Vibrational Raman scattering (VRS) by liquid water (ocean Raman
scattering) significantly contributes to the filling in of solar Fraunhofer
lines. This effect is observed in the UV/Vis wavelength region by
satellite-born instruments like GOME or SCIAMACHY.
A water ocean module which considers VRS in liquid water has been developed and implemented in an existing radiative transfer model (SCIATRAN). With the VRS reference spectra, calculated by the model, we are able to evaluate VRS spectral structures in satellite measurements via the DOAS-method.
It will be shown that there is a direct correlation between the intensity of vibrational Raman scattering and the chlorophyll concentration in ocean water. Comparisons between VRS DOAS evaluations of SCIAMACHY data and pictures from the SeaWiFS Project (Sea-viewing Wide Field-of-view Sensor), that shows global chlorophyll concentrations in the oceans, will be presented.
Additionally, first results of DOAS evaluations of chlorophyll absorption in
SCIAMACHY measurements will be shown.