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Berlin 2005 – wissenschaftliches Programm

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UP: Umweltphysik

UP 9: Poster: Atmosph
äre und Klima

UP 9.2: Poster

Dienstag, 8. März 2005, 10:15–12:15, Poster TU HTF

Water Vapour Retrieval from SCIAMACHY Nadir Data — •Stefan Noël, Michael Buchwitz, John P. Burrows, and Heinrich Bovensmann — Institute of Environmental Physics/Remote Sensing, University of Bremen, Germany

Measurements of the SCanning Imaging Absorption spectroMeter for Atmospheric CHartographY (SCIAMACHY) on-board the European environmental satellite ENVISAT have been used to derive water vapour total column amounts on the global scale.

For this purpose, the Air Mass Corrected Differential Absorption Spectroscopy (AMC-DOAS) approach has been applied to SCIAMACHY’s nadir measurements in the spectral region around 700 nm.

Previous investigations already showed a good agreement of the water vapour columns derived from SCIAMACHY with correlative data from e. g. the Special Sensor Microwave Imager (SSM/I) and from the European Centre for Medium-Range Weather Forecasts (ECMWF).

However, these investigations were based on a limited set of SCIAMACHY data. Meanwhile, the AMC-DOAS retrieval method has been applied to a larger amount of data. This presentation will show results of an extended comparison between SCIAMACHY water vapour columns and other satellite and model data.

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