Sovremennye problemy distantsionnogo zondirovaniya Zemli iz kosmosa, 2017, Vol. 14, No. 3, pp. 271-287
Simulation of rough sea surface microwave emission on the basis of experimental data
1 Space Research Institute RAS, Moscow, Russia
Accepted: 17.04.2017
DOI: 10.21046/2070-7401-2017-14-3-271-287
In this paper, the MiROSE model (Microwave Rough Ocean Surface Emission model) of microwave rough water surface emission is developed. This model is based on experimental studies of rough water surface emission at a frequency of 37.5 GHz (wavelength ~8 mm). Experimental data were obtained on the oceanographic platform in the Black Sea near the Katsiveli settlement. To develop the model, the data obtained during experiments in 2005 and 2007 were used. The 2009 experiment data were used to test the developed model. MiROSE represents the functional dependence of the wind speed sensitivity of brightness temperature on incidence angle, wind speed and temperature range. Using this model the brightness contrast and brightness temperature of rough water surface can be calculated. The model is applicable for water temperatures of 12.5 to 25°C, wind velocities of 3 to 13 m/s and incidence angles of 30 to 80 degrees from nadir. A comparison of MiROSE with other models of rough water surface emission in the microwave range is presented.
Keywords: remote sensing, brightness temperature, brightness contrast, modeling, radiometer, microwave emission, angle dependence of wind speed sensitivity, wind speed retrieval
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