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GEOS-CHEM global 3-D chemical transport model (CTM) - CH4, C2H6, CO, Acetone, O3


GEOS-Chem is a global 3-D chemical transport model (CTM) for atmospheric composition driven by meteorological input from the Goddard Earth Observing System (GEOS) of the NASA Global Modeling and Assimilation Office. This dataset contains gridded global monthly averages of methane, ethane, carbon monoxide, acetone, and ozone.

Data access

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Additional information

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Related projects
Spatial Type grid
Frequency monthly
Language English
GCMD Science Keywords Expand keywords
Related links

Temporal coverage

Begin datetime 2009-01-01 00:00:00
End datetime 2011-09-30 23:59:59

Spatial coverage

Map data from IBCSO, IBCAO, and Global Topography.

Maximum (North) Latitude: 89.50, Minimum (South) Latitude: -89.50
Minimum (West) Longitude: -180.00, Maximum (East) Longitude: 177.50

Primary point of contact information

EOL Data Support <>

Additional contact information


Example citation following ESIP guidelines:

Harvard University. 2013. GEOS-CHEM global 3-D chemical transport model (CTM) - CH4, C2H6, CO, Acetone, O3. Version 1.0. UCAR/NCAR - Earth Observing Laboratory. Accessed 20 Jan 2022.

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This dataset does not have a DOI. If you plan to cite this dataset, please email us to request a DOI, which will improve the searchability and cross-referencing of the citation.

Ancillary information

Metadata download

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