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Amazon River Basin (the southern Guianas, not marked on this map, are a part of the basin) The mouth of the Amazon River. The Amazon basin is the part of South America drained by the Amazon River and its tributaries. The Amazon drainage basin covers an area of about 7,000,000 km 2 (2,700,000 sq mi), [1] or about 35.5 percent of the South ...
The Amazon River (UK: / ˈ æ m ə z ən /, US: / ˈ æ m ə z ɒ n /; Spanish: Río Amazonas, Portuguese: Rio Amazonas) in South America is the largest river by discharge volume of water in the world, and the longest or second-longest river system in the world, a title which is disputed with the Nile.
The Amazon River is the largest river in the world in terms of its flow rate. In addition, it is the second longest river, measuring 6,575 km (4,086 mi) [3] from its source to the mouth of the Atlantic Ocean [4] after the Nile River which is considered to be the longest river in the world (see Source of the Nile River), although there is some dispute.
White water of the Solimões and black water of the Rio Negro converge to form the Amazon River. The Amazon watershed covers about 5,846,100 square kilometres (2,257,200 sq mi). [12] The Amazon River accounts for 15–16% of the total water discharged by rivers into the oceans of the world. [2] Rivers may be blackwater, whitewater or clearwater.
The Rio Negro (Spanish: Río Negro [ˈri.o ˈneɣɾo] "Black River"), or Guainía as it is known in its upper part, is the largest left tributary of the Amazon River (accounting for about 14% of the water in the Amazon basin), the largest blackwater river in the world, [8] and one of the world's ten largest rivers by average discharge.
The Amazonia marine ecoregion covers the coastal marine environment off the mouth of the Amazon River on the continental shelf of Brazil.The warm North Brazil Current moves east-to-west across the river's outlet, carrying turbid, fresh water to the northwest towards the Caribbean Sea.
Map of the Amazon Basin with the Madeira River highlighted. The Madeira River (Portuguese: Rio Madeira [maˈdejɾɐ]) is a major waterway in South America.It is estimated to be 1,450 km (900 mi) in length, while the Madeira-Mamoré is estimated near 3,250 km (2,020 mi) [4] or 3,380 km (2,100 mi) in length depending on the measuring party and their methods.
The list of drainage basins by area identifies basins (also known as "catchments" or, in North American usage, "watersheds"), sorted by area, which drain to oceans, mediterranean seas, rivers, lakes and other water bodies.