April 7, 2023 - Flooding in Brazil

[image04072023_main.jpg] [image04072023_dec252022.jpg]

April 5, 2023 December 25, 2022
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Extreme rains fell across northwestern Brazil in late March 2023,
causing flooding and triggering landslides. The torrential rain brought
at least 203 millimeters (8 inches) of rain in just three days to Rio
Branco, the capital of the Acre state. That’s 75 percent of the
rainfall expected in that area over the entire month of March.

According to ReliefWeb, as of March 30 about 15,000 people had been
displaced, and numerous homes and roads damaged. At least 172 of the
homes were destroyed in Manaus, the capital of the state of Amazonas.
The Negro and Solimões rivers meet just east of Manaus and join to form
the Amazon River. The Solimões River is also sometimes called the upper
Amazon River.

The Moderate Resolution Imaging Spectroradiometer (MODIS) on board
NASA’s Terra satellite acquired a false-color image centered on
Amazonas, Brazil on April 5, 2023, and a second false-color image of
the same area on December 25, 2022. Clicking on the dates under the
image will permit toggling back and forth between the two images, and
allow a comparison of the dramatic changes in the rivers of the region,
including the large Amazon River, between the two dates.

This type of false-color image, which uses MODIS bands 7, 2, and 1, is
often used to help separate water from surrounding vegetation or open
land. Water appears blue, vegetation is green, and open land is tan.
Clouds usually appear white, although high, cold clouds may carry a
tint of bright blue. The town of Coari sits near the center of this
image, close to where the bright blue waters of the Amazon River dips
southward. The darker water near that location are all flooded lakes.

Although the clouds were nearly-cloud free on April 5, when the most
recent image was acquired, thunderstorms are forecast from April 8-20.

Image Facts
Satellite: Terra
Date Acquired: 4/5/2023
Resolutions: 1km (284 KB), 500m (773.8 KB), 250m (475.1 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=2023-04-07

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