Río Negro (Atlantic Ocean)

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Río Negro
Northern Patagonia with the Río Negro

Northern Patagonia with the Río Negro

Data
location Argentina
River system Río Negro
origin Confluence of Limay and Neuquén at Neuquén
38 ° 59 ′ 4 ″  S , 68 ° 0 ′ 45 ″  W
muzzle in the Atlantic Coordinates: 41 ° 1 ′ 54 ″  S , 62 ° 47 ′ 0 ″  W 41 ° 1 ′ 54 ″  S , 62 ° 47 ′ 0 ″  W

length 637 km
Catchment area 116 km²
Drain MQ
 846 m³ / s
Big cities Neuquén
Medium-sized cities Viedma , Choele Choel
Aerial view of the Rio Negro near Viedma

Aerial view of the Rio Negro near Viedma

The Rio Negro is a river in Argentina about 637 kilometers long.

It arises from the confluence of the Limay and Neuquén near the city of the same name Neuquén . From there it flows eastwards across Patagonia and receives no further noteworthy tributaries up to its mouth. Above Choele Choel , the river splits into two arms, forming several large islands, and then reuniting to form a river bed below Choele Choel. It then flows in a south-easterly direction and flows into the Atlantic about 30 kilometers downstream from Viedma .

With the Neuquén as its source river, the Rio Negro reaches a total length of 1147 kilometers. However, seen Hydrologically is slightly shorter Limay the main flow, as its average discharge rate of 726 m 3 / s m of Neuquén with only 296 3 / s considerably exceeds them.

literature

  • Colbert E. Cushing, Kenneth W. Cummins, G. Wayne Minshall: River and Stream Ecosystems of the World: With a New Introduction . University of California Press 2006, ISBN 0-520-24567-9 , p. 280ff ( excerpt (Google) )
  • Rio Negro . In: Meyers Großes Konversations-Lexikon, Volume 17. Leipzig 1909, p. 7

Web links

Commons : Río Negro River (Río Negro Province)  - Collection of images, videos and audio files

Individual evidence

  1. ↑ a b c Global International Water Assessment (GIWA). Subregion 38 Patagonian Shelf ( Memento from November 2, 2013 in the Internet Archive ) (PDF; 3.5 MB). Instituto Argentino de Recursos Hidricos, Buenos Aires, October 2002, p. 73
  2. ^ Lilian del Castillo: Legal and Institutional Frameworks for Water Quality Management in Argentina . In: Asit K. Biswas (Ed.): Water Quality Management in the Americas . Birkhäuser 2006, ISBN 3-540-24290-2 , pp. 219-220
  3. ^ Colbert E. Cushing, Kenneth W. Cummins, G. Wayne Minshall: River and Stream Ecosystems of the World: With a New Introduction . University of California Press 2006, ISBN 0-520-24567-9 , p. 280ff ( excerpt (Google) )