November 1, 2021 - Greening in Northwestern Nigeria
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Greening in Nigeria
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The rainy season in northern Nigeria runs from mid-May to September,
bringing much-needed water to the otherwise dry savannah grasslands and
filling local rivers. While southern Nigeria enjoys a longer and wetter
rainy season, the more moderate precipitation in the north means that
this is the season of planting the crops that will be harvested during
the dry season.
The Moderate Resolution Imaging Spectroradiometer (MODIS) on board
NASA’s Terra satellite acquired a true-color image of northwestern
Nigeria on October 22, 2021, a few weeks after the end of the rainy
season. The entire region is painted with a wash of green, particularly
next to the Nile River (west) and in the south, where precipitation was
highest.
While this single image allows a view of post-rain greening, to see the
change in landcover over time it is ideal to compare two different
images. Thanks to the NASA Worldview app, a roll-over comparison
between two Aqua MODIS images, one acquired on May 24 and the image
acquired on October 22, can be viewed here.
Image Facts
Satellite: Terra
Date Acquired: 10/22/2021
Resolutions: 1km (154.2 KB), 500m (450.8 KB), 250m (257.8
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=2021-11-01
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