On ratio between the specular and bragg components scattered by the quasi-gaussian sea surface

1Zapevalov, AS, 2Pokazeev, KV, 1Pustovoitenko, VV
1Marine Hydrophysical Institute of the National Academy of Sciences of Ukraine, Sevastopol, AR Crimea, Ukraine
2Lomonosov Moscow State University, Moscow, Russia
Kosm. nauka tehnol. 2006, 12 ;(5-6):023-029
https://doi.org/10.15407/knit2006.05.023
Publication Language: Russian
Abstract: 
The ratio between the specular and Bragg components in the reflected radio signal is analysed on the basis of well-known models for scattering and measurement data of sea surface slopes. The measurements were carried out from the Black Sea oceanographic platform with the use of a 2D-slope meter. It is shown that when radiosounding the sea surface, sea surface slope distribution deviation from the Gaussian distribution appear mainly at radio-wave incidence of up to 15°. Taking into account the quasi-Gaussian character of slope distribution leads to a change in the incidence domain, in which the specular component dominates the Bragg component by 1...2".
Keywords: 2D-slope meter, radiosounding, specular and bragg components
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