El Nino Fueled Rains Swamp South America
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- Visualizations by:
- Lori Perkins
- View full credits
Since the middle of 2015, meteorologists have warned that El Niño could bring unusually wet weather to Paraguay, Uruguay, Argentina, and southern Brazil. The first image shows a view of this region before the flood and the second is after the December/January El Nino rains swamped this part of South America.
Since the middle of 2015, meteorologists have warned that El Niño could bring unusually wet weather to Paraguay, Uruguay, Argentina, and southern Brazil. The warnings have proven to be prescient.
In December and January, heavy summer rains swamped this part of South America causing the Uruguay, Paraguay and Paraná rivers to swell beyond flood stage. As of January 15, 2016, floods had displaced more than 150,000 people in what some observers are calling the worst floods to affect the region in decades.
Paraguay has been hit the hardest. More than 100,000 people have been evacuated, mostly from Asunción, the capital city. Many of these people are now living in temporary shelters throughout the city. Some of the hardest hit neighborhoods were Los Baños and Bañado Norte, both of which are located along the river.
On January 7, water levels in Asunción rose as high as 7.84 meters (25.72 feet). Authorities issue flood warning when water reaches 4.5 meters. By the time the Advanced Land Imager (ALI) acquired this image on January 12, 2016, waters had dropped to 7.6 meters, still well above flood stage. For comparison, the lower image shows the same area on January 12, 2014, when water levels were more typical.
Even as waters subside, public health threats will persist. In January, Paraguay’s Ministry of Public Health and Social Welfare declared an alert for Dengue, Chikungunya and Zika, viral diseases spread by mosquitoes.
Other NASA satellites, Aqua and Terra, carry sensors that collect data that can be used to produce near real-time flood maps.
In December and January, heavy summer rains swamped this part of South America causing the Uruguay, Paraguay and Paraná rivers to swell beyond flood stage. As of January 15, 2016, floods had displaced more than 150,000 people in what some observers are calling the worst floods to affect the region in decades.
Paraguay has been hit the hardest. More than 100,000 people have been evacuated, mostly from Asunción, the capital city. Many of these people are now living in temporary shelters throughout the city. Some of the hardest hit neighborhoods were Los Baños and Bañado Norte, both of which are located along the river.
On January 7, water levels in Asunción rose as high as 7.84 meters (25.72 feet). Authorities issue flood warning when water reaches 4.5 meters. By the time the Advanced Land Imager (ALI) acquired this image on January 12, 2016, waters had dropped to 7.6 meters, still well above flood stage. For comparison, the lower image shows the same area on January 12, 2014, when water levels were more typical.
Even as waters subside, public health threats will persist. In January, Paraguay’s Ministry of Public Health and Social Welfare declared an alert for Dengue, Chikungunya and Zika, viral diseases spread by mosquitoes.
Other NASA satellites, Aqua and Terra, carry sensors that collect data that can be used to produce near real-time flood maps.
Credits
Please give credit for this item to:
NASA's Scientific Visualization Studio
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Data visualizer
- Jesse Allen (SSAI)
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Visualizer
- Lori Perkins (NASA/GSFC) [Lead]
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Writer
- Adam P. Voiland (SSAI)
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Technical support
- Ian Jones (ADNET Systems, Inc.)
- Laurence Schuler (ADNET Systems, Inc.)
Datasets used in this visualization
Landsat-8 True Color (A.K.A. Band Combination 2,3,4) (Collected with the OLI sensor)
Observed Data
Jan 12, 2016
EO-1 True Color (Collected with the ALI sensor)
Note: While we identify the data sets used in these visualizations, we do not store any further details, nor the data sets themselves on our site.
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