Evolution of oil slick patterns as observed by SAR off the coast of Wales - An application of the MSSM feature tracking method.
Pablo Clemente-Colón, Xiao-Hai Yan, and W. Pichel
Abstract:
Data from three different Synthetic Aperture Radar (SAR) spaceborne
sensors were obtained over the coast of Wales, UK. These observations
indicated the persistence of slick features associated with the grounding
on February 15, 1996 of the Sea Empress tanker and the resulting massive
oil spill that followed. RADARSAT, ERS-1, and ERS-2 SAR images showed
the evolution of these features from February 22 to February 26, 1996.
The feature tracking Maximum Similarity Shape Matching method (MSSM)
developed at the University of Delaware College of Marine Studies (CMS)
was applied to the SAR images. Observations of the slick pattern
evolution in the SAR imagery were compared to available reports of ground
conditions. Drift speeds as high as 11 cm/s were calculated using MSSM.
Deformation of the slick features was also evident in the SAR data
throughout the five-day period.
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
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