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Reservoirs on São Francisco River, Brazil

15.6S 47.8W

May 2nd, 2012 Category: Image of the day, Lakes, Rivers

Brazil - April 28th, 2012

Two large, artificial reservoirs can be observed along the São Francisco River, in northeastern Brazil. The river marks the border between the states of Bahia (below) and Pernambuco (above). At 3,160 kilometres long, it is the longest river located entirely within Brazil.

The lake to the left is known as the Sobradinho Reservoir. It measures approximately 320 km (200 mi) long, 4,214 km2 (1,627 sq mi) in surface area, and has a storage capacity of 34.1 km3 (8.2 cu mi) at its nominal elevation of 392.5 m (1,287.7 ft), making it the 12th-largest reservoir (artificial lake) in the world. Golden sediments color the lower half of the lake.

Sobradinho Reservoir and Sao Francisco River, Brazil

9.8S 41.5W

September 7th, 2011 Category: Lakes

Brazil - July 23rd, 2011

Visible just west of the spotty clouds is the Sobradinho Reservoir, a large lake located in Sobradinho, in the north of the Brazilian state of Bahia. The lake encloses the waters of the São Francisco River, one of the largest and most important rivers in Brazil.

The reservoir measures approximately 320 km (200 mi) long, 4,214 km2 (1,627 sq mi) in surface area, and a storage capacity of 34.1 km3 (8.2 cu mi) at its nominal elevation of 392.5 m (1,287.7 ft), making it the 12th-largest reservoir (artificial lake) in the world.

 

Sediments from São Francisco River in Sobradinho Lake, Brazil – April 29th, 2011

10.6S 42.8W

April 29th, 2011 Category: Image of the day, Lakes, Rivers, Sediments

Brazil - April 15th, 2011

Sediments from the São Francisco River give Sobradinho Lake coloring that changes from brown, to golden tan, to green. The lake is located in the northern part of the Brazilian state of Bahi.

Created by the construction of the Sobradinho Dam, the reservoir itself is the largest in Brazil, covering a surface area of 4,225 km2. It has a mean depth of 8.6 m and a maximum depth of 30 m.

Sobradinho Lake and São Francisco River, Brazil

9.4S 40.8W

May 5th, 2010 Category: Lakes, Rivers

Brazil - April 29th, 2010

Brazil - April 29th, 2010

This image of Brazil includes parts of the states of Bahia (right), Tocantins (upper left) and Goiás (lower left).  Sobradinho Lake can be seen in the northern part of Bahia.  Its southern reaches appear tan from sediments, while the northern part is green in color.

It was created by the construction of the Sobradinho Dam on the São Francisco River. The reservoir itself is the largest in Brazil, covering a surface area of 4,225 km2. It has a mean depth of 8.6 m and a maximum depth of 30 m.

Sediments from the São Francisco River Enter Sobradinho Lake

9.9S 42.1W

December 14th, 2009 Category: Lakes, Rivers

Brazil - November 28th, 2009

Brazil - November 28th, 2009

The São Francisco River empties tan sediments into Sobradinho Lake in the Brazilian state of Bahia. The sediments gradually diffuse into the lake, such that the waters near the inflow appear tan and those near the outflow appear dark green.

The lake itself is one of the largest artificial reservoirs in the world, with an area of 4,214 square kilometres (1,627 sq mi). The Sobradinho Dam, one of four hydroelectric plants built along the São Francisco River, has a storage capacity of 34.1 billion m3 of water.