Atmospheric Chemistry and Physics Discussions www.atmos-chem-phys-discuss.net 1680-7367 1680-7375 8 6 2008 10.5194/acpd-8-19201-2008 http://www.atmos-chem-phys-discuss.net/8/19201/2008/ http://www.atmos-chem-phys-discuss.net/8/19201/2008/acpd-8-19201-2008.html http://www.atmos-chem-phys-discuss.net/8/19201/2008/acpd-8-19201-2008.pdf 19201 19247 2008-11-14 Identifying convective transport of carbon monoxide by comparing remotely sensed observations from TES with cloud modeling simulations J. J. Halland H. E. Fuelberg fuelberg@met.fsu.edu K. E. Pickering M. Luo Department of Meteorology, Florida State University, Tallahassee, Florida USA NASA Goddard Space Flight Center, Greenbelt, Maryland USA Jet Propulsion Laboratory, Pasadena, California USA Understanding the mechanisms that transport pollutants from the surface to the free atmosphere is important for determining the atmosphere's chemical composition. This study quantifies the vertical transport of tropospheric carbon monoxide (CO) by deep mesoscale convective systems and assesses the ability of the satellite-borne Tropospheric Emission Spectrometer (TES) to detect the resulting enhanced CO in the upper atmosphere. A squall line that is similar to one occurring during NASA's INTEX-B mission is simulated using a typical environmental wind shear profile and the 2-D Goddard Cumulus Ensemble model. The simulation provides post-convection CO profiles. The structure of the simulated squall line is examined, and its vertical transport of CO is quantified. Then, TES' ability to resolve the convectively modified CO distribution is documented using a "clear-sky" retrieval scheme. Results show that the simulated squall line transports the greatest mass of CO in the upper levels, with a value of 96 t upward and 67 t downward at 300 hPa. 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