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Jena 2013 – wissenschaftliches Programm

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UP: Fachverband Umweltphysik

UP 4: Postersession

UP 4.19: Poster

Dienstag, 26. Februar 2013, 17:15–18:30, Poster EG

Retrieval of tropospheric ozone columns from SCIAMACHY limb-nadir matching observationsFelix Ebojie1, Christian von Savigny1,2, •Annette Ladstätter-Weissenmayer1, Alexei Rozanov1, Mark Weber1, Stefan Bötel1, Heinrich Bovensmann1, and John Burrows11Institute of Environmental Physics (IUP), University of Bremen, P.O. Box 330440, D-28334 Bremen, Germany — 2Institut für Physik , Felix-Hausdorff-Str. 6, Ernst-Moritz-Arndt-Universität Greifswald 17487 Greifswald

Satellite observations of tropospheric ozone are of critical importance in obtaining a global and more thorough knowledge of the phenomena affecting air quality. Tropospheric ozone has a significant adverse effect on the climate system. In the lower troposphere, during summer, it is a major constituent of photochemical smog and excess of it is toxic to the ecosystem, animal and man. It is equally known as a major oxidant and also involved in the production of other oxidants such as hydroxyl (OH) radicals. In the middle and upper troposphere, ozone acts as a greenhouse gas. The retrieval of tropospheric ozone from UV/VIS/NIR satellite spectrometer such as the Scanning Imaging Absorption spectroMeter for Atmospheric CHartographY (SCIAMACHY) instrument onboard the ESA satellite Envisat is difficult because only about 10 % of the Total Ozone Column (TOC) is in the troposphere. In this analysis we present the retrieval of tropospheric ozone columns from SCIAMACHY limb-nadir matching observations.

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