These satellite pictures show the effects of the catastrophic floods which have left up to 20 million people homeless in Pakistan. The images, taken with Nasa’s Aqua satellite, use a combination of infrared and invisible light to increase the contrast between water and land.
Water appears in varying shades of blue and clouds in blue-green, while vegetation is green and bare ground is pinkish-brown.
The extend of the flooding is particularly obvious in these images, taken on August 14, 2009 and August 15, 2010 which show visible swelling of the Indus and Jhelum Rivers.
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