION
      • PROCESSING HISTORY
      • PRODUCTION VERSION HISTORY
      • PRODUCT QUALITY ASSESSMENT
      • PRODUCT USAGE
      • PRODUCT HISTORY
      • PUBLICATIONS
      • RADIOMETRIC AND GEOMETRIC CALIBRATION METHODS
      • READ-ME
      • RECIPE
      • REQUIREMENTS AND DESIGN
      • SCIENCE DATA PRODUCT SOFTWARE DOCUMENTATION
      • SCIENCE DATA PRODUCT VALIDATION
      • USER FEEDBACK
      • USER'S GUIDE
  • DataCenterURL
    • HOME PAGE
      •  
  • DataContactURL
    • HOME PAGE
      •  

 

 

 

Valid values for RelatedURL/GetService/MimeType:

  • application/json
  • application/xml
  • application/x-netcdf
  • application/gml+xml
  • application/vnd.google-earch.kml+xml
  • image/gif
  • image/tiff
  • image/bmp
  • text/csv
  • text/xml
  • application/pdf
  • application/x-hdf
  • application/xhdf5
  • application/octet-stream
  • application/vnd.google-earth.kmz
  • image/jpeg
  • image/png
  • image/vnd.collada+xml
  • text/html
  • text/plain

 

Description

This element describes any resource-related URLs that include project home pages, resource information pages, services, related data, archives/servers, metadata extensions, direct links to online software packages, web mapping services, links to images, documents, or other data. When filling out this element URLContentType, Type are required - Description and Subtype are optional. If the URLContentType is "DistributionURL" and the Type is "GET DATA", then the RelatedURL/GetData sub-elements are also filled out. If the URLContentType is "DistributionURL" and the Type is "GET SERVICE", then the RelatedURL/GetService sub-elements are also filled out.  

      RelatedURL - contains URLs to data or services (e.g. Distribution URLs).

      GetData - information about the data (e.g. format, size, units, fees, checksum).

      GetService - contains URIs to data via services and information about the data and service (e.g. mime type, protocol, name, data IDs, data type).

The valid values for Type and Subtype were derived and tailored from the GCMD RelatedURL Type and Subtype elements. We looked at these values, categorized them, removed duplicates, and tailored them while preserving the mapping between the type and sub-type. It is our intent to work with GCMD and get back to a single set of values that can be controlled through the KMS.

 

Note: The Distribution class has now been subsumed into the GetData class.

 

Some use Examples:

I have a DAAC Home page that I would like to put into the metadata:

RelatedURL/URL = http://www.daachomepage.gov

RelatedURL/Description = The DAAC home page

RelatedURL/URLContentType = DataCenterURL

RelatedURL/Type = HOME PAGE

RelatedURL/Subtype =

 

I have a file that I can distribute to whomever is interested:

RelatedURL/URL = http://www.daachomepage.gov/path/downloadable.doc

RelatedURL/Description = some downloadable resource

RelatedURL/URLContentType = DistributionURL

RelatedURL/Type = GET DATA

RelatedURL/Subtype = ON-LINE ARCHIVE
RelatedURL/GetData/Format = application/msword

RelatedURL/GetData/Size = 40

RelatedURL/GetData/Unit = MB

RelatedURL/GetData/Fees = 0

RelatedURL/GetData/Checksum = f5d30a4f2

 

I have a service that I can distribute a sub-setted variable:

RelatedURL/URL = http://oco2.gesdisc.eosdis.nasa.gov/opendap/

RelatedURL/Description = An OPeNDAP page to get data through a service

RelatedURL/URLContentType = DistributionURL

RelatedURL/Type = GET SERVICE

RelatedURL/Subtype = OPENDAP DATA

RelatedURL/GetService/MimeType = application/x-netcdf

RelatedURL/GetService/Protocol = http

RelatedURL/GetService/FullName = OCO2_L1B_Science.7r
RelatedURL/GetService/DataID = OCO2_L1B_Science.7r

RelatedURL/GetService/DataType = nc4

RelatedURL/GetService/URI = http://oco2.gesdisc.eosdis.nasa.gov/opendap/OCO2_L1B_Science.7r/2015/015/oco2_L1bScND_02879a_150115_B7000r_150616093751.h5.nc4?_SoundingGeometry_sounding_latitude[0:1:8363][0:1:7],_SoundingGeometry_sounding_longitude[0:1:8363][0:1:7]

RelatedURL/GetService/URI = http://oco2.gesdisc.eosdis.nasa.gov/opendap/OCO2_L1B_Science.7r/2015/015/oco2_L1bScND_02879a_150115_B7000r_150616093751.h5.nc4?_SoundingGeometry_sounding_latitude[0:8363][0:7],_SoundingGeometry_sounding_longitude[0:8363][0:7]

RelatedURL/GetService/URI = http://oco2.gesdisc.eosdis.nasa.gov/opendap/OCO2_L1B_Science.7r/2015/015/oco2_L1bScND_02879a_150115_B7000r_150616093751.h5.nc4?_SoundingGeometry_sounding_latitude,_SoundingGeometry_sounding_longitude

 

Profile Utilization

Collection, Granule, Service

 

Cardinality

0..*

 

Analysis

Related online resource information is found in both GCMD and ECHO.  

 

ECHO (ECHO10) has OnlineAccessURL, OnlineResource, AssociatedBrowseImages, and AssociatedBrowseImageURLs:

• OnlineAccessURL - stores the online URL(s) for present granules. Those URLs either provide the site where granule data can be obtained or instruct the user on how to obtain the granule data.

• AssociatedBrowseImageURLS - contains URLs to browse imagery.

 

GCMD (DIF 9/10) has RelatedURL and MultimediaSample:

• Related_URL - element provides both documentation and dataset links and they are differentiated by the Related_URL/URLContentType sub-element. This value is hierarchical using type and sub type elements to organize the kinds of URLs associated with collection metadata.

• Multimedia_Sample - allows the author to provide information that will enable the display of a sample image, movie, or sound clip within the DIF 9/10.

 

Mapping

DIF 9:

/DIF/Related_URL

/DIF/Multimedia_Sample

/DIF/Distribution

 

DIF 10:

/DIF/Related_URL

/DIF/Multimedia_Sample

/DIF/Distribution

 

ECHO 10 Collection:

/Collection/OnlineAccessURLs/OnlineAccessURL

/Collection/AssociatedBrowseImageUrls

/Collection/OnlineResources

/Collection/Price

/Collection/DataFormat

 

ECHO 10 Granule:

/Granule/OnlineAccessURLs/OnlineAccessURL

/Granule/OnlineResources/OnlineResource

/Granule/AssociatedBrowseImageUrls

 

ISO 19115-2:

/gmi:MI_Metadata/gmd:distributionInfo/gmd:MD_Distribution/gmd:distributor/gmd:MD_Distributor/gmd:distributorTransferOptions/gmd:MD_DigitalTransferOptions/gmd:onLine/gmd:CI_OnlineResource

and/or

/gmi:MI_Metadata/gmd:identificationInfo/gmd:MD_DataIdentification/gmd:graphicOverview/gmd:MD_BrowseGraphic/gmd:fileName/gmx:FileName src=

 

Examples

DIF 9:

    <Related_URL>

          <URL_Content_Type uuid="6e72d128-7d28-4bd0-bac0-8c5ffd8b31f1">

        <Type>VIEW PROJECT HOME PAGE</Type>

          </URL_Content_Type>

          <URL>http://www.waisdivide.unh.edu/</URL>

    </Related_URL>

    <Related_URL>

          <URL_Content_Type uuid="5ec1bb9d-0efc-4099-9b31-ec791bbd8145">

        <Type>VIEW RELATED INFORMATION</Type>

          </URL_Content_Type>

          <URL>http://www.homepage.montana.edu/~lkbonney/</URL>

          <Description>

                Website for the Priscu Research Group

          </Description>

    </Related_URL>

 

<Multimedia_Sample>

    <URL>http://www.waisdivide.unh.edu/images/sitemap1_large.jpg</URL>

    </Multimedia_Sample>

 

DIF 10:

      <Multimedia_Sample>
              <URL>http://disc.gsfc.nasa.gov/AIRS/images/G1932015.04.19allL1CBrightnessTemperature_K_at10.9microns_map.png</URL>
              <Format>PNG</Format>
              <Caption>The BT derived from an AIRS Level 1C granule for a channel at 10.9 microns.</Caption>
              <Description>Sample image of an AIRICRAD channel converted to brighness temperature</Description>
      </Multimedia_Sample>

      <Related_URL>
              <URL_Content_Type>
                      <Type>GET DATA</Type>
                      <Subtype>ON-LINE ARCHIVE</Subtype>
              </URL_Content_Type>
              <URL>http://airsl1.gesdisc.eosdis.nasa.gov/data/Aqua_AIRS_Level1/AIRICRAD.006/</URL>
              <Description>Access the data via HTTP.</Description>
      </Related_URL>
      <Related_URL>
              <URL_Content_Type>
                      <Type>GET DATA</Type>
                      <Subtype>MIRADOR</Subtype>
              </URL_Content_Type>
              <URL>http://mirador.gsfc.nasa.gov/cgi-bin/mirador/homepageAlt.pl?keyword=AIRICRAD</URL>
              <Description>Mirador is a data search interface that allows searching, browsing, and retrieving of Earth science data archived at NASA GES DISC.</Description>
      </Related_URL>
      <Related_URL>
              <URL_Content_Type>
                      <Type>GET DATA</Type>
                      <Subtype>OPENDAP DATA</Subtype>
              </URL_Content_Type>
              <URL>http://airsl1.gesdisc.eosdis.nasa.gov/opendap/Aqua_AIRS_Level1/AIRICRAD.006/contents.html</URL>
              <Description>Access the data via the OPeNDAP protocol.</Description>
      </Related_URL>
...
      <Related_URL>
              <URL_Content_Type>
                      <Type>GET DATA</Type>
                      <Subtype>EARTHDATA SEARCH</Subtype>
              </URL_Content_Type>
              <URL>https://search.earthdata.nasa.gov/search?q=AIRICRAD+006</URL>
              <Description>Use the Earthdata Search Client (EDSC) to find and retrieve data sets across multiple data centers.</Description>
      </Related_URL>
...

