Application of the Spectral Structure Parameterization technique: retrieval of total water vapor columns from GOMEReportar como inadecuado




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1 FOM-Institute for Atomic and Molecular Physics 2 SRON - SRON Netherlands Institute for Space Research 3 Department of Physics and Astronomy

Abstract : We use a recently proposed spectral sampling technique for measurements of atmospheric transmissions called the Spectral Structure Parameterization SSP in order to retrieve total water vapor columns WVC from reflectivity spectra measured by the Global Ozone Monitoring Experiment GOME. SSP provides a good compromise between efficiency and speed when performing retrievals on highly structured spectra of narrow-band absorbers like water vapor. We show that SSP can be implemented in a radiative transfer scheme which treats both direct-path absorption and absorption by singly scattered light directly. For the retrieval we exploit a ro-vibrational overtone band of water vapor located in the visible around 590 nm. We compare our results to independent values given by the data assimilation model of ECMWF. In addition, results are compared to those obtained from the more accurate, but slower, Optical Absorption Coefficient Spectroscopy OACS.





Autor: R. Lang - J. E. Williams - W. J. Van Der Zande - A. N. Maurellis -

Fuente: https://hal.archives-ouvertes.fr/



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