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Sediments in Lagoa Mirim and Lagoa dos Patos, Brazil and Uruguay

32.7S 52.7W

December 3rd, 2012 Category: Lakes, Sediments

Uruguay and Brazil – December 2nd, 2012

Lagoa Mirim, as it is known in Brazil, or Laguna Merín in Uruguay, is a large estuarine lagoon which extends from the southern Rio Grande do Sul state in Brazil into eastern Uruguay. Lagoa Mirim is about 108 miles (174 km) long by 6 to 22 miles (35 km) wide.

Lagoa Mirim is separated from the Atlantic Ocean by a sandy, partially barren isthmus. It is more irregular in outline than its larger neighbor to the north, Lagoa dos Patos, and discharges into the latter through São Gonçalo Channel, which is navigable by small boats. Here, Lagoa Mirim appears greyish brown, while its neighbor to the north shows a mix of dark brown, reddish tan and green.

Both lagoons are the remains of an ancient depression in the coastline shut in by sand beaches built up by the combined action of wind and oceanic currents. They are at the same level as the ocean, but their waters are affected by the tides and are brackish only a short distance above the Rio Grande outlet.

Interconnected Lagoons by Brazil-Uruguay Border: Lagoa dos Patos and Lagoa Mirim

31.1S 51.4W

May 17th, 2012 Category: Lakes

Uruguay, Brazil, Argentina - May 17th, 2012

Visible near the shoreline in the upper part of this image is the Lagoa dos Patos (meaning Lagoon of the Ducks), the second largest lagoon in Latin America and the biggest in Brazil. It is located in the state of Rio Grande do Sul, southern Brazil.

The lagoon is 174 miles (280 km) long, has a maximum width of 44 miles (70 km), and a total area of 3,803 sq. mi. (9,850 km). It is separated from the Atlantic Ocean by a sandbar about 5 miles (8 kilometers) wide. The navigable São Gonçalo Channel, which enters Lagoa dos Patos near the town of Pelotas, connects Lagoa dos Patos to Lagoa Mirim to the south.

Lagoa Mirim (or Laguna Merín in Spanish) is a large estuarine lagoon which extends from southern Rio Grande do Sul state in Brazil into eastern Uruguay. Lagoa Mirim is separated from the Atlantic Ocean by a sandy, partially barren isthmus.

Lagoa Mirim is about 108 miles (174 km) long by 6 to 22 miles (35 km) wide. It is more irregular in outline than its larger neighbor to the north, Lagoa dos Patos, and discharges into the latter through São Gonçalo Channel. Lagoa Mirim has no direct connection to the Atlantic, but the Rio Grande, a tidal channel about 24 miles (39 km) long which connects Lagoa dos Patos to the Atlantic, affords an entrance to the navigable inland waters of both lagoons and several small ports.

Lagoa dos Patos and Lagoa Mirim in Brazil and Uruguay

32.5S 52.9W

June 13th, 2011 Category: Lakes, Sediments

Brazil and Uruguay - June 5th, 2011

Two large lagoons can be observed near the coast of Brazil and Uruguay: Lagoa dos Patos (above), located entirely within Brazil, and Lagoa Mirim (below), in Brazil and Uruguay.

Lagoa dos Patos has greenish waters mixed with tan sediments, while Lagoa Mirim (called Laguna Merín in Uruguay) is dark brown to the north and bright green to the south.

The Brazilian and Uruguayan coastline is framed by greenish sediments. Some whitish yellow, sandy beaches can also be seen along the shores near the lagoons.

Tan and Brown Waters of Lagoa dos Patos and Lagoa Mirim, in Brazil and Uruguay – November 7th, 2010

31.1S 51.9W

November 7th, 2010 Category: Image of the day, Lakes

Brazil and Uruguay - October 12th, 2010

Although scattered clouds dot the skies over coastal Brazil and Uruguay, the skies over two large lagoons near the shoreline remain clear. These two bodies of water are the Lagoa dos Patos and Lagoa Mirim.

Lagoa dos Patos, further north and tan in color, is located entirely within Brazil. Lagoa Mirim, also called Laguna Merín, is further south and brownish grey in color, and shared by Brazil and Uruguay.

Lagoa dos Patos and Lagoa Mirim by Brazil and Uruguay’s Atlantic Coast

31.2S 51.3W

July 12th, 2010 Category: Lakes, Sediments

Brazil - July 5th, 2010

Brazil - July 5th, 2010

The large lagoons known as Lagoa dos Patos and Lagoa Mirim are located near the Atlantic Coast of Brazil and Uruguay. Lagoa Mirim, also called Laguna Merín, is the further south of the two, located partially in both countries. The lagoon is mostly a uniform brownish grey color.

Lagoa dos Patos, on the other hand, meaning Lagoon of the Ducks, is the larger of the two, and located entirely within Brazil. It appears mostly greenish in color here, although upon opening the full image, some dark brown, tan, and dark green areas can also be observed. The city of Porto Alegre can be seen on its northern shores.

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