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Posts tagged Alagoas

Aracajú and Maceió by Coast of Northeastern Brazil

9.6S 35.7W

February 27th, 2012 Category: Lakes

Brazil - December 31st, 2011

This wide-swath ASAR image shows the cities of Maceió (upper right) and Aracajú (bottom left), appearing as white areas along the coast of Brazil. Aracaju is the capital of the State of Sergipe, Brazil, located in the northeastern part of the country, about 350 km (217 mi) north of Salvador. The coast of Aracaju has many beaches.

Maceió is the capital and the largest city of the coastal state Alagoas. The name “maceió” is of Indian origin, and designates the naturally spontaneous courses of water which flow out of the soil. Most maceiós flow to the sea, but some get trapped and form lakes. There are plenty of maceiós and lakes in this part of Brazil, and the city is located between Mundaú Lake and the Atlantic Ocean.

São Francisco River and Popcorn Clouds Over Northeast Brazil

7.4S 38.6W

December 16th, 2011 Category: Clouds, Rivers

Brazil - December 11th, 2011

Popcorn clouds can be seen near the northeastern coastline of Brazil. Water vapor released by plants is more buoyant than dry air, so it rises and eventually condenses into clouds like the popcorn clouds shown in this image.

Visible in the cloudless part of the image is the São Francisco River. With a length of 2,914 kilometres (1,811 mi), it is the longest river that runs entirely in Brazilian territory, and the fourth longest in South America.

The São Francisco originates in the Canastra mountain range in the central-western part of the state of Minas Gerais. It runs generally north in the states of Minas Gerais and Bahia, behind the coastal range, draining an area of over 630,000 square kilometres (240,000 sq mi), before turning east to form the border between Bahia on the right bank and the states of Pernambuco and Alagoas on the left one. After that, it forms the boundary between the states of Alagoas and Sergipe and washes into the Atlantic Ocean (the mouth can be observed south of the image center).

Sediments Framing Northern and Eastern Coastlines of Brazil’s Northeast Region

7.8S 39.7W

July 17th, 2011 Category: Sediments

Brazil - July 14th, 2011

This image shows part of the Northeast Region (Região Nordeste, in Portuguese) of Brazil, which is composed of the following states: Maranhão, Piauí, Ceará, Rio Grande do Norte, Paraíba, Pernambuco, Alagoas, Sergipe and Bahia, and it represents 18.26% of the Brazilian territory.

Geographically, the Northeast consists chiefly of an eroded continental craton with many low hills and small ranges. The highest peaks are around 1,850 metres (6,070 ft) in Bahia, while further north there are no peaks above 1,123 metres (3,684 ft).

On its northern and western side, the plateaus fall steadily to the coast and into the basin of the Tocantins River in Maranhão, but on the eastern side it falls off quite sharply to the coast except in the valley of the São Francisco river. The steep slopes and long cliffs of the eastern coastline are known as “The Great Escarpment”. Here, sediments frame the northern and eastern coastlines.

The escarpment serves an extremely important climatic function. Because for most of the year the Nordeste is out of reach of the Intertropical Convergence Zone, the easterly trade winds blow across the region, giving abundant rainfall to the coast but producing clear, dry conditions inland where the escarpment blocks moisture flow. This gives rise to four distinct regions, the zona da mata on the coast, the agreste on the escarpment, sertão beyond and the Mid north.

São Francisco River Behind Two Hydroelectric Plants, Brazil – December 5th, 2009

9S 38.2W

December 5th, 2009 Category: Image of the day, Rivers

Brazil - November 15th, 2009

Brazil - November 15th, 2009

Sun glint causes this segment of the São Francisco River, in Brazil, to appear a whitish-silvery color. With a length of 3,160 kilometres, it is the fourth largest river system in South America and the longest river wholly within Brazil. The section visible here marks the border between the states of Pernambuco (above), Bahia (below) and Alagoas (lower right).

This segment appears particularly wide due to several dams. The river’s hydroelectric potential started being harnessed in 1955, when the Paulo Afonso dam was built between Bahia and Alagoas. The Paulo Afonso plant now provides electric power for the whole of Northeastern Brazil.

Three other large hydroelectric plants were later built: Três Marias in Minas Gerais, built in 1961, Sobradinho in Bahia, built in 1977, and Luiz Gonzaga (Itaparica), between Bahia and Pernambuco, in 1988. Both the Paulo Afonso and Luiz Gonzaga (Itaparica) plants are located in the lower right part of the image.

São Francisco River, Brazil

January 28th, 2009 Category: Rivers

Sao Francisco River - January 20th, 2009

São Francisco River - January 20th, 2009

A particularly wide segment of the São Francisco River in Brazil is visible in this image. The São Francisco River has a length of 3,160 kilometres. It is the fourth largest river system in South America and the longest river wholly within Brazil.

As we can tell from the light green and tan terrain near the river, it does not run through the luscious Amazon Rainforest but rather lies towards the drier east coast. The water appears light tan, partially from sediments and partially from sun glint.

Beginning in the state of Minas Gerais, the São Francisco River runs generally north behind the coastal range draining an area of over 630,000 square kilometers before turning east to form the border between the state of Bahia and the states of Pernambuco and Alagoas. It then enters the Atlantic Ocean between the states of Alagoas and Sergipe.

The area crossed by the river is vast, dry and sparsely populated, but several towns do lie along the river.

source Wikipedia

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