Monitoring of Crude Oil Spill off the West Coast of the Korean Peninsula Using Sar Images
نویسندگان
چکیده
The nation’s largest maritime oil spill occurred on the west coast of the Korean Peninsula on December 7, 2007. All civilian space-borne SAR sensors including TerraSAR-X, ENVISAT ASAR, RADARSAT-1, ERS-2 SAR, and ALOS PALSAR acquired imageries over the contaminated area. Dark patches observed in these SAR images revealed the presence of oil spills, and showed how wide the spilled area is and how fast they migrate. The damping ratios, the ratio of the normalized radar cross sections of a slick-free and a slick-covered sea surface, were calculated and analyzed from multifrequency SAR observations as function of wind speeds. With multi-temporal SAR images, the movement of oil spills was monitored and traced.
منابع مشابه
Oil spill detection using in Sentinel-1 satellite images based on Deep learning concepts
Awareness of the marine area is very important for crisis management in the event of an accident. Oil spills are one of the main threats to the marine and coastal environments and seriously affect the marine ecosystem and cause political and environmental concerns because it seriously affects the fragile marine and coastal ecosystem. The rate of discharge of pollutants and its related effects o...
متن کاملOn the Performance of Filters for Reduction of Speckle Noise in SAR Images off the Coast of the Gulf of Guinea
Synthetic Aperture Radar (SAR) imagery to monitor oil spills are some methods that have been proposed for the West African sub-region. With the increase in the number of oil exploration companies in Ghana (and her neighbors) and the rise in the coastal activities in the sub-region, there is the need for proper monitoring of the environmental impact of these socio-economic activities on the envi...
متن کاملDetection of Oil near Shorelines during the Deepwater Horizon Oil Spill Using Synthetic Aperture Radar (SAR)
During any marine oil spill, floating oil slicks that reach shorelines threaten a wide array of coastal habitats. To assess the presence of oil near shorelines during the Deepwater Horizon (DWH) oil spill, we scanned the library of Synthetic Aperture Radar (SAR) imagery collected during the event to determine which images intersected shorelines and appeared to contain oil. In total, 715 SAR ima...
متن کاملUsing Sar Images for Detection of a Surface Poleward Current off the West Coast of the Iberian Peninsula
The surface circulation off the western coast of the Iberian Peninsula is strongly influenced by the atmospheric pressure distribution in the North Atlantic. During the winter season, the combination of the onshore Ekman transport and the geostrophic adjustment of the large-scale oceanic zonal flow causes the appearance of a seasonal poleward along-shore flow named Navidad current. This surface...
متن کاملOcean Feature Monitoring with Wide Swath Synthetic Aperture Radar
y providing better spatial coverage, wide swath synthetic aperture radar (SAR) can offer a more complete picture of various mesoscale ocean features. With better temporal coverage, SAR also supplies crucial information for the tracking and monitoring of these features using, for instance, the technique of two-dimensional wavelet analysis. Examples presented in this article of fronts in the Gulf...
متن کامل