ESA Frascati 31 Oct 2014 [email protected]1 Determination of the light availability in ocean water utilizing Vibrational Raman Scattering Tilman Dinter V. Rozanov, J.P. Burrows, Astrid Bracher ESA Frascati 31 st Oct 2014 Phytooptics Group Dinter et al. submitted
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ESA Frascati 31 Oct [email protected] 1 Determination of the light availability in ocean water utilizing Vibrational Raman Scattering.
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• Transspectral processes causes filling in of absorption or FRAUNHOFER-lines
• More photons are shifted into than out of the lines• I-: original ; I+: after filling in process• Defining pseudo-absorber like in DOAS-method after BEER-
Vibrational Raman Scattering in liquid waterModeled with SCIATRAN
• Transspectral processes causes filling in of absorption or FRAUNHOFER-lines
• More photons are shifted into than out of the lines• I-: original ; I+: after filling in process• Defining pseudo-absorber like in DOAS-method after BEER-
Clear Rayleigh, Ozone Atmosphere Reference solar zenith angle 40° Ocean:
500m homogeneous mixed water body, black albedo Surface: Cox & Munk (1954) approx. (wind speed 4.1 m/s) Standard chl-a CASE-I water model (Morel et al. (1991) and
Prieur & Sathyendranath (1981)) for absorption Molecular (Rayleigh) scattering by Buiteveld et al. (1994) Particle scattering based on bi-modal distribution model of
Kopelevich (1983) Conc. of small and large particles are determined by one