The study of gravity-capillary spectra using microwave radiometric techniques

The paper presents the results of sea-surface microwave brightness measurements carried out on the Black Sea coast in 1999-2001. The sea-surface brightness temperature was measured as a function of the view angle at wind speed ranged from 0.5 to 7 m/s. The experiment was conducted from a pier in the South Department of the Shirshov Institute of Oceanology using microwave radiometers at wavelengths of 0.8 and 0.3 cm. For the first time, it was noted that brightness temperature followed wind speed with some delay. The gravity-capillary waves spectrum retrieved from the brightness temperature provided evidence that this delay may be explained by short wind waves.