München 2004 – scientific programme

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UP: Umweltphysik

UP 12: Poster: Satelliten und Anwendungen

UP 12.3: Poster

Tuesday, March 23, 2004, 14:00–16:00, Schellingstr. 3

Tropospheric Ozone in the Tropics measured with GOME and SCIAMACHY and compared with O3-SHADOZ-Sondes-data — •Annette Ladstaetter-Weissenmayer, Christian v. Savigny, John P. Burrows, and Valentine Jalaosha — Institut fuer Umweltphysik Bremen

The Global Ozone Monitoring Experiment (GOME) launched in April 1995 in is measuring the sunlight back scattered by the surface in nadir viewing mode (240-790 nm) to detect O3, NO2, BrO, OClO, HCHO and SO2. SCIAMACHY (Scanning Imaging Absorption Spectrometer for Atmospheric ChartographY)launched in March 2002 is measuring sunlight, transmitted, reflected and scattered by the earth atmosphere or surface (240 nm - 2380 nm). SCIAMACHY measurements yield the amounts and distribution of O3, BrO, OClO, ClO, SO2, H2CO, NO2, CO, CO2, CH4, H2O, N2O, p, T, aerosol, radiation, cloud cover and cloud top height in limb and nadir mode. In the tropics biomass burning is extensive every year. During these burning events large amounts of aerosols and trace gases like nitrogen oxide NO, hydrocarbons, formaldehyde (HCHO) and carbon monoxide (CO) are emitted into the troposphere. In photochemical reactions tropospheric O3 is produced. GOME- and SCIAMACHY-data were analysed to observe an increasing of this trace gas during fire events and to compare then these results with the data of O3-SHADOZ-sondes to validate the retrieval method.