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Technical Report Series on Global Modeling and Data AssimilationMERRA products were used to force an established ocean biogeochemical model to estimate surface carbon inventories and fluxes in the global oceans. The results were compared to public archives of in situ carbon data and estimates. The model exhibited skill for ocean dissolved inorganic carbon (DIC), partial pressure of ocean CO2 (pCO2) and air-sea fluxes (FCO2). The MERRA-forced model produced global mean differences of 0.02% (approximately 0.3 microns) for DIC, -0.3% (about -1.2 (micro) atm; model lower) for pCO2, and -2.3% (-0.003 mol C/sq m/y) for FCO2 compared to in situ estimates. Basin-scale distributions were significantly correlated with observations for all three variables (r=0.97, 0.76, and 0.73, P<0.05, respectively for DIC, pCO2, and FCO2). All major oceanographic basins were represented as sources to the atmosphere or sinks in agreement with in situ estimates. However, there were substantial basin-scale and local departures.
Document ID
20140001061
Acquisition Source
Goddard Space Flight Center
Document Type
Technical Memorandum (TM)
Authors
Gregg, Watson W.
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Casey, Nancy W.
(Science Systems and Applications, Inc. Lanham, MD, United States)
Rousseaux, Cecile S.
(Universities Space Research Association Greenbelt, MD, United States)
Date Acquired
March 6, 2014
Publication Date
March 1, 2013
Subject Category
Oceanography
Report/Patent Number
GSFC-E-DAA-TN8985
NASA/TM-2013-104606/VOL 31
Funding Number(s)
CONTRACT_GRANT: NNG12HP06C
CONTRACT_GRANT: NNG11HP16A
Distribution Limits
Public
Copyright
Public Use Permitted.
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