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Satellite-based measurements of CO2 for carbon flux estimation

2002; SPIE; Volume: 4539; Linguagem: Inglês

1996-756X

TA Russell, William Sharp, Berrien Moore, P. J. Rayner, Inez Fung, Donald J. Wuebbles, Niklas Zimmer, Todd Summers, Katherine H. Chambers, Michael E. Dobbs, Clara J. Lietzke, John H. Zimmerman, M. C. Abrams,

Atmospheric Ozone and Climate

Satellite observations of atmospheric CO are the key to answering important questions regarding spatial and temporal variabilities of carbon sources and sinks. Global measurements sampling the air above land and oceans allow oceanic flux to be distinguished from terrestrial flux. Continuous sampling on frequent basis allows seasonal variations to be distinguished. This study quantifies the potential value of satellite-based measurements of column-integrated CO concentrations in terms of the carbon source/sink information that can be derived from these concentrations via inverse modeling. We discuss the utility of the carbon flux inversions in terms of both spatial and temporal resolution, compare capabilities of active and passive approaches to the measurements, and demonstrate the feasibility of high precision CO column concentration retrievals. 2 2 2