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Sediments in Rio de la Plata Estuary, Argentina

34.6S 58.3W

December 31st, 2011 Category: Rivers, Sediments

Argentina - December 24th, 2011

The Río de la Plata is the river and estuary formed by the confluence of the Uruguay River and the Paraná River on the border between Argentina and Uruguay. It is a funnel-shaped indentation on the southeastern coastline of South America, about 290 kilometres (180 mi) long. Here, as usual, it appears tan from sediments. Sediments and some sun glint also highlight the paths of the Uruguay and Paraná Rivers as they flow towards each other at the base of the estuary.

The Río de la Plata widens from about 2 kilometres (1.2 mi) at the inner part to about 220 kilometres (140 mi) at its mouth. It forms part of the border between Argentina and Uruguay, with the major ports and capital cities of Buenos Aires (appearing as a grey area) and Montevideo on its western and northern shores, respectively. The coasts of the Río de la Plata are the most densely populated areas of Argentina and Uruguay.

Paraná and Uruguay Rivers Flowing from Misiones to Buenos Aires, Argentina

26.9S 54.4W

October 5th, 2011 Category: Rivers, Sediments

Argentina - September 21st, 2011

Argentina’s Misiones Province is demarcated by the darker green region in the upper right quadrant. The province is surrounded by Paraguay to the northwest, Brazil to the north, east and south, and Corrientes Province of Argentina to the southwest.

The Misiones plateau includes a part of Brazil across the border. The province is surrounded by three big rivers including the Paraná, Uruguay and Iguazú. Following the Paraná and Uruguay Rivers southward, one comes to their convergence, forming the Rio de la Plata Estuary.

Tan sediments from the rivers give the estuary’s waters a muddy appearance. The city of Buenos Aires can be observed on its southwestern shores, with Montevideo visible across the water to the northeast.

Ash from Puyehue Volcano by Mar Chiquita, Argentina

30.7S 62.8W

August 12th, 2011 Category: Lakes, Volcanoes

Argentina - August 3rd, 2011

Visible on the left side of this image of Argentina is ash from the 2011 Puyehue volcanic eruption, which began in early June and was still active at the time this image was acquired in early August.

The ash reaches north from its Chilean volcano origin to Mar Chiquita (green in color, by left edge), a lake in the Argentine province of Córdoba. East of the ash cloud is the Paraná River, flowing down from the top edge and then curving to the right. Parallel to the Paraná along its southward course is the Uruguay River. The two converge to form the Rio de la Plata.

Vegetation Index Along Argentina-Uruguay Border

28.7S 59.2W

December 14th, 2010 Category: Rivers, Vegetation Index

Argentina and Uruguay - December 14th, 2010

This FAPAR image focuses on part of border area of Argentina (left two-thirds of image) and Uruguay (right third). The Uruguay River provides the border between the two. Parallel to the Uruguay River, to its left, is the Paraná River. Both rivers join together to form the Rio de la Plata Estuary.

The vegetation index of the area varies from low (yellow) to good (green) to high (rusty red). The index increases as one moves northward, and larger areas of a high index can be observed in the upper part of the full image, while larger areas of a low index can be seen in the lower part.

Confluence of the Uruguay and Paraná Rivers, Argentina – December 10th, 2010

December 10th, 2010 Category: Image of the day, Rivers

Argentina and Uruguay - December 6th, 2010

The Rio de la Plata estuary appears tan with sediments from the Uruguay and Paraná Rivers. The Uruguay River flows southward from the top center of the image, while the Paraná flows southward from the top left, then curves to the east before its confluence with the Uruguay.

Where the two rivers meet, they form the Rio de la Plata, which passes by the Argentine capital of Buenos Aires (visible as a grey area on the lower banks) and the Uruguayan capital of Montevideo (visible as a grey area on the upper banks, further east). The latter is best observed in the full image.

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