 

ECHO 10 Collection:

<OnlineAccessURLs>

    <OnlineAccessURL>

          <URL>http://sedac.ciesin.columbia.edu/data/set/ulandsat-cities-from-space/data-download</URL>

          <URLDescription>data download page</URLDescription>

    </OnlineAccessURL>

</OnlineAccessURLs>

<OnlineResources>

    <OnlineResource>

          <URL>http://dx.doi.org/10.7927/H4SQ8XB1</URL>

          <Description>data set DOI and homepage</Description>  

          <Type>DOI URL</Type>

    </OnlineResource>

</OnlineResources>

 

<AssociatedBrowseImageUrls>

      <ProviderBrowseUrl>

              <URL>http://sedac.ciesin.columbia.edu/data/set/ulandsat-cities-from-space/maps</URL>

      </ProviderBrowseUrl>

</AssociatedBrowseImageUrls>

 

ECHO 10 Granule:

      <OnlineAccessURLs>
              <OnlineAccessURL>
                  <URL>https://datapool.asf.alaska.edu/GEOTIFF/SS/SS_00107_STD_F0373_tif.zip</URL>
              </OnlineAccessURL>
      </OnlineAccessURLs>
              <Orderable>true</Orderable>
              <Visible>true</Visible>
  <AssociatedBrowseImageUrls>
          <ProviderBrowseUrl>
          <URL>https://datapool.asf.alaska.edu/BROWSE/SS/SS_00107_STD_F0373_BROWSE.jpg</URL>
          </ProviderBrowseUrl>
  </AssociatedBrowseImageUrls>

 

ISO 19115-2:

<gmd:onLine>

          <gmd:CI_OnlineResource>

                <gmd:linkage>

                      <gmd:URL>http://sedac.ciesin.columbia.edu/data/set/ulandsat-cities-from-space/data-download</gmd:URL>

                </gmd:linkage>

                <gmd:applicationProfile gco:nilReason="missing"/>

                <gmd:description>

                      <gco:CharacterString>data download page</gco:CharacterString>

                </gmd:description>

                <gmd:function>

                      <gmd:CI_OnLineFunctionCode codeList="http://www.isotc211.org/2005/resources/Codelist/gmxCodelists.xml#CI_OnLineFunctionCode" codeListValue="download">download</gmd:CI_OnLineFunctionCode>

                </gmd:function>

          </gmd:CI_OnlineResource>

    </gmd:onLine>

    <gmd:onLine>

          <gmd:CI_OnlineResource>

                <gmd:linkage>

                      <gmd:URL>http://dx.doi.org/10.7927/H4SQ8XB1</gmd:URL>

                </gmd:linkage>

                <gmd:applicationProfile gco:nilReason="missing"/>

                <gmd:name>

                      <gco:CharacterString>DOI URL</gco:CharacterString>

                </gmd:name>

                <gmd:description>

                      <gco:CharacterString>data set DOI and homepage</gco:CharacterString>

                </gmd:description>

                <gmd:function>

                      <gmd:CI_OnLineFunctionCode codeList="http://www.isotc211.org/2005/resources/Codelist/gmxCodelists.xml#CI_OnLineFunctionCode" codeListValue=""/>

                </gmd:function>

          </gmd:CI_OnlineResource>

    </gmd:onLine>

...

<gmd:graphicOverview>

  <gmd:MD_BrowseGraphic>

        <gmd:fileName>

              <gmx:FileName src="http://sedac.ciesin.columbia.edu/data/set/ulandsat-cities-from-space/maps"/>

        </gmd:fileName>

        <gmd:fileDescription>

              <gco:CharacterString>File Size:</gco:CharacterString>

        </gmd:fileDescription>

        <gmd:fileType gco:nilReason="missing"/>

  </gmd:MD_BrowseGraphic>

 

Source Data Information:

DIF 9 - https://cmr.earthdata.nasa.gov:443/search/concepts/C1214591041-SCIOPS
DIF 10 - https://cmr.earthdata.nasa.gov:443/search/concepts/C1243477379-GES_DISC

ECHO 10 Collection - https://cmr.earthdata.nasa.gov:443/search/concepts/C179001954-SEDAC
ECHO 10 Granule - https://cmr.earthdata.nasa.gov:443/search/concepts/G1001055217-ASF

ISO 19115-2 - https://cmr.earthdata.nasa.gov:443/search/concepts/C179001954-SEDAC.iso

 

2.8          Online Resource

Element Specification

OnlineResource/   (0..1)
OnlineResource/Linkage   (1)
OnlineResource/Protocol     (0..1)

OnlineResource/ApplicationProfile (0..1)
OnlineResource/Name (1)

OnlineResource/Description   (1)

OnlineResource/Function   (0..1)

 

Description

This element describes any online   resource which   includes citations, publications or references.   This element is analogous to CI_Online_Resource from EN ISO 19115-1:2014 Geographic Information – Metadata – Part 1: Fundamentals .   This element is not a base element but will be included as a sub-element of resource citation and publication reference. Any mapping to the OnlineResource sub-element will be accomplished through the main element, therefore the mapping section is omitted.

 

2.9          Quality

Element Specification

Quality

 

Description

This element permits the author to provide the following information about a resource (collection, granule, service, etc.) described in the metadata: 1) Quality of the resource, and 2) any quality assurance procedures followed in producing the resource. Examples of appropriate element information include: A) succinct description; B) indicators of resource quality or quality flags - both validated, invalidated, or unvalidated; C) recognized or potential problems with quality; D) established quality control mechanisms; and E) established quantitative quality measurements.

 

Profile Utilization

Collection

 

Cardinality

0..1

 

Analysis

This element is found only in GCMD and its value is an uncontrolled block of text describing the quality assessment. Both ISO conventions (19115-1 & 2) have sub-fielded text that more precisely describe the quality assessment of a resource.   Please refer to ISO 19157 (Geographic information – Data quality) for more information about data quality in ISO.

 

Mapping

DIF 9:

/DIF/Quality

 

DIF 10:

/DIF/Quality

 

ISO 19115-2:

/gmi:MI_Metadata/gmd:dataQualityInfo/gmd:DQ_DataQuality/gmd:report/gmd:DQ_QuantitativeAttributeAccuracy/gmd:evaluationMethodDescription/gco:CharacterString

 

Examples

DIF 9:

  <Quality>The dates provided in temporal coverage are approximate only.   Years are correct.

See the referenced paper for full details on steps taken to ensure quality of data.

To assess extraction efficiency for a range of sediment types, four marine sediments were analysed in detail.   Two international certified reference materials (CRMs) and two well-characterised Antarctic sediments were chosen to compare and contrast moderately to strongly contaminated samples (based on total metal digest), with clean samples of similar matrices.   One CRM was an uncontaminated continental shelf mud (MESS-2), and the other a contaminated harbour mud (PACS-2) (NRCC, 2002).   The two Antarctic sediments were collected as part of a regional hierarchical survey (Stark et al., 2003).   One Antarctic sample was from an area of known metal pollution in Brown Bay (BB), which is adjacent to the 'Old' Casey Station waste disposal site (Snape et al., 2001; Stark et al., 2003).   The second Antarctic sample was from a non-impacted control site from O'Brien Bay (OBB), 3 km south of Casey Station and the disposal site (Fig. 1).   The Antarctic samples, OBB and BB, have similar matrices, proportions of mud (less than 63 microns; 19% and 22% respectively) and total organic carbon contents (1.9% and 2.3% respectively). Both MESS and PACS are sieved, homogenised and dried CRMs that have been ground to ~50 microns (NRCC, 2002).   In contrast, OBB and BB were only sieved to less than 2 mm, thereby removing only the very largest particles (less than or equal to 3%).   The Antarctic samples were collected using acid-washed PVC coring tubes.   The samples were kept frozen at -20 degrees C until wet-sieved with a small amount of clean filtered (0.45 microns cellulose nitrate) O'Brien Bay seawater through 2 mm nylon mesh held in a plastic sieve unit.   The sediments were then oven-dried to constant weight at 103 degrees C (Loring and Rantala 1992), and stored in Nalgene HDPE bottles until analysis.</Quality>

 

DIF 10:

<Quality>Nucleic extraction blanks were carried out through amplification steps and sequence analysis quality control measures were followed on data analyzed. Oceanographic instruments were calibrated at SeaBird before the cruise and sample blanks were periodically run for chlorophyll and nutrient analyses.</Quality>

 

ISO 19115-2:

<gmd:dataQualityInfo>

          <gmd:DQ_DataQuality>

                <gmd:scope>

                      <gmd:DQ_Scope>

                            <gmd:level>

                                  <gmd:MD_ScopeCode codeList="http://www.isotc211.org/2005/resources/Codelist/gmxCodelists.xml#MD_ScopeCode"

