This Global Change Master Directory (GCMD) keyword set contains names and descriptions of scientific programs and projects referenced in metadata records of GCMD keyword users. The keyword labels are usually short names (abbreviations or acronyms); the descriptions provide more information about the scientific program, field campaign, or project.
For example: APIS
, the Antarctic Pack Ice Seals Project.
The keywords are arranged in clusters based on the first letter of their labels. For example, the cluster A - C
contains the keywords whose labels begin with either A, B, or C.
These keywords have been used by organizations such as the Space Radiation Laboratory, California Institute of Technology (USA), and the Japan Aerospace Exploration Agency.
Any person or organization may request an addition, modification or deletion to the keywords. A requester can be from the user community, a provider of metadata to GCMD, or any other GCMD stakeholder.
Further information is available in the Governance and community guide and at the GCMD Keywords Community Forum.
Generic information about the GCMD keywords follows:
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 ~33,000 records stored in the Common Metadata Repository.
For more information about the keywords and how to access them, please visit the Keyword Landing Page. The GCMD User Support staff can be reached at gsfc-gcmduso@mail.nasa.gov. Questions can also be directed to Valerie Dixon at valerie.dixon@nasa.gov.