into which ocean does the rive amazon flow?
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Amazon River summary
Amazon River, Portuguese Rio Amazonas, River, northern South America. It is the largest river in the world in volume and in area of drainage basin; only the Nile River of eastern and northeastern Africa exceeds it in length. It originates within 100 mi (160 km) of the Pacific Ocean in the Peruvian Andes Mountains and flows some 4,000 mi (6,400 km) across northern Brazil into the Atlantic Ocean. Its Peruvian length is called the Marañón River, and the stretch of river from the Brazilian border to the mouth of the Negro River is the Solimões River.
Its more than 1,000 known tributaries rise in the Guiana Highlands, the Brazilian Highlands, and (principally) the Andes; 7 of these are longer than 1,000 mi (1,600 km), and the Madeira River exceeds 2,000 mi (3,200 km). The Amazon can accommodate large freighters as far upriver as the city of Manaus, Braz., 1,000 mi (1,600 km) from the Atlantic. The first European descent was made by Francisco de Orellana in 1541–42; he is said to have given the river its name after reporting battles with tribes of women, whom he likened to the Amazons of Greek legend. Pedro Teixeira achieved the first ascent in 1637–38, but the river remained little explored until the mid-19th century.
Where does the Amazon River mainly flow through?
The Amazon proper runs mostly through Brazil and Peru, and is part of the border between Colombia and Perú. It has a series of major tributaries in Colombia, Ecuador and Peru, some of which flow into the Marañón and Ucayali, and others directly into the Amazon proper.
Where does the Amazon River begin and end?
It originates high in the Andes Mountains of Peru and flows eastwards on a meandering 4,000-mile (6,400 km) journey, roughly one-third of its length in Peru and two-thirds in Brazil, before emptying into the Atlantic Ocean on Brazil’s northeastern coast.
What feeds the Amazon River?
The Marañón, Mantaro and Apurímac Rivers originate in the high mountain area of the Peruvian Andes at altitudes over 5,000 metres (16,000 ft). All three sources are considered to be the source of the Amazon, but from different points of view.
How many rivers flow into the Amazon River?
With more than 1,100 tributaries — 17 of which are over 930 miles (1,497 km) long — the Amazon River has the largest drainage system in the world.
Can you swim in the Amazon river?
As a general rule, anyone can swim on the Amazon River but never go alone. Use the advice of residents and avoid isolated and dangerous areas (unless you want to die). Finally, it’s also possible to pay for safe and amazing experiences, such as swimming with Botos, the Amazon River Dolphin.
How dangerous is the Amazon river?
According to Goparoo Travel Guide, the biggest threat comes from mosquitoes carrying malaria and yellow fever. These are both serious illnesses, so get the appropriate vaccinations before you go to the Amazon. Visitors may also get sick from the local food and water.
Are there sharks in the Amazon river?
Sharks only live in the sea … don’t they? We know that when the first Spanish explorers saw the mighty Amazon River they called it “The Great Inland Sea”, but it is full of freshwater. So are there sharks in the Amazon? Surprisingly, the answer is YES – bull sharks.
What can kill you in the Amazon?
The Most Dangerous Animals Of The Amazon Rainforest
- Amazonian Giant Centipede. The creepy crawly appearance of the Amazonian Giant Centipede.
- Mosquito. Mosquitoes feed on human blood.
- Wandering Spiders. The wandering spider, found in the Amazon rainforest.
- Jaguar.
- Electric Eel.
- Black Caiman.
- Bullet Ant.
- Piranhas.
What is the deepest river in America?
Hudson River Hudson river is the deepest river in the US with the highest depth point of 216 feet which is in World’s End close to West Point.
Where does the water from the Amazon River go?
A Landsat Image of the Amazon River, Brazil, on November 30, 2000. (Image credit: NASA, Landsat.org, Center for Global Change and Earth Observations, Michigan State University) South America’s winding Amazon River flows in an easterly direction across the continent, dumping water into the Atlantic Ocean.
How big is the Amazon River in square miles?
The Amazon River and its watershed encompass an area of 2,720,000 square miles (7,050,000 sq km). This area includes the largest tropical rainforest in the world – the Amazon Rainforest . In addition parts of the Amazon Basin also include grassland and savannah landscapes.
