Global Change Master Directory (GCMD) Keywords

Global Change Master Directory (GCMD) Keywords are a hierarchical set of controlled Earth Science vocabularies that help ensure Earth science data, services, and variables are described in a consistent and comprehensive manner and allow for the precise searching of metadata and subsequent retrieval of data, services, and variables. Initiated over twenty years ago, GCMD Keywords are periodically analyzed for relevancy and will continue to be refined and expanded in response to user needs.

Read more at earthdata.nasa.gov

GCIS Usage

Describes climate change concepts in GCIS in a coherent way using NASA’s structured Earth Science vocabularies.