March 13, 2022 - Sediment in the Río de la Plata
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On March 8, 2022. The Moderate Resolution Imaging Spectroradiometer
(MODIS) on board NASA’s Aqua satellite acquired a true-color image of
muddy water pouring into the Río de la Plata, a funnel-shaped estuary
that sits between Uruguay (north) and Argentina (south) and connects
with the South Atlantic Ocean. The silt-laden Paranà River separates
into multiple channels as it courses through the large labyrinth of
trees and marsh known as the Paranà River Delta. The Paranà River
carries most of the sediment into the Río de la Plata, and also
provides about three-quarters of the fresh water that flows into the
estuary. Topsoil running off agricultural fields and flowing into the
Paranà as a result of rainstorms likely produced the heavy load of
brown sediment carried by this river.
The other major river feeding Río de la Plata is the Uruguay River,
which can be seen flowing from the north, carrying very little
sediment. The large area of gray sitting on the southern coast of the
Río de la Plata marks the city of Buenos Aires, the capital and largest
city of Argentina.
Image Facts
Satellite: Aqua
Date Acquired: 3/8/2022
Resolutions: 1km (38 KB), 500m (573.8 KB), 250m (573.8 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=2022-03-13
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