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| title | Temporal Information Concepts |
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| Element | UMM Model | Definition | Required? |
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| Temporal Extent |
| This element describes when data were acquired or collected. | No | | Temporal Keywords |
| This element specifies a word or phrase which serves to summarize the temporal characteristics of a dataset. | No | | Paleo Temporal Coverage |
| This element defines the time period for geologic and/or paleoclimate data. The element is predominantly used for data samples that originated prior to 01-01-0001. | No |
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| title | Spatial Information Concepts |
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| Element | UMM Model | Definition | Required? |
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| Spatial Extent | UMM-Common | This element describes the geographic coverage of the data. | Yes | | Spatial Information |
| This element stores information about the reference frame from which horizontal and vertical spatial domains are measured. The horizontal reference frame includes fields for Geodetic Model, Geographic Coordinates, and Local Coordinates. The Vertical reference frame includes fields for altitudes (elevations) and depths. | No | | Tiling Identification System |
| This element defines a named two-dimensional tiling system related to the collection. | No | | Location Keywords | UMM-C | This element contains keywords that characterize the study area/region where data was collected. | No |
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| title | Acquisition Information Concepts |
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| Element | UMM Model | Definition | Required? |
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| PlatformPlatform | UMM-Common | This element describes the relevant platforms used to acquire the data. | Yes | | Instrument | UMM-Common | This element is used to register the device that measured or recorded the data, including direct human observation. | YesNo | | Project | UMM-Common | This element describes the scientific endeavor(s) with which the collection is associated. | No |
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| Element | UMM Model | Definition | Required? |
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Related URL | UMM-Common | 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 | | Online Resource |
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| title | Descriptive Keyword Concepts |
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| Element | UMM Model | Definition | Required? |
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| Science Keywords |
| This element enables specification of Earth Science keywords. | Yes | | Ancillary Keywords |
| This element allows metadata authors to provide words or phrases beyond the controlled Science Keyword vocabulary, to further describe the the collection. | No | | ISO Topic Category |
| This element identifies the topic category (or categories) from the EN ISO 19115 Topic Category Code List that pertain to a 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 |
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| title | Metadata Information Concepts |
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| Element | UMM Model | Definition | Required? |
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| 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 | | Directory Names |
| This element has been used historically by the GCMD internally to identify association, responsibility and/or ownership of the dataset, service or supplemental information. Note: This field only occurs in the DIF. When a DIF record is retrieved in the ECHO10 or ISO 19115 formats, this element will not be translated. | No |
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| title | Granule Specific Concepts |
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Additional Resources
Below are additional resources regarding the UMM and the CMR:
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