Why is the Amazon River important to South America?
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Why is the Amazon River famous? The Amazon is well known for a number of reasons. It is the greatest river of South America and the largest drainage system in the world in terms of the volume of its flow and the area of its basin.
When did the Amazon River flow in the opposite direction?
The Amazon River flowed in the opposite direction about 130 million years ago. The Amazon River’s discharge exceeds that of the next nine largest rivers. Up to 20% of all freshwater discharge to the ocean flows through the Amazon River.
Physical features
The length of the Amazon
The debate over the location of the true source of the Amazon and over the river’s precise length sharpened during the second half of the 20th century, as technological advances made it possible to explore deeper into the extremely remote locations of the Amazon’s headstreams and to more accurately measure stream lengths.
Beginning in the 1950s, explorers of the region cited various mountains in Peru as possible sources, but they did so without taking precise measurements or applying hydrological research. An expedition in 1971, sponsored by the National Geographic Society, pinpointed Carruhasanta Creek, which runs off the north slope of Mount Mismi in southern Peru, as the source of the river. This location became widely accepted in the scientific community and remained so until the mid-1990s—although a Polish expedition in 1983 contended that the source of the river was actually another stream, nearby Apacheta Creek. (The Carruhasanta and Apacheta streams form the Lloqueta River, an extension of the Apurímac.)
Landforms and drainage patterns
The Amazon basin is a great structural depression, a subsidence trough that has been filling with immense quantities of sediment of Cenozoic age (i.e., dating from about the past 65 million years). This depression, which flares out to its greatest dimension in the Amazon’s upper reaches, lies between two old and relatively low crystalline plateaus, the rugged Guiana Highlands to the north and the lower Brazilian Highlands (lying somewhat farther from the main river) to the south.
The Amazon basin was occupied by a great freshwater sea during the Pliocene Epoch (5.3 to 2.6 million years ago). Sometime during the Pleistocene Epoch (about 2,600,000 to 11,700 years ago) an outlet to the Atlantic was established, and the great river and its tributaries became deeply entrenched in the former Pliocene seafloor.
Physiography of the river course
The Amazon River’s main outlets are the two channels north of Marajó Island, a lowland somewhat larger in size than Denmark, through a cluster of half-submerged islets and shallow sandbanks. There the mouth of the river is 40 miles (64 km) wide. The port city of Belém, Brazil, is on the deep water of the Pará River estuary south of Marajó. The Pará is fed chiefly by the Tocantins River, which enters the Pará southwest of Belém. The port city’s link with the main Amazon channel is either north along the ocean frontage of Marajó or following the deep but narrow furos (channels) of Breves that bound the island on the west and southwest and link the Pará River with the Amazon.
Hydrology of the Amazon River
Most of the estimated 1.3 million tons of sediment that the Amazon pours daily into the sea is transported northward by coastal currents to be deposited along the coasts of northern Brazil and French Guiana. As a consequence, the river is not building a delta. Normally, the effect of the tide is felt as far upstream as Óbidos, Brazil, 600 miles (970 km) from the river’s mouth.
A tidal bore called the pororoca occurs at times in the estuary, prior to spring tides. With an increasing roar, it advances upstream at speeds of 10 to 15 miles (16 to 24 km) per hour, forming a breaking wall of water from 5 to 12 feet (1.5 to 4 metres) high.
Climate
The climate of Amazonia is warm, rainy, and humid. The lengths of day and night are equal on the Equator (which runs only slightly north of the river), and the usually clear nights favour relatively rapid radiation of the heat received from the sun during the 12-hour day. There is a greater difference between daytime and midnight temperatures than between the warmest and coolest months. Hence, night can be considered the winter of the Amazon.
At Manaus the average daily temperature is in the upper 80s F (about 32 °C) in September and the mid-70s F (about 24 °C) in April, but the humidity is consistently high and often oppressive. During the winter months of the Southern Hemisphere, a powerful south-polar air mass occasionally drifts northward into the Amazon region, causing a sharp drop in temperature, known locally as a friagem, when the mercury may register into the 50s F (about 14 °C).
