GCMD Metadata
From Earth Science Information Partners (ESIP)
NASA’s Global Change Master Directory (GCMD)
The Global Change Master Directory (GCMD) enables users to locate and obtain access to Earth science data sets and services relevant to global change and Earth science research.
Contact Person
DIF Metadata Contact:
Jianping Mao
301-614-6079
Jianping.Mao@nasa.gov
SERF Metadata Contact:
Tyler Stevens
301-352-4619
Tyler.B.Stevens@nasa.gov
Types of Metadata
- Directory Interchange Format (DIF)
- Service Entry Resource Format (SERF)
- Ancillary Description-Instrument (AD-I)
- Ancillary Description-Platform (AD-Pl)
- Ancillary Description-Project (AD-Pr)
- Ancillary Description-Data Center (AD-DC)
- Import/Export FGDC metadata
- Import ISO 19115 metadata
Approximate number of Metadata Records
- 19,000 (DIFs and SERFs combined)
Rate at which Metadata are being created/added
- For DIFs on average, 173 new and 585 updates per month.
- For SERFs on average, 22 new and 61 updates per month.
Locally hosted metadata services
- Z39.50
- OAI PMH
External Metadata Registries
- FGDC Clearinghouse
- Geospatial One-Stop
- GeoConnections
