Images related to Madagascar’s Muddy Rivers

Thick Sediment in Madagascar’s Onibe River
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Thick Sediment in Madagascar’s Onibe River

Evidence of severe flooding in Madagascar, in the wake of Tropical Cyclone Giovanna, was a sediment plume at the mouth of the Onibe River.

Published Feb 22, 2012

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A Close-Up View of the Betsiboka
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A Close-Up View of the Betsiboka

The braided river carries iron-rich sediment from the high central plateau and mountains down through complex, woven channels and vegetated islands.

Published Nov 4, 2018

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Meandering in the Amazon
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Meandering in the Amazon

Lowland rivers that carry large volumes of sediment are on the move.

Published Dec 4, 2014

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The Many Meanders of the Juruá
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The Many Meanders of the Juruá

Heavy sediment loads play a role in making it one of the most sinuous rivers in the Amazon Basin.

Published Nov 13, 2019

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The Big Muddy, Western Edition
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The Big Muddy, Western Edition

Flowing past the city of Vancouver, the Fraser River delivers a thick plume of sediment to the Strait of Georgia.

Published Mar 14, 2012

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Estuaries, Northwest Coast of Madagascar
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Estuaries, Northwest Coast of Madagascar

This astronaut photograph highlights two biologically productive estuaries on the coast of Madagascar.

Published Jun 13, 2011

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Solimões-Negro River Confluence at Manaus, Amazonia
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Solimões-Negro River Confluence at Manaus, Amazonia

The largest river on the planet, the Amazon, forms from the confluence of the Solimões (the upper Amazon River) and the Negro at the Brazilian city of Manaus in central Amazonas. At the river confluence, the muddy, tan-colored waters of the Solimões meet the “black” water of the Negro River. The unique mixing zone where the waters meet extends downstream through the rainforest for hundreds of kilometers, and is a famous attraction for tourists from all over the world. The tourism contributes to substantial growth in the city of Manaus. Twenty years ago the large park near the city center (center) lay on the eastern outskirts of Manaus.

Published Feb 12, 2005

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Sediment Spews from Connecticut River
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Sediment Spews from Connecticut River

Nearly a week after Hurricane Irene drenched New England, the river was spewing large amounts of muddy sediment into Long Island Sound.

Published Sep 9, 2011

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Betsiboka River Floods, Madagascar—January 2009
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Betsiboka River Floods, Madagascar—January 2009

Two storms—Tropical Storm Eric and Cyclone Fanele—swept across eastern Madagascar within days of each other in January 2009. Rain from the storms swelled the Betsiboka River with floodwater.

Published Mar 30, 2009

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Irene’s Sediment in New York Harbor
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Irene’s Sediment in New York Harbor

In the wake of Hurricane Irene’s heavy rains, sediment filled the Hudson River and New York Harbor.

Published Sep 2, 2011

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Betsiboka Estuary, Madagascar
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Betsiboka Estuary, Madagascar

The Betsiboka Estuary on the northwest coast of Madagascar is the mouth of Madagascar’s largest river and one of the world’s fast-changing coastlines. Nearly a century of extensive logging of Madagascar’s rainforests and coastal mangroves has resulted in nearly complete clearing of the land and fantastic rates of erosion. After every heavy rain, the bright red soils are washed from the hillsides into the streams and rivers to the coast. Astronauts describe their view of Madagascar as “bleeding into the ocean.” One impact of the extensive 20th century erosion is the filling and clogging of coastal waterways with sediment—a process that is well illustrated in the Betsiboka estuary. In fact, ocean-going ships were once able to travel up the Betsiboka estuary, but must now berth at the coast.

Published Apr 12, 2004

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Sediment Plumes in the Hudson River
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Sediment Plumes in the Hudson River

These images from September 12, 2011, and September 2, 2010, compare conditions in the Hudson River near Ellis Island. In the wake of storms, sediment filled the river in 2011.

Published Sep 13, 2011

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