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SAR signatures of oceanic internal waves in the Barents Sea

Igor Kozlov(1)

(1) Russian state hydrometeorological university, Malookhtinsky pr., 98, 195196 Saint-Petersburg, Russian Federation

Abstract

In this work a reanalysis of oceanic internal waves (IWs) manifestations in the Barents Sea on ALMAZ-1 SAR image in HH-polarization S-band is presented. Dependences between IW manifestations on SAR image and wind speed, wind direction, surface waves direction, thermocline depth were investigated. Obtained quantative IW characteristics in S-band were compared with those from Envisat ASAR in C-band. Then to estimate an impact of Bragg and non-Bragg scattering on IW SAR signatures formation a simulation in Radar Imaging Model (RIM) was made. Finaly a conclusion is drawn that it is necessary and very important to take into account non-Bragg scattering especially in HH-polarization for IW determination.

 

Workshop poster

Keywords: ESA European Space Agency - Agence spatiale europeenne, observation de la terre, earth observation, satellite remote sensing, teledetection, geophysique, altimetrie, radar, chimique atmospherique, geophysics, altimetry, radar, atmospheric chemistry