River
hideA river is a natural watercourse, usually freshwater, flowing toward an ocean, a lake, a sea or another river. In a few cases, a river simply flows into the ground or dries up completely before reaching another body of water. Small rivers may also be called by several other names, including stream, creek, brook, rivulet, and rill; there is no general rule that defines what can be called a river. Many names for small rivers are specific to geographic location; one example is Burn in Scotland and North-east England. Sometimes a river is said to be larger than a creek, but this is not always the case, due to vagueness in the language.
A river is part of the hydrological cycle. Water within a river is generally collected from precipitation through surface runoff, groundwater recharge, springs, and the release of stored water in natural ice and snowpacks (i.e., from glaciers).
For more information about River, read the full article at
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News tagged with rivers
Salmon migration mystery explored on Idaho's Clearwater River
Nov 15, 2009 |
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(PhysOrg.com) -- Temperature differences and slow-moving water at the confluence of the Clearwater and Snake rivers in Idaho might delay the migration of threatened juvenile salmon and allow them to grow larger ...
'Blue energy' seems feasible and offers considerable benefits
Oct 30, 2009 |
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Generating energy on a large scale by mixing salt and fresh water is both technically possible and practical. The worldwide potential for this clean form of energy - 'blue energy' or 'blue electricity' - is enormous. However, ...
Traces of pharmaceuticals found in central Indiana waterways
Oct 20, 2009 |
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(PhysOrg.com) -- Pharmaceuticals have been found in freshwater ecosystems in rural areas of central Indiana, says a new study from Ball State University.
Diverting Sediment-rich Water Below New Orleans Could Lead to Extensive New Land
Oct 20, 2009 |
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(PhysOrg.com) -- Diverting sediment-rich water from the Mississippi River below New Orleans could generate new land in the river's delta in the next century.
Some Canadian rivers at risk of drying up
Oct 15, 2009 |
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(PhysOrg.com) -- Some Canadian rivers are at risk of drying up as impacts of climate change intersect with growing water demand from the country's cities, industries and agriculture, a new WWF report has found.
A tree's response to environmental changes: What can we expect over the next 100 years?
Oct 07, 2009 |
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The many environmental issues facing our society are prevalent in the media lately. Global warming, rainforest devastation, and endangered species have taken center stage. Our ecosystem is composed of a very delicate network ...
Alfalfa sprouts hold the line on meandering streams (w/ Video)
Space & Earth / Earth Sciences
Oct 05, 2009 |
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(PhysOrg.com) -- Sinuous, meandering streams produce diverse and wildlife-rich habitats and are the aim of many river restoration efforts, but until now, the bank, water flow and sediment conditions required ...
River heals as lawsuit against Big Poultry looms
Sep 20, 2009 |
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(AP) -- David Overbey is no scientist, but he says a person doesn't have to be to see how much the Illinois River has improved in recent years.
World's river deltas sinking due to human activity, says new study
Space & Earth / Earth Sciences
Sep 20, 2009 |
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A new study led by the University of Colorado at Boulder indicates most of the world's low-lying river deltas are sinking from human activity, making them increasingly vulnerable to flooding from rivers and ...
Northwest salmon recovery plan may include breaching dams
Sep 16, 2009 |
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In a case closely followed by environmental and business interests, a rewritten plan for restoring endangered and threatened wild salmon runs on the Columbia and Snake rivers in Washington state and Idaho includes studying ...
Widespread occurrence of intersex bass found in US Rivers
Sep 14, 2009 |
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Intersex in smallmouth and largemouth basses is widespread in numerous river basins throughout the United States is the major finding of the most comprehensive and large-scale evaluation of the condition, ...
River flow and temperature limit trout numbers
Sep 09, 2009 |
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Over a 23-year study, Javier Lobón-Cerviá has found the mechanism that controls the number of salmonids found each year in Cantabrian rivers. His method has been to monitor population numbers ...
Humans causing erosion comparable to world's largest rivers and glaciers
Space & Earth / Earth Sciences
Sep 02, 2009 |
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(PhysOrg.com) -- A new study finds that large-scale farming projects can erode the Earth's surface at rates comparable to those of the world's largest rivers and glaciers.
Shifting Baselines Confound River Restoration
Sep 01, 2009 |
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Steep reductions in the abundance of fish, shellfish, and other aquatic fauna in recent centuries are not restricted to animals that live in the sea: historical records show that species in rivers and lakes worldwide also ...
Florida, federal officials reach deal for Everglades restoration
Aug 14, 2009 |
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Water managers and the White House signed a crucial contract Thursday that promises a much-needed infusion of federal dollars for the Everglades.
