Title :
Experimental investigation of Doppler spectra of microwave signals backscattered by sea slicks
Author :
Kanevsky, M.B. ; Ermakov, S.A. ; Zuikova, E.M. ; Karaev, Yu V. ; Goldblat, Yu V. ; Sergievskaya, I.A. ; Shchegolkov, Y.B. ; Scott, J.C. ; Stapleton, N.
Author_Institution :
Inst. of Appl. Phys., Acad. of Sci., Nizhny Novgorod, Russia
Abstract :
Doppler spectra obtained using an X-band radar have been used to study artificial slicks. The radar was deployed on a platform in the Black Sea to image slicks which were artificially laid in the sea nearby. The radar viewed the slicks at about an angle of 20° incidence. The Doppler spectra obtained from slick covered regions showed strong shifts of the mean Doppler return towards higher frequencies compared with that obtained from non-slick areas. The change in Doppler spectra can be explained if the relative contributions to the radar backscatter from Bragg and specular scatterers changes in the slick covered areas compared with that in non-slick areas. The experimental results are found to be in good agreement with theoretical predictions
Keywords :
Doppler radar; backscatter; oceanographic techniques; radar cross-sections; remote sensing by radar; water pollution measurement; Black Sea; Bragg scatterer; Doppler return; Doppler spectra; SHF; X-band; artificial slick; backscatter; chemical composition; measurement technique; microwave radar; ocean; oil pollution; oil slick; organic film; radar remote sensing; radar scattering; sea slick; sea surface; specular scatterer; Backscatter; Damping; Doppler radar; Radar detection; Radar imaging; Radar scattering; Satellites; Sea measurements; Sea surface; Spaceborne radar;
Conference_Titel :
Geoscience and Remote Sensing, 1997. IGARSS '97. Remote Sensing - A Scientific Vision for Sustainable Development., 1997 IEEE International
Print_ISBN :
0-7803-3836-7
DOI :
10.1109/IGARSS.1997.608931
