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There is a separate wiki page for each high level metadata concept in the UMM. The Click on the expandable tables below link directly to view the different metadata concepts and access the documentation for each concept:
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| title | Granule Specific Concepts |
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| Element | UMM Model | Definition | Required? |
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| Archive and Distribution Information for Granules | UMM-G | This element provides information about the files or file packages that make up the granule. | No | | Cloud Cover | UMM-G | This element describes a percentage value indicating how much of the area of a granule (the EOSDIS data unit) has been obscured by clouds. It is worth noting that there are many different measures of cloud cover within the EOSDIS data holdings and that the cloud cover parameter that is represented in the archive is dataset-specific. | No | | Collection Reference | UMM-G | This element describes the collection metadata record's short name and version, or entry title to which this granule metadata record belongs. | Yes | | Day Night Flag | UMM-G | This element identifies whether a granule was collected during the day, at night (any time between sunset and sunrise), or both. | No | | GranuleUR | UMM-G | This element describes the Universal Reference ID of the granule referred by the data provider. This ID is unique per data provider. | Yes | | Grid Mapping Names | UMM-G | Represents the native grid mapping of the granule, if the granule is gridded. | No | | Identifiers | UMM-G | This element holds various types of granule identifiers. | Yes | | Input Granules | UMM-G | This element describes the identification of the input granule(s) for a specific granule. | No | | Measured Parameters | UMM-G | This element describes the name of the geophysical parameter expressed in the data as well as associated quality flags and quality statistics. The quality statistics element contains measures of quality for the granule. The parameters used to set these measures are not preset and will be determined by the data producer. Each set of measures can occur many times either for the granule as a whole or for individual parameters. The quality flags contain the science, operational and automatic quality flags which indicate the overall quality assurance levels of specific parameter values within a granule. | No | | Metadata Specification | UMM-G | Requires the user to add in schema information into every granule record. It includes the schema's name, version, and URL location. The information is controlled through enumerations at the end of this schema. | Yes | | Native Projection Names | UMM-G | Represents the native projection of the granule if the granule has a native projection. | No | PGE Version Class | UMM-G | This element describes basic descriptive characteristics related to the Product Generation Executable associated with a granule. | No | | Production Date Time | UMM-G | This element provides the exact date and time a granule was produced using the following format: YYYYMMDDTHH:MM:SS (time is in UTC). | Yes | | Provider Dates | UMM-G | This element describes the dates related to activities involving the the granule and the data provider database with the exception for Delete. For Create, Update, and Insert the date is the date that the granule file is created, updated, or inserted into the provider database by the provider. Delete is the date that the CMR should delete the granule metadata record from its repository. | Yes | Related URLs (Granules) | UMM-G | *Will probably combine with existing Related URLs UMM-Common page | Yes | | Reprocessing Actual | UMM-G | This element provides what, if any, reprocessing has been performed on a granule. | No | | Reprocessing Planned | UMM-G | This element provides what, if any, reprocessing may be performed on a granule. | No | Spatial Extent | UMM-G | This element contains attributes which describe the horizontal (geographical) and/or vertical region over which the data was acquired. Spatial Extent includes any or all of Granule Localities, Horizontal Spatial Domain, and Vertical Spatial Domain. | No |
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Click here to see a list of all Collection level (UMM-C) metadata elements and corresponding documentation
Click here to see list of all Granule level (UMM-G) metadata elements and corresponding documentation
Additional Resources
Below are additional resources regarding the UMM and the CMR:
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