The NASA Global Change Master Directory (GCMD) staff is pleased to announce the release of the GCMD Keywords Version 13.9.1 Please find below a table of the keywords. All keywords are new except where noted as Updated. Please post any questions about this release to the GCMD Keyword Forum.

The keywords help facilitate the classification and discovery of Earth Science data by providing a rich vocabulary for characterizing the data. The GCMD keywords are used by hundreds of data providers worldwide for categorizing the ~51,000 records stored in the Common Metadata Repository

For more information about the keywords and how to access them, please visit the Keyword Landing Page. Questions about the keywords can be submitted to or directed to Valerie Dixon at

GCMD Keywords Version 13.9.1

Keyword TypeFollow links to view Keyword details in the GCMD Keyword Viewer
Platforms(Updated) Land-based Platforms > Field Sites > Transmitter Station
Platforms(Updated) Other >FIELD INVESTIGATION
ProjectCLIMMIG > Climate Migration 
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