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FP5

THALOZ Report Summary

Project ID: EVK2-CT-2001-00104
Funded under: FP5-EESD
Country: Germany

Atmospheric measurements (satellite): inelastic scattering in ocean water and its impact on trace gas retrievals from satellite data

Over clear ocean waters, photons scattered within the water body contribute significantly to the up-welling flux. In addition to elastic scattering, inelastic Vibrational Raman Scattering (VRS) by liquid water is also playing a role and can have a strong impact on the spectral distribution of the outgoing radiance. Under clear-sky conditions, VRS has an influence on trace gas retrievals from space-borne measurements of the backscattered radiance such as from e.g. GOME (Global Ozone Monitoring Experiment). The effect is particularly important for geo-locations with small solar zenith angles and over waters with low chlorophyll concentration.

Vountas, M., A. Richter, F. Wittrock, and J. P. Burrows, Inelastic scattering in ocean water and its impact on trace gas retrievals from satellite data, Atmos. Chem. Phys., 3, 1365-1375, 2003.

Reported by

Institute of Environmental Physics and Remote Sensing IUP/IFE, UNIVERSITAET BREMEN
Postfach 330440
28334 BREMEN
Germany
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