These two NASA images captured one year apart show the extent of the flooding in Pakistan. The Moderate Resolution Imaging Spectroradiometer (MODIS) on NASA's Terra satellite captured these images on August 1, 2009 (top) and July 31, 2010 (bottom). These images show the Indus River in northwestern Pakistan. Both images use a combination of infrared and visible light to increase the contrast between water and land
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