                                                                      codeListValue="series">series</gmd:MD_ScopeCode>

                            </gmd:level>

                      </gmd:DQ_Scope>

                </gmd:scope>

                <gmd:report>

                      <gmd:DQ_AccuracyOfATimeMeasurement>

                            <gmd:measureIdentification>

                                  <gmd:MD_Identifier>

                                        <gmd:code>

                                              <gco:CharacterString>PrecisionOfSeconds</gco:CharacterString>

                                        </gmd:code>

                                  </gmd:MD_Identifier>

                            </gmd:measureIdentification>

                            <gmd:result>

                                  <gmd:DQ_QuantitativeResult>

                                        <gmd:valueUnit/>

                                        <gmd:value>

                                              <gco:Record xsi:type="gco:Real_PropertyType">

                                                    <gco:Real>1</gco:Real>

                                              </gco:Record>

                                        </gmd:value>

                                  </gmd:DQ_QuantitativeResult>

                            </gmd:result>

                      </gmd:DQ_AccuracyOfATimeMeasurement>

                </gmd:report>

                <gmd:lineage>

                      <gmd:LI_Lineage>

                            <gmd:processStep>

                                  <gmi:LE_ProcessStep>

                                        <gmd:description gco:nilReason="unknown"/>

                                        <gmd:processor>

                                              <gmd:CI_ResponsibleParty>

                                                    <gmd:organisationName>

                                                          <gco:CharacterString>SEDAC</gco:CharacterString>

                                                    </gmd:organisationName>

                                                    <gmd:role>

                                                          <gmd:CI_RoleCode codeList="http://www.isotc211.org/2005/resources/Codelist/gmxCodelists.xml#CI_RoleCode"

                                                                                            codeListValue="processor">processor</gmd:CI_RoleCode>

                                                    </gmd:role>

                                              </gmd:CI_ResponsibleParty>

                                        </gmd:processor>

                                  </gmi:LE_ProcessStep>

                            </gmd:processStep>

                      </gmd:LI_Lineage>

                </gmd:lineage>

          </gmd:DQ_DataQuality>

    </gmd:dataQualityInfo>

 

Source Data Information:

DIF 9 - https://cmr.earthdata.nasa.gov/search/concepts/C1214305813-AU_AADC

DIF 10 - https://cmr.earthdata.nasa.gov/search/concepts/C1232343424-SCIOPS

ISO 19115-2 - https://cmr.earthdata.nasa.gov/search/concepts/C179001954-SEDAC.iso

 

Recommendations

The CMR team recommends that a future focus group explore the possibility of enhancing the element to include controlled vocabulary and structured sub-elements. This would align the Quality element more with ISO19157 (Geographic information – Data quality).   We would also potentially be incorporating recommendations emerging from the BEDI/CDI metadata quality efforts.   It is also recommended that the ISO 19115-1 translation be changed into a descriptive report just as in the example within the mdq:DQ_DomainConsistency element.

 

2.10      Use Constraints

Element Specification

UseConstraints

 

Description

The UseConstraints element is designed to protect privacy and/or intellectual property by allowing the author to specify how the item (collection, granule, service, visualization, etc.) may or may not be used after access is granted. This includes any special restrictions, legal prerequisites, terms and conditions, and/or limitations on using the item. Providers may request acknowledgement of the item from users and claim no responsibility for quality and completeness. Note:   UseConstraints describes how the item may be used once access has been granted; and is distinct from AccessConstraints, which refers to any constraints in accessing the item.

 

Profile Utilization

Collection, Granule, Visualization

 

Cardinality

0..1

 

Analysis

This element's value is an uncontrolled block of text describing the use constraint.

 

Mapping

DIF 9:

/DIF/Use_Constraints

 

DIF 10:

/DIF/Use_Constraints

 

ISO 19115-2:

/gmd:MD_Metadata/gmd:identificationInfo/gmd:MD_DataIdentification/gmd:resourceConstraints/gmd:MD_LegalConstraints/gmd:useLimitation/gco:CharacterString

 

Examples

DIF 9:

<Use_Constraints>This data set conforms to the PICCCBY Attribution License
(http://creativecommons.org/licenses/by/3.0/).

Please follow instructions listed in the citation reference provided at http://data.aad.gov.au/aadc/metadata/citation.cfm?entry_id=ASAC_2201_HCL_0.5 when using these data.</Use_Constraints>

 

DIF 10:

<Use_Constraints>The distribution of this data set is funded by NASA's Earth Science Enterprise (ESE). The data are not copyrighted; however, we request that when you publish data or results using these data, please acknowledge as follows:
                                                                                             
The data used in this study were acquired as part of the Tropical Rainfall Measuring Mission (TRMM). The algorithms were developed by the TRMM Science Team. The data were processed by the TRMM Science Data and Information System (TSDIS) and the TRMM Office; they are archived and distributed by the Goddard Earth Sciences Data and Information Services Center. TRMM is an international project jointly sponsored by the Japan National Space Development Agency (NASDA) and the U.S. National Aeronautics and Space Administration (NASA) Office of Earth Sciences.
                                                                                             
Please send a copy of your publication to Help Desk, Goddard Earth Sciences Data and Information Services Center, Code 610.2, NASA GSFC, Greenbelt, MD 20771 or email the reference of your publication to gsfc-help-disc@lists.nasa.gov.</Use_Constraints>

 

ISO 19115-2:

          <gmd:resourceConstraints>
              <gmd:MD_LegalConstraints>
                  <gmd:useLimitation>
                      <gco:CharacterString>The distribution of this data set is funded by NASA's Earth Science Enterprise (ESE). The data are not copyrighted; however, we request that when you publish data or results using these data, please acknowledge as follows:

The data used in this study were acquired as part of the Tropical Rainfall Measuring Mission (TRMM). The algorithms were developed by the TRMM Science Team. The data were processed by the TRMM Science Data and Information System (TSDIS) and the TRMM Office; they are archived and distributed by the Goddard Earth Sciences Data and Information Services Center. TRMM is an international project jointly sponsored by the Japan National Space Development Agency (NASDA) and the U.S. National Aeronautics and Space Administration (NASA) Office of Earth Sciences.

Please send a copy of your publication to Help Desk, Goddard Earth Sciences Data and Information Services Center, Code 610.2, NASA GSFC, Greenbelt, MD 20771 or email the reference of your publication to gsfc-help-disc@lists.nasa.gov.</gco:CharacterString>
                  </gmd:useLimitation>
                    ...
              </gmd:MD_LegalConstraints>
          </gmd:resourceConstraints>

 

Source Data Information:

DIF 9 - https://cmr.earthdata.nasa.gov/search/concepts/C1214305813-AU_AADC
DIF 10 - https://cmr.earthdata.nasa.gov/search/concepts/C1282032564-GES_DISC

ISO 19115-2 - https://cmr.earthdata.nasa.gov/search/concepts/C1282032564-GES_DISC.iso

 

2.11      Access Constraints

Element Specification

AccessConstraints/Description     (1)
AccessConstraints/Value     (0..1)

 

Description

The Description sub-element allows the author to provide information concerning accessing constraints. This includes any special restrictions, legal prerequisites, limitations and/or warnings on obtaining the data. Examples of values include: Public, In-house, Limited, and None. The Value sub-element is used for special access control list (ACL) rules ( http://en.wikipedia.org/wiki/Access_control_list ) - for example, to hide metadata when it isn't ready for public consumption.

 

Profile Utilization

Collection, Granule

 

Cardinality

0..1

 

Analysis

Providers use the AccessConstraint/Value element to specify various restriction levels with ACLs. For example: A provider might specify a service Level ACL that hides all items (collections for this example) with a value element set to '15.0'. There is no controlled mapping for what the values represent.   ECHO has the exact same feature and there are many ACLs built in off of these types of rules.

 

Mapping

DIF 9:

/DIF/Access_Constraints

/DIF/Extended_Metadata/Metadata

 

DIF 10:

/DIF/Access_Constraints

/DIF/Extended_Metadata/Metadata

 

ECHO 10 Collection:

/Collection/RestrictionComment

/Collection/RestrictionFlag

 

ECHO 10 Granule:

/Granule/RestrictionComment

/Granule/RestrictionFlag

 

ISO 19115-2:

/gmi:MI_Metadata/gmd:identificationInfo/gmd:MD_DataIdentification/gmd:resourceConstraints/gmd:MD_LegalConstraints/gmd:useLimitation/gco:CharacterString (prefix: 'Restriction Comment:' )

/gmi:MI_Metadata/gmd:identificationInfo/gmd:MD_DataIdentification/gmd:resourceConstraints/gmd:MD_LegalConstraints/gmd:otherConstraints/gco:CharacterString (prefix: 'Restriction Flag:' )

 

Examples

DIF 9:

<Access_Constraints>None</Access_Constraints>

 

<Extended_Metadata>
  <Metadata>
      <Group>gov.nasa.earthdata.cmr</Group>
      <Name>Restriction</Name>
      <Value>[0 or 1+]</Value>
  </Metadata>
</Extended_Metadata>

 

DIF 10:

<Access_Constraints>None.   The paper is open access.</Access_Constraints>

 

<Extended_Metadata>
  <Metadata>
      <Group>gov.nasa.earthdata.cmr</Group>
      <Name>Restriction</Name>
      <Value>[0 or 1+]</Value>
  </Metadata>
</Extended_Metadata>

 

ECHO 10 Collection:

<RestrictionFlag>0</RestrictionFlag>

<RestrictionComment>None</RestrictionComment>

 

ECHO 10 Granule:

<RestrictionFlag>0</RestrictionFlag>

<RestrictionComment>

          This product has full public access

  </RestrictionComment>

 

ISO 19115-2

<gmd:resourceConstraints>

      <gmd:MD_LegalConstraints>

            <gmd:useLimitation>

                  <gco:CharacterString>Restriction Comment: There are no fees for training, materials, rubrics, and assessments. Each

    participant must complete the online form   to access materials.</gco:CharacterString>

            </gmd:useLimitation>

            <gmd:otherConstraints>

                  <gco:CharacterString>Restriction Flag:0</gco:CharacterString>

            </gmd:otherConstraints>

      </gmd:MD_LegalConstraints>

</gmd:resourceConstraints>

 

Source Data Information:

DIF 9 - https://cmr.earthdata.nasa.gov/search/concepts/C1214608509-SCIOPS - The Extended_Metadata section is manually created.
DIF 10 - https://cmr.earthdata.nasa.gov/search/concepts/C1289077312-SCIOPS - The Extended_Metadata section is manually created.
ECHO 10 Collection - Example manually created from the ECHO 10 schema.

