The Goddard Earth Sciences Data and Information Services Center (GES DISC) announces the availability of CO2 column-averaged dry air mole fraction data generated from measurements obtained by the Japanese Greenhouse gases Observing SATellite (GOSAT) platform. These data are Level 2 data generated by the Atmospheric CO2 Observations from Space (ACOS) Project at the NASA Jet Propulsion Laboratory (JPL).
The Japan Aerospace Exploration Agency (JAXA) has granted the ACOS Project access to GOSAT’s calibrated Level 1B measurements. The ACOS Project applies the Orbiting Carbon Observatory (OCO) calibration, validation, and remote sensing retrieval assets to analyze these GOSAT measurements. Data are available for selected soundings from April 2009 to present.
These data are in the Hierarchical Data Format (HDF5) and are available (along with documentation) from the Goddard Earth Sciences Data and Information Services Center Atmospheric Composition Portal:
and through the GOSAT/ACOS page at GES DISC:
or directly by one of the following methods:
The search and download interface Mirador:
or, using the keyword 'ACOS' :
Anonymous FTP access is available from:
Additional data set descriptions in the Global Change Master Directory:
Questions on these and other data holdings can be sent to the GES DISC Help Desk at: