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Progress in Atmospheric Carbon Monitoring Using NASA's GEOS Model and Data from the OCO and GOSAT MissionsNASA's Global Modeling and Assimilation Office (GMAO) produces a variety of carbon products based the synthesis of satellite remote sensing data and outputs of the Goddard Earth Observing System (GEOS). This includes bottom-up surface fluxes due to fossil fuel emissions, biomass burning, terrestrial biospheric exchange, and ocean exchangeconstrained by measurements of nighttime lights, fire radiative power, normalized difference vegetation index, and ocean color. These fluxes are the basis of top-down estimates of carbon concentrations and fluxes. In particular, the GMAO system processes retrievals of column carbon dioxide (XCO2) from GOSAT and OCO-2 to produce a high-resolution, long-term global analysis of CO2 in three dimensions every 6 hours. Here, we discuss the potential applications of such products for satellite intercomparison and evaluation against independent, non-coincident data. We also highlight the ability to provide monthly global atmospheric growth rates inferred from the assimilated CO2 concentration product. Finally, we discuss the challenges facing such products including bias correction and the estimation and analysis of model transport errors.
Document ID
20190026732
Acquisition Source
Goddard Space Flight Center
Document Type
Poster
Authors
Weir, B.
(Universities Space Research Association (USRA) Greenbelt, MD, United States)
Ott, L.
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Chatterjee, A.
(Universities Space Research Association (USRA) Greenbelt, MD, United States)
Oda, T.
(Universities Space Research Association (USRA) Greenbelt, MD, United States)
Pawson, S.
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Date Acquired
June 27, 2019
Publication Date
June 3, 2019
Subject Category
Geosciences (General)
Report/Patent Number
GSFC-E-DAA-TN70198
Meeting Information
Meeting: International Workshop on Greenhouse Gas Measurements from Space (IWGGMS-15)
Location: Sapporo
Country: Japan
Start Date: June 3, 2019
End Date: June 5, 2019
Sponsors: Japan Aerospace Exploration Agency (JAXA)
Funding Number(s)
CONTRACT_GRANT: NNG11HP16A
Distribution Limits
Public
Copyright
Public Use Permitted.
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