Conference paper Open Access

The VIERS scatterometer algorithm

Janssen, J. A. M.; Calkoen, C. J.; van Halsema, D.; Jähne, Bernd; Janssen, P. A. E. M.; Oost, W. A.; Snoeij, P.; Vogelzang, J.; Wallbrink, H.

Various backscatter theories have been investigated in a tank experiment. A simple t.wo-scale model performed better than other more complicated models. In combination with an air-sea interaction module the two-scale model provides the physical basis for the present Viers scatterometer algorithm. A first test of the algorithm with ECMWF and ERS-1 data shows that the model σ0 values agree with those of the satellite. At low winds the algorithm performs better than the operational CMOD4.

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