ECHO 10 Granule - Example manually created from the ECHO 10 schema.

ISO 19115-2 - Example manually generated from schema and SERF record

 

Recommendations
Metadata that is meant for EMS use only should carry a restricted flag that allows only data provider and EMS to use it.

 

2.12      Science Keywords

Element Specification

ScienceKeywords/Category     (1)
ScienceKeywords/Topic     (1)
ScienceKeywords/Term     (1)
ScienceKeywords/VariableLevel1     (0..1)
ScienceKeywords/VariableLevel2     (0..1)
ScienceKeywords/VariableLevel3     (0..1)
ScienceKeywords/DetailedVariable     (0..1)

 

Description

This element enables specification of Earth Science keywords. All of the sub-elements except for DetailedVariable are controlled and use the GCMD Science Keyword vocabulary.   The vocabulary is managed by the Keyword Management System (KMS) and it can be found at this location: http://gcmdservices.gsfc.nasa.gov/static/kms/sciencekeywords/sciencekeywords.csv. The DetailedVariable is an uncontrolled free text element that allows the metadata author to include another keyword to more fully describe the data.

 

Profile Utilization

Collection, Service

 

Cardinality

1..*

 

Mapping

DIF 9:

/DIF/Parameters/

 

DIF 10:

/DIF/Science_Keywords/

 

ECHO 10 Collection:

/Collection/ScienceKeywords/ScienceKeyword/

 

ISO 19115-2:

/gmi:MI_Metadata/gmd:identificationInfo/gmd:MD_DataIdentification/gmd:descriptiveKeywords/gmd:MD_Keywords/gmd:keyword/gco:CharacterString

with

/gmi:MI_Metadata/gmd:identificationInfo/gmd:MD_DataIdentification/gmd:descriptiveKeywords/gmd:MD_Keywords/gmd:keyword/gmd:type/MD_KeywordTypeCode[@codeListValue="theme"]

 

Examples

DIF 9:

  <Parameters>
      <Category>EARTH SCIENCE</Category>
      <Topic>BIOSPHERE</Topic>
      <Term>ECOLOGICAL DYNAMICS</Term>
      <Variable_Level_1>ECOTOXICOLOGY</Variable_Level_1>
      <Variable_Level_2>SPECIES BIOACCUMULATION</Variable_Level_2>
  </Parameters>

 

DIF 10:

<Science_Keywords>
      <Category>EARTH SCIENCE</Category>
      <Topic>ATMOSPHERE</Topic>
      <Term>ATMOSPHERIC CHEMISTRY</Term>
      <Variable_Level_1>CARBON AND HYDROCARBON COMPOUNDS</Variable_Level_1>
      <Variable_Level_2>CARBON DIOXIDE</Variable_Level_2>
</Science_Keywords>

 

ECHO 10 Collection:

<ScienceKeywords>

  <ScienceKeyword>

    <CategoryKeyword>EARTH SCIENCE</CategoryKeyword>

    <TopicKeyword>HYDROSPHERE</TopicKeyword>

    <TermKeyword>SURFACE WATER</TermKeyword>

    <VariableLevel1Keyword>

      <Value>DISCHARGE/FLOW</Value>

    </VariableLevel1Keyword>

  </ScienceKeyword>

  <ScienceKeyword>

    <CategoryKeyword>EARTH SCIENCE</CategoryKeyword>

    <TopicKeyword>HYDROSPHERE</TopicKeyword>

    <TermKeyword>SURFACE WATER</TermKeyword>

    <VariableLevel1Keyword>

      <Value>STAGE HEIGHT</Value>

    </VariableLevel1Keyword>

  </ScienceKeyword>

</ScienceKeywords>

 

ISO 19115-2:

<gmd:descriptiveKeywords>

                      <gmd:MD_Keywords>

                            <gmd:keyword>

                                  <gco:CharacterString>EARTH SCIENCE&gt;HYDROSPHERE&gt;SURFACE WATER&gt;DISCHARGE/FLOW&gt;NONE&gt;NONE&gt;NONE</gco:CharacterString>

                            </gmd:keyword>

                            <gmd:keyword>

                                  <gco:CharacterString>EARTH SCIENCE&gt;HYDROSPHERE&gt;SURFACE WATER&gt;STAGE HEIGHT&gt;NONE&gt;NONE&gt;NONE</gco:CharacterString>

                            </gmd:keyword>

                            <gmd:type>

                                  <gmd:MD_KeywordTypeCode codeList="http://www.isotc211.org/2005/resources/Codelist/gmxCodelists.xml#MD_KeywordTypeCode"

                                                                                  codeListValue="theme">theme</gmd:MD_KeywordTypeCode>

                            </gmd:type>

                            <gmd:thesaurusName>

                                  <gmd:CI_Citation>

                                        <gmd:title>

                                              <gco:CharacterString>NASA/GCMD Science Keywords</gco:CharacterString>

                                        </gmd:title>

                                              ...                                        

                                </gmd:CI_Citation>

                            </gmd:thesaurusName>

                      </gmd:MD_Keywords>

                </gmd:descriptiveKeywords>

 

Source Data Information:

DIF 9 - https://cmr.earthdata.nasa.gov/search/concepts/C1214305884-AU_AADC
DIF 10 - https://cmr.earthdata.nasa.gov/search/concepts/C1223726607-GES_DISC

ECHO 10 Collection - https://cmr.earthdata.nasa.gov/search/concepts/C179003030-ORNL_DAAC
ISO 19115-2 - https://cmr.earthdata.nasa.gov/search/concepts/C179003030-ORNL_DAAC.iso

 

2.13      Ancillary Keywords

Element Specification

AncillaryKeywords

 

Description

This element allows authors to provide words or phrases to further describe the data and therefore its vocabulary is not controlled.

 

Profile Utilization

Collection, Service

 

Cardinality

0..*

 

Mapping

DIF 9:

/DIF/Keyword

 

DIF 10:

/DIF/Ancillary_Keyword

 

ISO 19115-2:

/gmi:MI_Metadata/gmd:identificationInfo/gmd:MD_DataIdentification/gmd:descriptiveKeywords/gmd:MD_Keywords/gmd:keyword/gco:CharacterString

 

Examples

DIF 9:

  <Keyword>ANTARCTICA</Keyword>
  <Keyword>ORGANOCHLORINES</Keyword>
  <Keyword>SEABIRDS</Keyword>
  <Keyword>fulmar</Keyword>
  <Keyword>Adelie penguin</Keyword>
  <Keyword>preenoil</Keyword>
  <Keyword>polychlorinated biphenyls</Keyword>
  <Keyword>hexachlorobenzene</Keyword>
  <Keyword>dieldrin</Keyword>
  <Keyword>PCB</Keyword>
  <Keyword>HCB</Keyword>
  <Keyword>DDE</Keyword>
  <Keyword>Pygoscelis adeliae</Keyword>
  <Keyword>Fulmarus glacialoides</Keyword>
  <Keyword>morphometrics</Keyword>

 

DIF 10

<Ancillary_Keyword>RADIANCE</Ancillary_Keyword>
<Ancillary_Keyword>INFRARED</Ancillary_Keyword>
<Ancillary_Keyword>CALIBRATED</Ancillary_Keyword>
<Ancillary_Keyword>GEOLOCATED</Ancillary_Keyword>
<Ancillary_Keyword>EOSDIS</Ancillary_Keyword>

 

ISO 19115-2

<gmd:descriptiveKeywords>

    <gmd:MD_Keywords>

          <gmd:keyword>

                <gco:CharacterString> RADIANCE </gco:CharacterString>

          </gmd:keyword>

          <gmd:keyword>

                <gco:CharacterString> INFRARED </gco:CharacterString>

          </gmd:keyword>

          <gmd:keyword>

                <gco:CharacterString> CALIBRATED </gco:CharacterString>

          </gmd:keyword>

          ...

    </gmd:MD_Keywords>

</gmd:descriptiveKeywords>

 

Source Data Information:

DIF 9 - https://cmr.earthdata.nasa.gov/search/concepts/C1214305884-AU_AADC

DIF 10 - https://cmr.earthdata.nasa.gov/search/concepts/C1243477316-GES_DISC

ISO 19115-2 - Example manually generated from schema and the DIF 10 record.

 

2.14      Additional Attributes

Element Specification

AdditionalAttribute/Name     (1)

AdditionalAttribute/Type     (0..1)

AdditionalAttribute/Identifier     (0..1)
AdditionalAttribute/DataType     (1)
AdditionalAttribute/Description     (1)
AdditionalAttribute/MeasurementResolution     (0..1)
AdditionalAttribute/RangeBegin     (0..1)
AdditionalAttribute/RangeEnd     (0..1)
AdditionalAttribute/UnitsOfMeasure     (0..1)
AdditionalAttribute/ValueAccuracy     (0..1)
AdditionalAttribute/ValueAccuracyExplanation     (0..1)
AdditionalAttribute/Value     (0..1)
AdditionalAttribute/Group     (0..1)
AdditionalAttribute/UpdateDate     (0..1)

 

Description

This entity stores the data's distinctive attributes (i.e. attributes used to describe the unique characteristics of the resource which extend beyond those defined in this mapping).

 

Profile Utilization

Collection, Granule

 

Cardinality

0..*

 

Analysis

ECHO uses AdditionalAttributes to describe the data represented in each granule within a collection. These values are important search criteria for the granules. Example attributes include values for cloud cover, MODIS Tile grid coordinates, and elevation information. All additional attribute definitions are included in the collection metadata. A collection may also specify a value, to be understood as the value for all granules. Granules reference defined additional attributes and supply a value that is associated to that granule. Granules may not define a new additional attribute that is not defined by the collection.     In DIF 9 and SERF there is no AdditionalAttributes element similar to ECHO.   Recognizing there is no equivalence between Extended Metadata, that does not have a well defined structure, and   additional attributes which does, there still needs to be a way to translate the data from one standard to DIF 9 or SERF.   The proposal is to use ExtendedMetadata to store this kind of information in key value pairs.     DIF 10 has additional attributes and is directly mappable.   If the additional attribute type is known it can be mapped to the correct section of ISO.   Currently additional attributes are mapped to several sections within ISO depending if the attribute is geographical, describes coverage, describes data quality, describes acquisition, or maps to a keyword.

