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DRAFT
Introduction
This wiki resource provides best practices documentation for all collection and granule metadata concepts supported by the Common Metadata Repository (CMR). It is intended to support metadata authors as well as provide general guidance to those seeking information about CMR supported metadata.
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There is a separate wiki page for each high level metadata concept in the UMM. The drop down sections tables below link directly to the documentation , and are categorized by UMM model:
The table below illustrates which elements in UMM-Common are shared between both Collections and Granules and their description. You will also see that while the elements are identical, some standards will include less information or different information based on the specific granule, such as that granules temporal extent. It is important to note that this is just a subset of what is in UMM-Common and the full list of elements found in UMM-Common can be from other objects (such as services and visualizations).
for each concept:
Data Identification Concepts:
| Element | UMM Model | Definition | Required |
|---|---|---|---|
| Entry Title | |||
| Element | Definition | Required | |
| Spatial Extent | This element describes the geographic coverage title of the datadataset described by the metadata. | No | |
| Temporal Extent | This element describes when data were acquired or collected. | No | |
| Platform | This element describes the relevant platforms used to acquire the data. | Yes | |
| Instrument | This element is used to register the device that measured or recorded the data, including direct human observation. | Yes | |
| Project | This element describes the scientific endeavor(s) with which the collection is associated. | No | |
| Related URL | 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. | Yes | |
| Data Dates | This element is used to identify dates when the data or resource itself changed in some way. | No | |
| Use Constraints | This element defines how data may or may not be used to assure the protection of privacy or intellectual property. This includes license information, or any special restrictions, legal prerequisites, terms and conditions, and/or limitations on using the dataset. | No | |
| Access Constraints | This element describes any restrictions imposed on data access. Access Constraints can be described in a free text field with the option to provide an access control list (ACL) value. | No | |
| Metadata Language | This element specifies the language used in the metadata record (i.e. English, French, Chinese, etc.). | No | |
| Metadata Dates | This element is used to identify dates when the metadata changed in some way. This element is made of two sub-elements, Type and Date. | No | |
| Tiling Identification System | This element defines a named two-dimensional tiling system related to the collection. | No | |
| Additional Attributes | This element 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). | No | Language******** | The language used in the dataset (i.e. English, French, Chinese, etc.). Note: This is different from the language of the metadata.
| Yes | |||
| Short Name | Yes | ||
| Version | Yes | ||
| Version Description | No | ||
| DOI | Yes | ||
| Abstract | Yes | ||
| Purpose | No | ||
| Data Language | No | ||
| Data Dates | No | ||
| Processing Level | Yes | ||
| Collection Data Type | No | ||
| Collection Progress | Yes | ||
| Maturity | No | ||
| Collection Citation | |||
| Archive and Distribution Information | |||
| Access Constraints | |||
| Use Constraints | |||
| Quality | |||
| Contact Group | |||
| Contact Person | |||
| Publication Reference | |||
| Metadata Association |
Temporal Information Concepts:
| Element | UMM Model | Definition | Required? |
|---|---|---|---|
| Temporal Extent | |||
| Temporal Keywords | |||
| Paleo Temporal Coverage |
Spatial Information Concepts:
| Element | UMM Model | Definition | Required? |
|---|---|---|---|
| Spatial Extent | UMM-Common | Yes | |
| Spatial Information | No | ||
| Tiling Identification System | No | ||
| Location Keywords | UMM-C | No |
Acquisition Information Concepts:
| Element | UMM Model | Definition | Required? |
|---|---|---|---|
| Platform | UMM-Common | Yes | |
| Instrument | UMM-Common | No | |
| Project | UMM-Common | No |
URLs:
| Element | UMM Model | Definition | Required? |
|---|---|---|---|
| UMM-Common | Yes | ||
| Online Resource |
|
Descriptive Keyword Concepts:
| Element | UMM Model | Definition | Required? |
|---|---|---|---|
| Science Keywords | |||
| Ancillary Keywords | |||
| ISO Topic Category | |||
| Additional Attributes |
Metadata Information Concepts:
| Element | UMM Model | Definition | Required? |
|---|---|---|---|
| Metadata Language | |||
| Metadata Dates | |||
| Directory Names |
Granule Specific Concepts:
| Element | UMM Model | Definition | Required? |
|---|---|---|---|
| GranuleUR | |||
| CollectionReference | |||
| Identifiers | |||
| Production Date Time | |||
| Provider Dates | |||
| Metadata Specification | |||
| Archive and Distribution Information for Granules | |||
| Cloud Cover | |||
| Day Night Flag | |||
| Grid Mapping Names | |||
| Native Projection Names | |||
| Input Granules | |||
| Measured Parameters | |||
| PGE Version Class | |||
| Reprocessing Actual | |||
| Reprocessing Planned | |||
| Related URLs (Granules) | *Will probably combine with existing Related URLs UMM-Common page |
Related Resources, Information, and Documentation
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