One person's noise another person's signal: Can COS be utilized as CO2 tracer?

Speaker: Dan Yakir, Weizmann Institute of Science, Israel

When: Wednesday, September 12, 2012, 3:30 p.m. Mountain Time
Location: Room 2A305, DSRC (NOAA Building), 325 Broadway, Boulder
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Carbonyl sulfide (COS) is a major precursor of sulfur aerosols in the stratosphere. Its global budget, and the main sinks and sources have been extensively investigated by atmospheric chemists. In recent years, the large seasonal cycle in the atmospheric concentrations of COS, and its relationship to that in CO2, were evoked as indication of the potential use of COS as a tracer of CO2 fluxes into the land biosphere. This idea and the underlying processes will be introduced, and recent advances in developing the COS/CO2 approach will be outlined.