September 23, 2022 - Pakistan Floods

Pakistan
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Today’s Image of the Day compares two false-color images of the Indus
River and adjacent floodplain in the Sindh province of Pakistan that
were acquired by the Moderate Resolution Imaging Spectroradiometer
(MODIS) on NASA’s Terra satellite. The top image was acquired on
September 22, 2022, and the bottom image on August 28.

Extreme flooding is obvious in both images, but the comparison shows
that some—but far from all—of the recent disastrous flooding has begun
to recede. According to the United Nations (UN), on September 20
millions of people in Pakistan are still deeply affected by
catastrophic flooding, which “is not going anywhere”. It is expected to
take six months for the waters to fully recede.

It is estimated that nearly eight million people have been displaced by
monsoonal flooding in Pakistan, which began as early as June. To date,
more than 1,500 people have been killed, including 552 children,
according to the UN. As often happens after disasters, illness and
disease have begun to spread through displaced communities, including
cerebral malaria, the most severe form of the disease which is often
fatal. Malaria is caused by a parasite that is carried by mosquitoes,
which thrive in standing waters after flooding.

This type of false-color image uses infrared and visible light (MODIS
bands 7,2,1) to help distinguish water from land. Water appears various
shades of blue, depending on depth and any sediment in the water, with
the deepest water looking the darkest. Vegetation looks bright green
while open or sparsely vegetated land looks tan. Cloud ranges from
white to electric blue.

Image Facts
Satellite: Terra
Date Acquired: 9/22/2022
Resolutions: 1km (223.7 KB), 500m (574.7 KB), 250m (333.1
KB)
Bands Used: 1,4,3
Image Credit: MODIS Land Rapid Response Team, NASA GSFC



https://modis.gsfc.nasa.gov/gallery/individual.php?db_date=2022-09-23

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