18 Mar '12, 10pm

Paraná River Floodplain, Brazil: Merging rivers paint the landscape with muddy sediment. #ImagenDeLaTierra

Near the Mato Grosso–Saõ Paulo border in Brazil, the Paraná River appears as a wide, blue strip with the muddy brown water of the smaller Verde River entering from the northwest (top left). An extensive wetland (dark green) occupies most of the left half of this astronaut photograph, and the floodplain reaches a width of 11 kilometers (about 7 miles). The thin line of a road crossing the floodplain also gives a sense of scale. Above the Paraná–Verde confluence (image center), the floodplain is much narrower. The floodplain is generated by sediments delivered by both rivers. The evidence for this is that the entire surface is crisscrossed by the wider traces of former Paraná River channels, as well as numerous narrower traces of the Verde. The floodplains along both rivers are bordered by numerous rectangular agricultural fields. The dominant crops along this part of the Pa...

Full article: http://earthobservatory.nasa.gov/IOTD/view.php?id=77444&s...

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NASA Earth Observato Paraná River Floodplain, B...

earthobservatory.nasa.gov 18 Mar '12, 10pm

Near the Mato Grosso–Saõ Paulo border in Brazil, the Paraná River appears as a wide, blue strip with the muddy brown water...

Paraná River Floodplain, Brazil [image] #NASA

earthobservatory.nasa.gov 18 Mar '12, 10pm

Near the Mato Grosso–Saõ Paulo border in Brazil, the Paraná River appears as a wide, blue strip with the muddy brown water...

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