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Characterization of oil pollution around the oil rocks production site in the Caspian Sea using spaceborne polarimetric SAR imagery |
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| Authors: | A Yu Ivanov M Yu Dostovalov A A Sineva |
| Institution: | 1. P.P. Shirshov Institute of Oceanology, Russian Academy of Sciences, Moscow, Russia 2. Research Institute of Precision Instruments, Moscow, Russia 3. Moscow Institute of Physics and Technology, Dolgoprudny, Moscow Region, Russia |
| Abstract: | Based on the processing and analysis of radar imagery received by the Radarsat-2 satellite in summer 2009 over the Oil Rocks (Neftyanyye Kamni or Neft Dashlari) oil production site in the Caspian Sea, it is shown that the images are full-fledged products, making it possible to retrieve information on the oil pollution and, under certain assumptions, estimate volumes of industrial oil spills. To map the space-time distribution of oil patches, the wide-swath mode of the Radarsat-2 synthetic aperture radar (SAR) with vertical VV polarization of signal is most suitable. The polarimetric regime itself does not improve the identification of oil pollution. The special quad-polarization mode in these experiments has not showed substantial advantages; the maximum contrasts were observed at vertical polarization. Estimates of oil spills volumes are obtained. |
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