Sponsored by NASA's Atmospheric Composition Focus Area in Earth Science

Cape Matatula, American Samoa

The Advanced Global Atmospheric Gases Experiment (AGAGE) has been measuring the composition of the global atmosphere continuously since 1978.

Learn more about our global network

Publications

Publications that have interpreted AGAGE measurements to determine trace gas lifetimes and emissions.

Instruments

Learn more about the instruments used in the AGAGE global network.

Data

Archive of the entire ALE/GAGE/AGAGE database, with all calibrated measurements from June 1978 to present (including pollution events).

AGAGE is supported by a consortium of multinational institutions and organizations.

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NASA Official: Gao Chen Site Curator: AGAGE Webmaster Last Updated: March 2025