Kuwait oil spill 1991
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In 1991, Landsat grabbed the devastating environmental consequences of war. As Iraqi causes withdrew from Kuwait, they set fire to over 650 oil wells and destroyed nearly 75 even more, which then spewed crude oil throughout the wilderness and to the Persian Gulf.
Fires burned for ten months. Based on a 2009 study posted in tragedy protection and control, firefighting crews from ten nations, part of an answer group that comprised more or less 11, 450 employees from 38 nations, used familiar also never-before-tested technologies to put out of the fires. Once the last one had been extinguished in November, about 300 ponds of oil remained, plus a layer of soot and oil that fell out of the sky and blended with sand and gravel to create 'tarcrete' across 5 per cent of Kuwait's landscape.
Crisis responders and boffins in Kuwait used Landsat also satellite data to locate and monitor the plumes of smoke and burning wells. The three images above from Landsat 5's Thermal Mapper tv show Kuwait in August 1990 before the fires, June 1991 although the fires had been burning, and January 1992, 2 months following the last fires were put out. Within 3-band composite (7-4-2), Landsat-5’s shortwave infrared band (musical organization 7) effortlessly detected the flames burning up at over 1300°F (700-800°C). The fires had been therefore hot that the detectors overloaded temporarily, switching the saturated purple dots into saturated lines visible in the June 1991 image.
Subsequent studies made use of Landsat to consider the before and after results of the fires and to monitor the changes into the oil ponds within the last 22 many years. The ponds tend to be visible into the 1992 image all over section of the former fires.
Approximately someone to 1.5 billion drums of oil were released in to the environment. After most burned, 25 to 40 million barrels wound up spread over the desert and 11 million barrels in the Persian Gulf, relating to a 2012 paper published in Remote Sensing of Environment. For comparison, the 2010 Deepwater Horizon spill to the gulf coast of florida is estimated to possess circulated almost 5 million barrels of oil. Kuwait's landscape has actually recovered significantly. Cleanup attempts have eliminated 21 million barrels of oil from the desert, but an estimated 1 million drums nonetheless remain.
NASA and also the U.S. division of the Indoor through U.S. Geological study (USGS) jointly manage Landsat, as well as the USGS preserves a 40-year archive of Landsat images that's freely readily available online. Next Landsat satellite, now-known because the Landsat Data Continuity Mission (LDCM) and later is known as Landsat 8, is scheduled for launch in 2013.
Relevant LinksEllen Gray
NASA's World Science News Team