Seminar on Physics and Chemistry of the Atmosphere (Abstract)
Analysis of tropospheric observations from GOME and TOMS
Randall Vaughn Martin
Harvard University, Cambridge
12.4.2002, 13.00 c.t.
Observations of nitrogen dioxide from GOME and tropospheric ozone from TOMS are compared with simulations using a global model of tropospheric chemistry and in-situ observations. Accounting for atmospheric scattering is important for interpretation of observations from both instruments. GOME observations show promise for estimating global NOx emissions from surface sources, despite retrieval complications from clouds. Lightning and transport in a global model largely account for the persistent wave-1 in tropical tropospheric ozone columns observed by TOMS, exhibited by a maxima over the tropical Atlantic and minima over the tropical Pacific during all seasons.