The Global Change Master Directory (GCMD) keywords are a hierarchical set of controlled vocabularies in

Earth Science Earth science or geoscience includes all fields of natural science related to the planet Earth. This is a branch of science dealing with the physical, chemical, and biological complex constitutions and synergistic linkages of Earth's four spheres ...

. The GCMD is one of NASA’s contributions to the international

Committee on Earth Observation Satellites __NOTOC__ The Committee on Earth Observation Satellites (CEOS) is an international organization created in 1984 around the topic of Earth observation satellites. As of 2023, it has 34 national space agencies as regular members and other 29 assoc ...

(CEOS), where the GCMD is coordinated by the International Directory Network (IDN) Interest Group. The GCMD was deprecated by NASA’s Earth Science Data and Information System (ESDIS) Project in June 2020.

Earth Observing System Data and Information System The Earth Observing System Data and Information System (EOSDIS) is a key core capability in NASA's Earth Science Data Systems Program. Designed and maintained by Raytheon Intelligence & Space, it is a comprehensive data and information system desi ...

(EOSDIS) *

Climate change Present-day climate change includes both global warming—the ongoing increase in Global surface temperature, global average temperature—and its wider effects on Earth's climate system. Climate variability and change, Climate change in ...

OPeNDAP OPeNDAP (Open-source Project for a Network Data Access Protocol) is an endeavor focused on enhancing the retrieval of remote, structured data through a Web-based architecture and a discipline-neutral Data Access Protocol (DAP). Project Widely used ...

Ozone Ozone () (or trioxygen) is an Inorganic compound, inorganic molecule with the chemical formula . It is a pale blue gas with a distinctively pungent smell. It is an allotrope of oxygen that is much less stable than the diatomic allotrope , break ...

Sunspot Sunspots are temporary spots on the Sun's surface that are darker than the surrounding area. They are one of the most recognizable Solar phenomena and despite the fact that they are mostly visible in the solar photosphere they usually aff ...

Geospatial metadata Geospatial metadata (also geographic metadata) is a type of metadata applicable to geographic data and information. Such objects may be stored in a geographic information system (GIS) or may simply be documents, data-sets, images or other objects, ...

Solar variation The Solar cycle, also known as the solar magnetic activity cycle, sunspot cycle, or Schwabe cycle, is a periodic 11-year change in the Sun's activity measured in terms of variations in the number of observed sunspots on the Sun's surface. ...

* IDN

References

External links

GCMD Keyword Viewer

International Directory Network

Earth Science Data and Information System (ESDIS) of NASA

Committee on Earth Observation Satellites (CEOS)
{{Webarchive, url=https://web.archive.org/web/20240315054235/https://ceos.org/ , date=2024-03-15 Earth observation projects American environmental websites Metadata NASA programs

See also

References

External links