Slicks in Campos Basin, Offshore Brazil - March 20, 2012

This Envisat ASAR radar satellite image of the Campos Basin, taken at 9:18 pm local time on March 20, shows what appear to be long, narrow slicks emanating from several Petrobras production platforms and FPSOs:

March 201, 2012 Envisat ASAR radar satellite image courtesy European Space Agency.

This is a complex image.  Platforms, FPSOs, drill rigs and vessels appear as bright spots on radar. The large, indistinct dark areas in the upper part of the image are also slicks, but not caused by oil (a "slick" is any patch of smooth water, appearing dark on a radar image). Instead, these patches are probably caused by areas of very low wind speed, and/or by heavy rainfall.  Sea-surface wind data, taken almost the same time as the radar image above, indicate there was unsettled stormy weather in the area. 

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