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Serra da Mesa Reservoir and Deforestation in Mato Grosso, Brazil

13.5S 48.2W

May 6th, 2012 Category: Lakes, Rivers

Brazil - May 6th, 2012

Visible near the bottom edge of this image is the reservoir creatd by the Serra da Mesa Dam, an embankment dam on the Tocantins River near Minaçu, in Goiás, Brazil. The dam creates the largest reservoir by volume in Brazil, with a capacity of 54,400,000,000 m3 (1.92×1012 cu ft) and surface area of 1,784 km2 (689 sq mi).

The border between the states of Goiás and Mato Grosso is marked by the dark brown area west of the reservoir. In Mato Grosso, the terrain appears mostly mixed between agricultural lands, some of which were deforested, and forests along rivers such as the Ronuro River, visible near the left edge carrying tan sediments.

Serra da Mesa Reservoir on Tocantins River, Brazil

13.5S 48.2W

August 28th, 2011 Category: Lakes

Brazil - July 23rd, 2011

The Serra da Mesa Dam (center), once known as Sao Felix, is an embankment dam on the Tocantins River near Minaçu in Goiás, Brazil. The dam serves an associated hydroelectric power plant with a 1,275 MW installed capacity and creates the largest reservoir by volume in Brazil.

The Serra da Mesa Dam is a 1,500 m (4,900 ft) long and 154 m (505 ft) tall earth-fill embankment dam with a clay core and in total contains 12,057,558 m3 (425,808,600 cu ft) of material. The reservoir created by the dam has a capacity of 54,400,000,000 m3 (1.92×1012 cu ft) and surface area of 1,784 km2 (689 sq mi). Of the reservoir’s volume, 43,250,000,000 m3 (1.527×1012 cu ft) is active (live or “useful”) storage.

The dam supports a spillway with five floodgates that are 15 m (49 ft) wide and 20.4 m (67 ft) high each. In total, the spillway has a 15,000 m3/s (530,000 cu ft/s) discharge capacity.

Sobradinho Lake and Serra da Mesa Reservoir, Brazil

12.3S 46.3W

August 24th, 2011 Category: Lakes

Brazil - August 12th, 2011

This image of Brazil includes parts of the states of Bahia (right), Tocantins (upper left) and Goiás (lower left). Two large reservoirs can be seen: the bright green Sobradinho Lake (center right), in the state of Bahia, and the reservoir created by the Serra da Mesa Dam (lower left), in the state of Goiás.

Sobradinho Lake, fed by the São Francisco River,  covers a surface area of 4,225 km2, making it the largest by surface area in Brazil. It has a mean depth of 8.6 m and a maximum depth of 30 m.

The Serra da Mesa Dam, an embankment dam on the Tocantins River, creates the largest reservoir by volume in Brazil, with a capacity of 54,400,000,000 m3 (1.92×1012 cu ft) and surface area of 1,784 km2 (689 sq mi).

Serra da Mesa Reservoir Between Plateau and Araguaia River, Brazil

13.5S 48.2W

May 15th, 2011 Category: Lakes, Rivers

Brazil - May 1st, 2011

Lying between a plateau to the east (tan in color) and the Araguaia River to the west (in the midst of a green and brown wetlands area) is the reservoir of the Serra da Mesa Dam.

An embankment dam on the Tocantins River near Minaçu in Goiás, Brazil, the Serra da Mesa creates the largest reservoir by volume in Brazil, with a capacity of 54,400,000,000 m3 (1.92×1012 cu ft) and surface area of 1,784 km2 (689 sq mi).

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.

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