September 22, 2020 - Flooding in Pakistan

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   Flooding in Pakistan
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   Torrential monsoonal rains brought devastating flooding to Pakistan in
   August and September 2020. According to media reports, by August 9
   three days of monsoonal rains had killed almost 50 people across the
   country and had damaged over 100 homes. On August 29, Reliefweb
   reported that the city of Karachi received the heaviest rain in a
   single day ever recorded in its history when 231 mm (9 inches) of rain
   fell in just 12 hours. That city received 484 mm (19 in) of rain during
   August 2020—the highest monthly rainfall on record for the last 90
   years. Pulses of severe rain have continued through late September,
   resulting in widespread, devastating flooding.

   Pakistan’s National Disaster Management Authority has published a
   monsoon damage report covering June 15 – September 21. Preliminary
   assessments tally damage to 13 roads, 10 bridges, 20 shops, 3 hotels, 5
   masjid (mosques), and 217,848 houses this season. 400 deaths and 392
   injuries have been counted. As of September 21, 196 relief camps were
   operation in the province of Sindh and were housing more than 23,600
   people. More than 11,000 people have been evacuated, along with 299
   people rescued by 10 boats in District Dadu by Armed Forces and
   District Administration. Fortunately, dry weather is forecast for the
   next several days.

   On September 20, 2020, the Moderate Resolution Imaging
   Spectroradiometer (MODIS) on board NASA’s Aqua satellite acquired a
   false-color image of flooding in Pakistan. This type of false-color
   image uses infrared and visible light (MODIS bands 7,2,1) to help
   differentiate water from vegetation or soil. Vegetation appears bright
   green, open soil appears tan, and water appears blue or inky-black.
   Clouds often appear tinged with electric blue. In this image, the
   twisted Indus River appears quite wide and water can be seen over the
   entire green flood plains. In some areas, especially at the edges of
   the flood plains, copious deep, dark water is easily visible.

   While a single image captures the flooding on a given date, when
   assessing the extent of damage and/or change it is often helpful to be
   able to compare two different dates. Thanks to the NASA Worldview app,
   a roll-over comparison of two images of the same scene, one captured on
   August 3 (before the record-setting rains fell) and this one, captured
   on September 20, can be seen  here.

   The NASA Worldview app provides a satellite's perspective of the planet
   as it looks today and as it has in the past through daily satellite
   images. Worldview is part of NASA’s Earth Observing System Data and
   Information System. EOSDIS makes the agency's large repository of data
   accessible and freely available to the public.

   Image Facts
   Satellite:  Aqua
   Date Acquired: 9/20/2020
   Resolutions:  1km (55.5 KB),  500m (201.4 KB),  250m (627.4
   KB)
   Bands Used: 7,2,1
   Image Credit: MODIS Land Rapid Response Team, NASA GSFC



https://modis.gsfc.nasa.gov/gallery/individual.php?db_date=2020-09-22
 