 

Mapping

DIF 9:

/DIF/ExtendedMetadata/Metadata/

 

DIF 10:

/DIF/Additional_Attributes/

 

ECHO 10 Collection:

/Collection/AdditionalAttributes/AdditionalAttribute/

 

ECHO 10 Granule:

/Granule/AdditionalAttributes/AdditionalAttribute/

 

ISO 19115-2:

/gmi:MI_Metadata/gmd:identificationInfo/gmd:MD_DataIdentification/gmd:descriptiveKeywords/gmd:MD_Keywords/gmd:keyword/gco:CharacterString

or

/gmi:MI_Metadata/gmd:identificationInfo/gmd:MD_DataIdentification/gmd:extent/gmd:EX_Extent/gmd:geographicElement/gmd:EX_GeographicDescription/gmd:geographicIdentifier/gmd:MD_Identifier

or

/gmi:MI_Metadata/gmd:contentInfo/gmd:MD_CoverageDescription/gmd:dimension/gmd:MD_Band/gmd:otherProperty/gco:Record/eos:AdditionalAttributes/eos:AdditionalAttribute

or

/gmi:MI_Metadata/gmd:dataQualityInfo/gmd:DQ_DataQuality/gmd:report/gmd:DQ_QuantitativeAttributeAccuracy/gmd:result/gmd:DQ_QuantitativeResult/gmd:value/gco:Record/eos:AdditionalAttributes/eos:AdditionalAttribute

or

/gmi:MI_Metadata/gmi:acquisitionInformation/gmi:MI_AcquisitionInformation/gmi:instrument/eos:EOS_Instrument/eos:otherProperty/gco:Record/eos:AdditionalAttributes/eos:AdditionalAttribute

or

/gmi:MI_Metadata/gmi:acquisitionInformation/gmi:MI_AcquisitionInformation/gmi:platform/eos:EOS_Platform/eos:otherProperty/gco:Record/eos:AdditionalAttributes/eos:AdditionalAttribute

 

Examples

DIF 9:

<Extended_Metadata>

          ...

          <Metadata>

                <Group>EMS</Group>

                <Name>EMS_Product</Name>

                <Value>MOD09Q1N</Value>

          </Metadata>

          <Metadata>

              <Group>gov.nasa.gsfc.gcmd</Group>

              <Name>metadata.extraction_date</Name>

              <Value>2014-11-05 10:00:22</Value>

          </Metadata>

          <Metadata>

              <Group>gov.nasa.gsfc.gcmd</Group>

              <Name>metadata.keyword_version</Name>

              <Value>8.0</Value>

          </Metadata>

    </Extended_Metadata>

 

DIF 10:

<Additional_Attributes>

  <Name>SuccessCloudPhaseRtrPct_IR</Name>

  <DataType>FLOAT</DataType>

  <Description>None</Description>

</Additional_Attributes>

 

ECHO 10 Collection:

<AdditionalAttribute>

  <Name>SuccessCloudPhaseRtrPct_IR</Name>

  <DataType>FLOAT</DataType>

  <Description>None</Description>

</AdditionalAttribute>

 

ECHO 10 Granule:

<AdditionalAttributes>

  <AdditionalAttribute>

      <Name>AIRSAR_FLIGHT_LINE</Name>

      <Values>

          <Value>mammoth_138.90021</Value>

      </Values>

  </AdditionalAttribute>

</AdditionalAttributes>

 

ISO 19115-2

<eos:AdditionalAttribute>

    <eos:reference>

          <eos:EOS_AdditionalAttributeDescription>

                <eos:type>

                      <eos:EOS_AdditionalAttributeTypeCode

                            codeList=http://earthdata.nasa.gov/metadata/resources/Codelists.xml#EOS_AdditionalAttributeTypeCode"

                            codeListValue="contentInformation"

                            >contentInformation</eos:EOS_AdditionalAttributeTypeCode>

                </eos:type>

                <eos:name>

                      <gco:CharacterString>SuccessCloudPhaseRtrPct_IR</gco:CharacterString>

                </eos:name>

                <eos:description>

                      <gco:CharacterString>None</gco:CharacterString>

                </eos:description>

                <eos:dataType>

                      <eos:EOS_AdditionalAttributeDataTypeCode

                            codeList="http://earthdata.nasa.gov/metadata/resources/Codelists.xml#EOS_AdditionalAttributeDataTypeCode"

                            codeListValue="FLOAT">FLOAT</eos:EOS_AdditionalAttributeDataTypeCode>

                </eos:dataType>

          </eos:EOS_AdditionalAttributeDescription>

    </eos:reference>

</eos:AdditionalAttribute>

 

Source Data Information:

DIF 9 - http://gcmd.gsfc.nasa.gov/mws/dif/MOD09Q1N_C5_NRT
DIF 10 - Example manually generated based on schema and ECHO data.

ECHO 10 Collection - https://api.echo.nasa.gov:443/catalog-rest/echo_catalog/datasets/C90762185-LAADS
ECHO 10 Granule – https://api.echo.nasa.gov/catalog-rest/echo_catalog/granules/G181127451-ASF

ISO 19115-2 - https://api.echo.nasa.gov:443/catalog-rest/echo_catalog/datasets/C90762185-LAADS.iso

 

2.15      Platform

Element Specification

Platform (1..*)
Platform/Type     (0..1)
Platform/ShortName     (1)
Platform/LongName     (0..1)
Platform/Characteristics     (0..*)
Platform/Characteristics/Name     (1)
Platform/Characteristics/Description     (1)
Platform/Characteristics/DataType     (1)
Platform/Characteristics/Unit     (1)
Platform/Characteristics/Value     (1)
Platform/Instrument     (1..*)     {See Instrument for full specification}

 

Description

This element describes the relevant platforms used to acquire the data. Platform types are controlled and since there are to many valid values to list here the following URL is provided:   http://gcmdservices.gsfc.nasa.gov/static/kms/platforms/platforms.csv.   The types of platforms covered include but are not limited to Aircraft, Earth Observation Satellites, In Situ Land-based Platforms, etc.

 

Profile Utilization

Collection, Granule

 

Cardinality

0..*

 

Analysis

This class is found in ECHO, GCMD. It is controlled within GCMD, but not within ECHO. ECHO and GCMD DIF 10's Platform includes the following attributes:   ShortName, LongName, Type, Characteristics, and Instruments.   GCMD's DIF 9 Platform does not nest the Instrument attributes or include a Characteristics attribute. Some of the characteristics information is captured in the GCMD DIF 9 ancillary platform metadata document.

 

The ISO 19115-2 MI_Platform class was extended to EOS_Platform in order to facilitate the addition of ECHO additional attributes and sensors to the platform descriptions.

 

Mapping

DIF 9:

/DIF/Source_Name

 

DIF 10:

/DIF/Platform/

 

ECHO 10 Collection:

/Collection/Platforms/Platform/

 

ECHO 10 Granule:

/Granule/Platforms/Platform/

 

ISO 19115-2:

/gmi:MI_Metadata/gmi:acquisitionInformation/gmi:MI_AcquisitionInformation/gmi:platform/eos:EOS_Platform/

and

/gmi:MI_Metadata/gmd:identificationInfo/gmd:MD_DataIdentification/gmd:descriptiveKeywords/gmd:MD_Keywords/gmd:keyword/gco:CharacterString

with

/gmi:MI_Metadata/gmd:identificationInfo/gmd:MD_DataIdentification/gmd:descriptiveKeywords/gmd:MD_Keywords/gmd:keyword/gmd:type/MD_KeywordTypeCode[@codeListValue="platform"]

 

Examples

DIF 9:

<Source_Name uuid="e66a90c4-3a5c-4e52-b039-bc93857642bf">

    <Short_Name>GPS</Short_Name>

    <Long_Name>Global Positioning System Satellites</Long_Name>

</Source_Name>

 

DIF 10:

  <Platform>
      <Type>Earth Observation Satellites</Type>
      <Short_Name>AQUA</Short_Name>
      <Long_Name>Earth Observing System, AQUA</Long_Name>
      <Characteristics>
          <Name>EquatorCrossingTime</Name>
          <Description>Local time of the equator crossing and direction (ascending or descending </Description>
          <DataType>Time/direction (ascending)</DataType>
          <Unit>Local Mean Time</Unit>
          <Value>3:30, ascending</Value>
      </Characteristics>
      <Instrument>
          <Short_Name>MODIS</Short_Name>
          <Long_Name>Moderate-Resolution Imaging Spectroradiometer</Long_Name>
          <Technique>Imaging Spectroradiometry</Technique>
          <Sensor>
              <Short_Name>MODIS</Short_Name>
              <Long_Name>Cross-track Scanning Radiometer</Long_Name>
              <Technique>Radiometry</Technique>
          </Sensor>
      </Instrument>
  </Platform>

 

ECHO 10 Collection:

<Platforms>

              <Platform>

                      <ShortName>ICESat</ShortName>

                      <LongName>Ice, Cloud, and Land Elevation Satellite</LongName>

                      <Type>Spacecraft</Type>

                      <Characteristics>

                              <Characteristic>

                                      <Name>OrbitInclination</Name>

                                      <Description>Angle between the orbit plane and the Earth's equatorial

                                              plane</Description>

                                      <DataType>float</DataType>

                                      <Unit>Degrees</Unit>

                                      <Value>94.0</Value>

                              </Characteristic>

                              <Characteristic>

                                      <Name>OrbitalPeriod</Name>

                                      <Description>Orbital period in decimal minutes.</Description>

                                      <DataType>float</DataType>

                                      <Unit>Minutes</Unit>

                                      <Value>96.7</Value>

                              </Characteristic>

                      </Characteristics>

                      <Instruments>

                          ...

