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NASA releases images of before and after Kerala flood

By Chennabasaveshwar
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    NASA, Aug 28: The National Aeronautics and Space Administration (NASA) has released images of before and after Kerala flood. "Once-in-a-century" flood that displaced nearly a million people, caused hundreds of fatalities, and washed away homes. The region started receiving heavy rain on August 8, 2018, but news reports state that the flooding was worsened by releases from dams.

    NASA releases images of before and after Kerala flood

    The Operational Land Imager (OLI) on the Landsat 8 satellite acquired the image (bands 6-5-3) on February 6, 2018, before the flood.

    Also Read | 'Operation Madad' rescued nearly 17,000 people in flood hit Kerala

    The Multispectral Instrument on the European Space Agency's Sentinel-2 satellite acquired this image (bands 11-8-3) on August 22, 2018, after flood water had inundated the area. The images are false-color, which makes flood water appear dark blue. Vegetation is bright green.

    NASA releases images of before and after Kerala flood

    Also Read | Flood ravaged Kerala would have to wait long for central aid, here is why

    Several rivers throughout the region spilled over their banks. Water from the Karuvannur River ran through 40 villages, and washed away a 2.2 kilometer (1.4 mile) stretch of land connecting two national highways. Elevated water levels along the Periyar River displaced thousands of people.

    (NASA Earth Observatory images by Lauren Dauphin, using modified Copernicus Sentinel data (2018) processed by the European Space Agency and Landsat data from the U.S. Geological Survey).

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