Mapping Oil Spills in the Asian Seas Using Sar Imagery and Gis
نویسنده
چکیده
ABSTRACT: GIS can significantly contribute to correct interpretation of the signatures of slicks visible on synthetic aperture radar (SAR) images, providing a basis for analysis. Proposed geoinformation approach to oil spill mapping is presented. It includes integration of the geographical, remote sensing, oil & gas infrastructure data and slick signatures, detected in SAR images, in GIS. Various information can be retrieved from such system: GIS can predict locations of spills, link oil spills and offshore/onshore sources and can be used to estimate the origin, number, area and intensity of oil pollution. GIS can be compiled from data of several sources including nautical maps, geographic databases, ground truth data and remote sensing imagery. It has to include both geographical information about coastline, bathymetry, currents, coastal hydrography, seepages and data about locations of oil fields, lease blocks, wells, platforms, pipelines, terminals, harbors, ship lanes, etc. Combination of remote sensing and GIS technologies can significantly improve managing oil spills and allows making the final products – oil spill distribution maps. Analysis of presented oil spill distribution maps shows that main oil pollution in the Asian seas is due to intensive fishery and shipping including oil transportation.
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