                      </Instruments>

              </Platform>

      </Platforms>

 

ECHO 10 Granule:

<Platforms>

  <Platform>

      <ShortName>AIRCRAFT</ShortName>

      <Instruments...</Instruments>

  </Platform>
</Platforms>

 

ISO 19115-2

<gmi:platform>

                      <eos:EOS_Platform id="d142e304">

                            <gmi:identifier>

                                  <gmd:MD_Identifier>

                                        <gmd:code>

                                              <gco:CharacterString>ICESat</gco:CharacterString>

                                        </gmd:code>

                                        <gmd:description>

                                              <gco:CharacterString>Ice, Cloud, and Land Elevation Satellite</gco:CharacterString>

                                        </gmd:description>

                                  </gmd:MD_Identifier>

                            </gmi:identifier>

                            <gmi:description>

                                  <gco:CharacterString>Spacecraft</gco:CharacterString>

                            </gmi:description>

                            <gmi:instrument xlink:href="#d142e335"/>

                            <gmi:instrument xlink:href="#d142e423"/>

                            <eos:otherPropertyType>

                                  <gco:RecordType xlink:href="http://earthdata.nasa.gov/metadata/schema/eos/1.0/eos.xsd#xpointer(//element[@name='AdditionalAttributes'])">Echo Additional Attributes</gco:RecordType>

                            </eos:otherPropertyType>

                            <eos:otherProperty>

                                  <gco:Record>

                                        <eos:AdditionalAttributes><!--Platform Characteristic-->

                                              <eos:AdditionalAttribute>

                                                    <eos:reference>

                                                          <eos:EOS_AdditionalAttributeDescription>

                                                                <eos:type>

                                                                      <eos:EOS_AdditionalAttributeTypeCode codeList="http://earthdata.nasa.gov/metadata/resources/Codelists.xml#EOS_AdditionalAttributeTypeCode"

                                                                                                                                                codeListValue="platformInformation">platformInformation</eos:EOS_AdditionalAttributeTypeCode>

                                                                </eos:type>

                                                                <eos:name>

                                                                      <gco:CharacterString>OrbitInclination</gco:CharacterString>

                                                                </eos:name>

                                                                <eos:description>

                                                                      <gco:CharacterString>Angle between the orbit plane and the Earth's equatorial plane</gco:CharacterString>

                                                                </eos:description>

                                                                <eos:dataType>

                                                                      <eos:EOS_AdditionalAttributeDataTypeCode codeList="http://earthdata.nasa.gov/metadata/resources/Codelists.xml#EOS_AdditionalAttributeDataTypeCode"

                                                                                                                                                        codeListValue="float">float</eos:EOS_AdditionalAttributeDataTypeCode>

                                                                </eos:dataType>

                                                                <eos:parameterUnitsOfMeasure>

                                                                      <gco:CharacterString>Degrees</gco:CharacterString>

                                                                </eos:parameterUnitsOfMeasure>

                                                          </eos:EOS_AdditionalAttributeDescription>

                                                    </eos:reference>

                                                    <eos:value>

                                                          <gco:CharacterString>94.0</gco:CharacterString>

                                                    </eos:value>

                                              </eos:AdditionalAttribute>

                                              ...

                                        </eos:AdditionalAttributes>

                                  </gco:Record>

                            </eos:otherProperty>

                      </eos:EOS_Platform>

                </gmi:platform>

---------------------------------------------------

<gmd:descriptiveKeywords>

                      <gmd:MD_Keywords>

                            <gmd:keyword>

                                  <gco:CharacterString>ICESat &gt; Ice, Cloud, and Land Elevation Satellite</gco:CharacterString>

                            </gmd:keyword>

                            <gmd:type>

                                  <gmd:MD_KeywordTypeCode codeList="http://www.isotc211.org/2005/resources/Codelist/gmxCodelists.xml#MD_KeywordTypeCode"

                                                                                  codeListValue="platform">platform</gmd:MD_KeywordTypeCode>

                            </gmd:type>

                            <gmd:thesaurusName>

                ...

            </gmd:thesaurusName>

      </gmd:MD_Keywords>

</gmd:descriptiveKeywords>

 

Source Data Information:

DIF 9 - https://cmr.earthdata.nasa.gov:443/search/concepts/C1214591238-SCIOPS

DIF 10 - https://cmr.earthdata.nasa.gov:443/search/concepts/C186802661-LAADS

ECHO 10 Collection - https://cmr.earthdata.nasa.gov:443/search/concepts/C1000000444-NSIDC_ECS

ECHO 10 Granule - https://cmr.earthdata.nasa.gov:443/search/concepts/G7108549-LARC_ASDC

ISO 19115-2 - https://cmr.earthdata.nasa.gov:443/search/concepts/C1000000444-NSIDC_ECS.iso

 

2.15.1     Instrument

Element Specification

Platform/Instrument (1..*)
Platform/Instrument/ShortName     (1)
Platform/Instrument/LongName     (0..1)
Platform/Instrument/Technique     (0..1)
Platform/Instrument/Characteristics     (0..*)
Platform/Instrument/Characteristics/Name     (1)
Platform/Instrument/Characteristics/Description     (1)
Platform/Instrument/Characteristics/DataType     (1)
Platform/Instrument/Characteristics/Unit     (1)
Platform/Instrument/Characteristics/Value     (1)
Platform/Instrument/OperationalMode     (0..*)

Platform/Instrument/NumberOfInstruments     (0..1)

Platform/Instrument/ComposedOf/Instrument   (0..*)    

Description

The Instrument element is nested within the Platform element and is used to register the device that measured or recorded the data, including direct human observation. This is useful to find data from a specific instrument. Note that the use of the "Sensor" object has been removed from UMM to avoid confusion between the names   "Sensor" and "Instrument" as well as rationalizing the use of Instrument with the ISO Instrument representation. To provide compatability with DIF 10 we map /DIF/Platform/Instrument/Sensor to Platform/Instrument/Instrument in UMM. For ECHO 10, we also map Sensor objects to UMM Instrument objects.

 

The "ComposedOf" relationship shown above   provides the ability for an instrument to be composed of one of more other instruments. This hierarchical representation of Instrument composition provides the mechanism for modeling the complexity of modern instruments. The nesting of instruments within an instrument is currently limited to 1 level and all instrument short names within a platform must be unique.

 

Profile Utilization

Collection, Granule

 

Cardinality

0..*

 

Analysis

This element is found in ECHO, GCMD, and EMS. It is controlled within GCMD but not within ECHO or EMS. ECHO and GCMD DIF 10's Instrument element includes the following sub-elements: ShortName, LongName, Technique, NumberOfSensors, Characteristics, Sensors, and OperationModes. GCMD's DIF 9 Source_Name element does not nest the Instrument sub-element or include any of the other elements found in ECHO. Some of the characteristics information is captured in the GCMD DIF 9 ancillary instrument metadata document. Because this is a newly required element in the UMM and not all collections have associated instruments, the keywords "Not Available", "Not Applicable", and "Unknown" will be added to the controlled keyword list for collections that are not associated with an instrument.

 

The ISO 19115-2 MI_Instrument class was extended to EOS_Instrument in order to facilitate the addition of ECHO additional attributes to the instrument descriptions.

 

Significant changes in UMM Version 1.3

The use of the terms "Instrument" and "Sensor" has been a source of confusion and debate throughout the evolution of ESDIS metadata standards development. GCMD's DIF standard used SensorName to represent an instrument. ECHO-10 later attempted to model the complexity of modern instruments by creating an instrument object that can be composed of multiple sensors. During the development of UMM, both approaches were supported by creating both Instrument and Sensor objects. Beginning with Version 1.3 of UMM-Common, the Sensor object was removed in favor of using Instrument as the generalization of both Instrument and Sensor. There was little semantic difference between the objects, so removing the Sensor class while retaining the ECHO-like relationships between instruments provides a rich structure for describing the instruments provided on a modern platform and eliminates the Sensor/Instrument debate for the entire CMR community.

 

The ECHO model of an Instrument that is composed of Sensors is implemented in UMM by using instrument composition. Figure 2 below shows the relationships between the Acquisition Information, Platform and Instrument objects. Note that the Instrument object now has a recursive relationship that is titled "ComposedOf". This relationship enables a hierarchy of Instrument objects where each instrument can be composed of one or more other instruments. This provides the capability to model complex instruments without resorting to a Sensor object.

 

https://rms.earthdata.nasa.gov/attachment/5625/Screen%20Shot%202016-09-07%20at%202.04.59%20PM.png data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw%3D%3D

Figure 1 : Platform and Instrument Relationships

 

Using the ECHO 10 example from below, a UMM-C representation written in JSON, as is implemented in the CMR, would look like the following:  

                    ...

