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Posts tagged Rio Negro

Negro and Amazon Rivers Flowing Across Amazon Rainforest, Brazil

2.8S 62.2W

March 29th, 2013 Category: Rivers

Brazil – March 26th, 2013

Flowing across the upper portion of this image of the Amazon Rainforest is the Rio Negro, a river with dark, almost black-coloured, water (although part of the river to the east appears light here due to sun glint), while the sandy-coloured Amazon River, or Rio Solimões, flows across the lower part of the image. The two rivers converge near Manaus (not visible here), where for 6 km (3.7 mi) their waters run side by side without mixing, due to differences in temperature, speed and water density.

Phytoplankton in San Matías Gulf and Near Valdés Peninsula, Argentina

41.3S 64.4W

November 5th, 2012 Category: Phytoplankton

Argentina – November 4th, 2012

A green and blue phytoplankton bloom continues to flourish off the coast of Argentine Patagonia (click here for previous images of the bloom). Also visible here is some blue phytoplankton growth in the San Matías Gulf (upper left), an inlet of the Atlantic Ocean bordered by the Río Negro Province to the north and west, and the Valdes Peninsula of the Chubut Province to the south.

Nahuel Huapi Lake in Glacial Valleys, Argentina

41.1S 71.3W

November 22nd, 2011 Category: Lakes, Mountains

Argentina - November 15th, 2011

This orthorectified image shows Nahuel Huapi Lake, located in the lake region of northern Patagonia between the provinces of Río Negro and Neuquén, in Argentina. The lake depression consists of several glacial valleys carved out along faults and Miocene valleys that were later dammed by moraines.

Nahuel Huapi lake, located within the Nahuel Huapi National Park, has a surface of 529 km2 (204 sq mi), rests 2,510 feet (770 m) over the sea level, and has a maximum measured depth (as of 2007) of 1,437 feet (438 m).

From the Northern Coast of South America to the Meeting of the Waters, Brazil

3.1S 60W

September 26th, 2011 Category: Rivers

Brazil - August 16th, 2011

This image stretches from the northenern coastline of South America, including Guyana, Suriname and French Guiana, across the Brazilian state of Roraima to the state of Amazonas.

Visible near the lower edge is the Amazon River. In the lower left corner, near the city of Manaus, the Meeting of Waters (Portuguese: Encontro das Águas) can be observed. It is the confluence between the Rio Negro, a river with dark (almost black coloured) water, and the sandy-coloured Amazon River or Rio Solimões, as it is known the upper section of the Amazon in Brazil. For 6 km (3.7 mi) the river’s waters run side by side without mixing. It is one of the main tourist attractions of Manaus, Brazil.

This phenomenon is due to the differences in temperature, speed and water density of the two rivers. The Rio Negro flows at near 2 km per hour at a temperature of 28°C, while the Rio Solimões flows between 4 to 6 km per hour a temperature of 22°C.

Nahuel Huapí and Traful Lakes, Argentina – March 9th, 2011

41.1S 71.3W

March 9th, 2011 Category: Image of the day, Lakes, Mountains

Argentina - February 18th, 2011

This orthorectified image focuses on two lakes in the foothills of the Patagonian Andes, in Argentina: Nahuel Huapí Lake (left) and Traful Lake (top center).

Nahuel Huapí Lake is located between the provinces of Río Negro and Neuquén, in Argentina. It has a surface of 529 km2 (204 sq mi), rests 2,510 feet (770 m) over the sea level, and has a maximum measured depth (as of 2007) of 1,437 feet (438 m). The lake depression consists of several glacial valleys carved out along faults and Miocene valleys that were later dammed by moraines.

Traful Lake is a lake in the Argentine province of Neuquén with an area of 70 km². The lake is the starting point of the Traful River that empties into the Nahuel Huapí Lake.

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