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The table below shows where geographic elements are used in CMR metadata collections.

Table 5:

Geographic Extents Extent existence in the CMR (Elements)

Geographic Extent existence in the CMR (Items, Elements and Attributes)

Geographic Extent completeness in the CMR (Elements)

Geographic Extents Extent completeness in the CMR (Items, Elements and Attributes)

Observations

• Bounding Box extent elements are used in all CMR metadata collection with the exception of OMINRT
• 18 out of 26 CMR collection are using the extentTypeCode element with a value of 1
• 8 NASA collections are using the gmd:geographicIdentifier/gmd:description.  Commonly recurring values include:

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