                      "Instruments": [
                              {
                                      "ShortName": "GLAS",
                                      "LongName": "Geoscience Laser Altimeter System",
                                      "Technique": "Laser Altimetry and Light Detection and Radar",
                                      "Characteristics": [
                                              {
                                                      "DataType": "int",
                                                      "Description": "The width of the sensor scan as the satellite moves along the ground track.",
                                                      "Name": "SwathWidth",
                                                      "Unit": "kilometers",
                                                      "Value": "2"
                                              }
                                      ],
                                      "ComposedOf": {
                                              "Instruments": [
                                                      {
                                                              "ShortName": "LA",
                                                              "LongName": "Laser Altimeter",
                                                              "Technique": "Exact Measurement of Time between Transmit Pulse and receive ground return",
                                                              "Characteristics": [
                                                                      {
                                                                              "DataType": "varchar",
                                                                              "Description": "transmission",
                                                                              "Name": "wavelength",
                                                                              "Unit": "nanometer",
                                                                              "Value": "1064 nm"
                                                                      },
                                                                      {
                                                                              "DataType": "varchar",
                                                                              "Description": "digitizer",
                                                                              "Name": "waveform",
                                                                              "Unit": "counts",
                                                                              "Value": "0-255"
                                                                      }
                                                              ]
                                                      },
                                                      {
                                                              "ShortName": "PC",
                                                              "LongName": "Photon Counter for the 532 nm Aerosol Returns",
                                                              "Technique": "Counting of 532nm photon return in 75m bins 40km to surface",
                                                              "Characteristics": [
                                                                    {
                                                                              "DataType": "varchar",
                                                                              "Description": "detector",
                                                                              "Name": "wavelength",
                                                                              "Unit": "nanometer",
                                                                              "Value": "532nm"
                                                                      }
                                                              ]
                                                      }
                                                    ...
                                              ]
                                      }
                              },
                              {
                                      "ShortName": "GPS",
                                      "LongName": "Global Positioning System Receiver",
                                      "Technique": "Radionavigation",
                                      "ComposedOf": {
                                              "Instruments": [
                                                      {
                                                              "ShortName": "GPS Receiver",
                                                              "LongName": "Dual frequency GPS receiver",
                                                              "Technique": "Pseudorange and carrier phase"
                                                      }
                                              ]
                                      }
                              }
                      ]

                      ...

 

Mapping

DIF 9:

/DIF/Sensor_Name/

 

DIF 10:

/DIF/Platform/Instrument/

and

/DIF/Platform/Instrument/Sensor

 

ECHO 10 Collection:

/Collection/Platforms/Platform/Instruments/Instrument/

and

/Collection/Platforms/Platform/Instruments/Instrument/Sensors/Sensor/

 

ECHO 10 Granule:

/Granule/Platforms/Platform/Instruments/Instrument/

 

ISO 19115-2:

/gmi:MI_Metadata/gmi:acquisitionInformation/gmi:MI_AcquisitionInformation/gmi:instrument/eos:EOS_Instrument/

and

/gmi:MI_Metadata/gmi:acquisitionInformation/gmi:MI_AcquisitionInformation/gmi:instrument/eos:EOS_Instrument/eos:sensor/eos:EOS_Sensor/

and

/gmi:MI_Metadata/gmd:identificationInfo/gmd:MD_DataIdentification/gmd:descriptiveKeywords/gmd:MD_Keywords/gmd:keyword/gco:CharacterString

with

/gmi:MI_Metadata/gmd:identificationInfo/gmd:MD_DataIdentification/gmd:descriptiveKeywords/gmd:MD_Keywords/gmd:keyword/gmd:type/MD_KeywordTypeCode[@codeListValue="instrument"]

 

Examples

DIF 9:

<Sensor_Name uuid="e5fde4c4-15cd-4278-b922-005488df096f">

    <Short_Name>GPS</Short_Name>

    <Long_Name>Global Positioning System</Long_Name>

</Sensor_Name>

<Sensor_Name uuid="029feed6-79dc-4316-b8ac-be8f1e557f89">

    <Short_Name>GPS RECEIVERS</Short_Name>

</Sensor_Name>

 

DIF 10:

<Platform>
  <Type>Earth Observation Satellites</Type>
  <Short_Name>AQUA</Short_Name>
  <Long_Name>Earth Observing System, AQUA</Long_Name>
  <Characteristics>
      <Name>EquatorCrossingTime</Name>
      <Description>Local time of the equator crossing and direction (ascending or descending)</Description>
      <DataType>Time/direction (ascending)</DataType>
      <Unit>Local Mean Time</Unit>
      <Value>3:30, ascending</Value>
  </Characteristics>
  <Instrument>
      <Short_Name>MODIS</Short_Name>
      <Long_Name>Moderate-Resolution Imaging Spectroradiometer</Long_Name>
      <Technique>Imaging Spectroradiometry</Technique>
      <Sensor>
          <Short_Name>MODIS</Short_Name>
          <Long_Name>Cross-track Scanning Radiometer</Long_Name>
          <Technique>Radiometry</Technique>
      </Sensor>
  </Instrument>
</Platform>

 

ECHO 10 Collection:

<Instruments>

                              <Instrument>

                                      <ShortName>GLAS</ShortName>

                                      <LongName>Geoscience Laser Altimeter System</LongName>

                                      <Technique>Laser Altimetry and Light Detection and Radar</Technique>

                                      <Characteristics>

                                              <Characteristic>

                                                      <Name>SwathWidth</Name>

                                                      <Description>The width of the sensor scan as the satellite moves along

                                                              the ground track.</Description>

                                                      <DataType>int</DataType>

                                                      <Unit>kilometers</Unit>

                                                      <Value>2</Value>

                                              </Characteristic>

                                      </Characteristics>

                                      <Sensors>

                                              ...

                                      </Sensors>

                              </Instrument>

                              <Instrument>

                                      <ShortName>GPS</ShortName>

                                      <LongName>Global Positioning System Receiver</LongName>

                                      <Technique>Radionavigation</Technique>

                                      <Sensors>

                                              <Sensor>

                                                      <ShortName>GPS Receiver</ShortName>

                                                      <LongName>Dual frequency GPS receiver</LongName>

                                                      <Technique>Pseudorange and carrier phase</Technique>

                                              </Sensor>

                                      </Sensors>

                              </Instrument>

                      </Instruments>

 

ECHO 10 Granule:

<Instruments>

  <Instrument>

      <ShortName>AIRMSPI INSTRUMENT</ShortName>

      <Characteristics/>

      <Sensors...</Sensors

  </Instrument>

</Instruments>

 

EOS Extension of ISO 19115-2

<gmi:instrument>

                      <eos:EOS_Instrument id="d142e335">

                            <gmi:citation>

                                  <gmd:CI_Citation>

                                        <gmd:title>

                                              <gco:CharacterString>GLAS&gt;Geoscience Laser Altimeter System</gco:CharacterString>

                                        </gmd:title>

                                        <gmd:date gco:nilReason="unknown"/>

                                  </gmd:CI_Citation>

                            </gmi:citation>

                            <gmi:identifier>

                                  <gmd:MD_Identifier>

                                        <gmd:code>

                                              <gco:CharacterString>GLAS</gco:CharacterString>

                                        </gmd:code>

                                        <gmd:description>

                                              <gco:CharacterString>Geoscience Laser Altimeter System</gco:CharacterString>

                                        </gmd:description>

                                  </gmd:MD_Identifier>

                            </gmi:identifier>

                            <gmi:type>

                                  <gco:CharacterString>Laser Altimetry and Light Detection and Radar</gco:CharacterString>

                            </gmi:type>

                            <gmi:description gco:nilReason="missing"/>

                            <gmi:mountedOn xlink:href="#d142e304"/>

                            <eos:otherPropertyType>

                                  <gco:RecordType xlink:href="http://earthdata.nasa.gov/metadata/schema/eos/1.0/eos.xsd#xpointer(//element[@name='AdditionalAttributes'])">Echo Additional Attributes</gco:RecordType>

                            </eos:otherPropertyType>

                            <eos:otherProperty>

                                  <gco:Record>

                                        <eos:AdditionalAttributes><!--Instrument Characteristic-->

                                              <eos:AdditionalAttribute>

                                                    <eos:reference>

                                                          <eos:EOS_AdditionalAttributeDescription>

                                                                <eos:type>

                                                                      <eos:EOS_AdditionalAttributeTypeCode codeList="http://earthdata.nasa.gov/metadata/resources/Codelists.xml#EOS_AdditionalAttributeTypeCode"

                                                                                                                                                codeListValue="instrumentInformation">instrumentInformation</eos:EOS_AdditionalAttributeTypeCode>

                                                                </eos:type>

                                                                <eos:name>

                                                                      <gco:CharacterString>SwathWidth</gco:CharacterString>

                                                                </eos:name>

                                                                <eos:description>

                                                                      <gco:CharacterString>The width of the sensor scan as the satellite moves along the ground track.</gco:CharacterString>

                                                                </eos:description>

                                                                <eos:dataType>

                                                                      <eos:EOS_AdditionalAttributeDataTypeCode codeList="http://earthdata.nasa.gov/metadata/resources/Codelists.xml#EOS_AdditionalAttributeDataTypeCode"

                                                                                                                                                        codeListValue="int">int</eos:EOS_AdditionalAttributeDataTypeCode>

                                                                </eos:dataType>

                                                                <eos:parameterUnitsOfMeasure>

                                                                      <gco:CharacterString>kilometers</gco:CharacterString>

                                                                </eos:parameterUnitsOfMeasure>

                                                          </eos:EOS_AdditionalAttributeDescription>

                                                    </eos:reference>

                                                    <eos:value>

                                                          <gco:CharacterString>2</gco:CharacterString>

                                                    </eos:value>

                                              </eos:AdditionalAttribute>

                                              ...

                                        </eos:AdditionalAttributes>

                                  </gco:Record>

                            </eos:otherProperty>

                            ...

      </eos:EOS_Instrument>

</gmi:instrument>

-------------------------------------------

<gmd:descriptiveKeywords>

                      <gmd:MD_Keywords>

                            <gmd:keyword>

                                  <gco:CharacterString>GLAS &gt; Geoscience Laser Altimeter System</gco:CharacterString>

                            </gmd:keyword>

                            <gmd:keyword>

                                  <gco:CharacterString>GPS &gt; Global Positioning System Receiver</gco:CharacterString>

                            </gmd:keyword>

                            <gmd:type>

                                  <gmd:MD_KeywordTypeCode codeList="http://www.isotc211.org/2005/resources/Codelist/gmxCodelists.xml#MD_KeywordTypeCode"

                                                                                  codeListValue="instrument">instrument</gmd:MD_KeywordTypeCode>

                            </gmd:type>

        <gmd:thesaurusName>

          ...

        </gmd:thesaurusName>

  </gmd:MD_Keywords>

</gmd:descriptiveKeywords>

 

Source Data Information:

DIF 9 - https://cmr.earthdata.nasa.gov:443/search/concepts/C1214591238-SCIOPS
DIF 10 - https://cmr.earthdata.nasa.gov:443/search/concepts/C186802661-LAADS

ECHO 10 Collection - https://cmr.earthdata.nasa.gov:443/search/concepts/C1000000444-NSIDC_ECS
ECHO 10 Granule - https://cmr.earthdata.nasa.gov:443/search/concepts/G7108549-LARC_ASDC

ISO 19115-2 - https://cmr.earthdata.nasa.gov:443/search/concepts/C1000000444-NSIDC_ECS.iso

 

2.16      Project

Element Specification

Project
Project/ShortName     (1)
Project/Campaign     (0..*)
Project/LongName     (0..1)
Project/StartDate     (0..1)
Project/EndDate     (0..1)

 

Description

The project element describes the name of the scientific program, field campaign, or project from which the data were collected. This element may also cover a long term project that continuously creates new data sets - like MEaSUREs from ISCCP and NVAP or CMARES from MISR.

 

Project also includes the Campaign sub-element to support multiple campaigns under the same project.

 

Profile Utilization

Collection, Granule

 

Cardinality

0..*

 

Analysis

This element is found in both ECHO, where it is not controlled, and within GCMD, where it is controlled. Multiple campaigns can be associated with the same project, which is not represented in either GCMD or ECHO (keyword with no hierarchy in either format).     The EMS element is mapped to UMM/Platform/ShortName; EMS "Mission" can also be mapped to UMM/Project/Campaign if applicable. EMS intends to use only one value and employ mission, platform, and project (in this order) based on the availability of the information. Because the Project element is required in the UMM-C, EMS may not have to use platform or any other element; thus, no mapping is required.

 

Mapping

DIF 9:

/DIF/Project/

 

DIF 10:

/DIF/Project/

 

ECHO 10 Collection:

/Collection/Campaigns/Campaign/

 

ECHO 10 Granule:

/Granule/Campaigns/Campaign/

 

ISO 19115-2:

/gmi:MI_Metadata/gmi:acquisitionInformation/gmi:MI_AcquisitionInformation/gmi:operation/gmi:MI_Operation/

and

/gmi:MI_Metadata/gmd:identificationInfo/gmd:MD_DataIdentification/gmd:descriptiveKeywords/gmd:MD_Keywords/gmd:keyword/gco:CharacterString

with

/gmi:MI_Metadata/gmd:identificationInfo/gmd:MD_DataIdentification/gmd:descriptiveKeywords/gmd:MD_Keywords/gmd:keyword/gmd:type/MD_KeywordTypeCode[@codeListValue="project"]

 

Examples

DIF 9:

<Project uuid="f560fb6c-341d-4626-969f-2978d261f161">

    <Short_Name>OBIS</Short_Name>

    <Long_Name>OCEAN BIOGEOGRAPHIC INFORMATION SYSTEM</Long_Name>

</Project>

<Project uuid="bb4e35cc-520c-4d24-984f-d81cb2965a85">

    <Short_Name>COML</Short_Name>

    <Long_Name>CENSUS OF MARINE LIFE</Long_Name>

</Project>

 

DIF 10:

<Project>

    <Short_Name>MEASURES</Short_Name>
    <Campaign>SO2</Campaign>
    <Long_Name>Making Earth Science Data Records for Use in Research Environments</Long_Name>
</Project>

 

ECHO 10 Collection:

  <Campaigns>
      <Campaign>
          <ShortName>2009_AN_NASA</ShortName>
          <LongName>Operation IceBridge West Antarctica/Antarctic Sea Ice 2009</LongName>
          <StartDate>2009-01-01T00:00:00Z</StartDate>
          <EndDate>2009-12-31T00:00:00Z</EndDate>
      </Campaign>
      <Campaign>
          <ShortName>2010_GR_NASA</ShortName>
          <LongName>Operation IceBridge Greenland/Arctic Sea Ice 2010</LongName>
          <StartDate>2010-01-01T00:00:00Z</StartDate>
          <EndDate>2010-12-31T00:00:00Z</EndDate>
      </Campaign>
      <Campaign>
          <ShortName>2010_AN_NASA</ShortName>
          <LongName>Operation IceBridge West Antarctica/Antarctic Sea Ice 2010</LongName>
          <StartDate>2010-01-01T00:00:00Z</StartDate>
          <EndDate>2010-12-31T00:00:00Z</EndDate>
      </Campaign>
      <Campaign>
          <ShortName>2011_GR_NASA</ShortName>
          <LongName>Operation IceBridge Greenland/Arctic Sea Ice 2011</LongName>
          <StartDate>2011-01-01T00:00:00Z</StartDate>
          <EndDate>2011-12-31T00:00:00Z</EndDate>
      </Campaign>
    ...
  </Campaigns>

 

ECHO 10 Granule:

<Campaigns><Campaign><ShortName>AIRMSPI</ShortName></Campaign></Campaigns>

 

ISO 19115-2:

...

          <gmi:operation>
              <gmi:MI_Operation>
                  <gmi:description>
                      <gco:CharacterString>2009_AN_NASA &gt; Operation IceBridge West Antarctica/Antarctic Sea Ice 2009 2009-01-01T00:00:00Z to 2009-12-31T00:00:00Z</gco:CharacterString>
                  </gmi:description>
                  <gmi:identifier>
                      <gmd:MD_Identifier>
                          <gmd:code>
                              <gco:CharacterString>2009_AN_NASA</gco:CharacterString>
                          </gmd:code>
                      </gmd:MD_Identifier>
                  </gmi:identifier>
                  <gmi:status/>
                  <gmi:parentOperation gco:nilReason="inapplicable"/>
              </gmi:MI_Operation>
          </gmi:operation>
          <gmi:operation>
              <gmi:MI_Operation>
                  <gmi:description>
                      <gco:CharacterString>2010_GR_NASA &gt; Operation IceBridge Greenland/Arctic Sea Ice 2010 2010-01-01T00:00:00Z to 2010-12-31T00:00:00Z</gco:CharacterString>
                  </gmi:description>
                  <gmi:identifier>
                      <gmd:MD_Identifier>
                          <gmd:code>
                              <gco:CharacterString>2010_GR_NASA</gco:CharacterString>
                          </gmd:code>
                      </gmd:MD_Identifier>
                  </gmi:identifier>
                  <gmi:status/>
                  <gmi:parentOperation gco:nilReason="inapplicable"/>
              </gmi:MI_Operation>
          </gmi:operation>
          <gmi:operation>
              <gmi:MI_Operation>
                  <gmi:description>
                      <gco:CharacterString>2010_AN_NASA &gt; Operation IceBridge West Antarctica/Antarctic Sea Ice 2010 2010-01-01T00:00:00Z to 2010-12-31T00:00:00Z</gco:CharacterString>
                  </gmi:description>
                  <gmi:identifier>
                      <gmd:MD_Identifier>
                          <gmd:code>
                              <gco:CharacterString>2010_AN_NASA</gco:CharacterString>
                          </gmd:code>
                      </gmd:MD_Identifier>
                  </gmi:identifier>
                  <gmi:status/>
                  <gmi:parentOperation gco:nilReason="inapplicable"/>
              </gmi:MI_Operation>
          </gmi:operation>
          <gmi:operation>
              <gmi:MI_Operation>
                  <gmi:description>
                      <gco:CharacterString>2011_GR_NASA &gt; Operation IceBridge Greenland/Arctic Sea Ice 2011 2011-01-01T00:00:00Z to 2011-12-31T00:00:00Z</gco:CharacterString>
                  </gmi:description>
                  <gmi:identifier>
                      <gmd:MD_Identifier>
                          <gmd:code>
                              <gco:CharacterString>2011_GR_NASA</gco:CharacterString>
                          </gmd:code>
                      </gmd:MD_Identifier>
                  </gmi:identifier>
                  <gmi:status/>
                  <gmi:parentOperation gco:nilReason="inapplicable"/>
              </gmi:MI_Operation>
          </gmi:operation>

...

-----------------------

          <gmd:descriptiveKeywords>
              <gmd:MD_Keywords>
                  <gmd:keyword>
                      <gco:CharacterString>2009_AN_NASA &gt; Operation IceBridge West Antarctica/Antarctic Sea Ice 2009</gco:CharacterString>
                  </gmd:keyword>
                  <gmd:keyword>
                      <gco:CharacterString>2010_GR_NASA &gt; Operation IceBridge Greenland/Arctic Sea Ice 2010</gco:CharacterString>
                  </gmd:keyword>
                  <gmd:keyword>
                      <gco:CharacterString>2010_AN_NASA &gt; Operation IceBridge West Antarctica/Antarctic Sea Ice 2010</gco:CharacterString>
                  </gmd:keyword>
                  <gmd:keyword>
                      <gco:CharacterString>2011_GR_NASA &gt; Operation IceBridge Greenland/Arctic Sea Ice 2011</gco:CharacterString>
                  </gmd:keyword>
                  ...
                  </gmd:keyword>
                  <gmd:type>
                      <gmd:MD_KeywordTypeCode codeList="http://www.isotc211.org/2005/resources/Codelist/gmxCodelists.xml#MD_KeywordTypeCode" codeListValue="project">project</gmd:MD_KeywordTypeCode>
                  </gmd:type>
                  <gmd:thesaurusName>
                      <gmd:CI_Citation>
                          <gmd:title>
                              <gco:CharacterString>NASA/GCMD Project Keywords</gco:CharacterString>
                          </gmd:title>