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Latest Fluvial landforms Stories

NASA Satellite Data Find There Is Hope For Water In Aral Sea Basin
2014-02-14 14:25:27

Carol Rasmussen, NASA Earth Science News Team - NASA A new study using data from NASA satellite missions finds that, although the long-term water picture for the Aral Sea watershed in Central Asia remains bleak, short-term prospects are better than previously thought. Once the fourth largest inland sea in the world, the Aral Sea has lost 90 percent of its water volume over the last 50 years. Its watershed -- the enormous closed basin around the sea -- encompasses Uzbekistan and parts...

2013-12-31 08:22:33

JIUZHAI VALLEY, China, Dec. 31, 2013 /PRNewswire/ -- Nuorilang Waterfall, located in Sichuan province's Jiuzhai Valley, recently took the top spot in an online poll for China's Top 10 Most Beautiful Waterfalls. To view the multimedia assets associated with this release, please click: http://www.multivu.com/mnr/64968-jiuzhai-valley-national-park-china-nuorilang-waterfall The 270-meter wide, 24.5 meter high Nuorilang Waterfall, at 2,365 meters, is an expansive travertine...

Economical Solutions For Maintaining Critical Delta Environments
2013-12-10 08:47:46

Woods Hole Oceanographic Institution Millions of people across the world live or depend on deltas for their livelihoods. Formed at the lowest part of a river where its water flow slows and spreads into the sea, deltas are sediment-rich, biodiverse areas, a valuable source of seafood, fertile ground for agriculture, and host to ports important for transportation. At least half of the deltas around the world are so-called “wave dominated deltas” – open to the sea and under the...

2013-04-19 14:16:25

A team of geoscientists from Southwest Research Institute (SwRI) using newly available remote-sensing technology has achieved unprecedented detail in quantifying subtle, long-period changes in the water levels of shallow lakes and ponds in hard-to-reach Arctic wetlands. Analysis comparing time-lapsed, high-resolution satellite imagery of the Ahnewetut Wetlands in Kobuk Valley National Park, Alaska, revealed an accelerated loss of surface water in shallow thaw lakes and ponds over a recent...

Antarctica's Salty Don Juan Pond Offers Watery Hope For Mars
2013-02-07 15:42:19

Lawrence LeBlond for redOrbit.com - Your Universe Online Several bodies of water around the world are known for their salty content. Among the most well-known are the Great Salt Lake in Utah and the Dead Sea. But these bodies of water pale in comparison to Don Juan Pond in Antarctica, known as the saltiest body of water on Earth. The pond, situated in the McMurdo Dry Valleys of the harsh, icy continent, keeps from freezing because of its salt-rich composition. But why this landlocked...

2012-10-22 22:22:31

The extensive system of levees along the Mississippi River has done much to prevent devastating floods in riverside communities. But the levees have also contributed to the loss of Louisiana's wetlands. By holding in floodwaters, they prevent sediment from flowing into the watershed and rebuilding marshes, which are compacting under their own weight and losing ground to sea-level rise. Reporting in Nature Geoscience, a team of University of Pennsylvania geologists and others used the...

2012-10-15 15:20:05

The University of Michigan and 20 other U.S. and Canadian universities will join forces to propose a set of long-term research and policy priorities to help protect and restore the Great Lakes and to train the next generation of scientists, attorneys, planners and policy specialists who will study them. The Great Lakes Futures Project of the Transborder Research University Network will use a cross-disciplinary, cross-sector approach to outlining alternative Great Lakes futures through...

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2012-06-02 11:09:53

Some of the steepest mountain slopes in the world got that way because of the interplay between terrain uplift associated with plate tectonics and powerful streams cutting into hillsides, leading to erosion in the form of large landslides, new research shows. The work, presented online May 27 in Nature Geoscience, shows that once the angle of a slope exceeds 30 degrees — whether from uplift, a rushing stream carving away the bottom of the slope or a combination of the two —...

2012-05-07 13:33:00

Ecologists review the human and biological communities of wadis, arroyos, gulches, washes, and other intermittent flows 'When the River Runs Dry' is a familiar song in Australia. Some rivers in the arid center of the continent flow only after a stiff monsoon season, and smaller tributaries all over the country commonly shrink to puddled potholes and dry river beds during the dry season. But rivers also run dry in more temperate climes. Much of the upper reaches and feeder streams of the...


Latest Fluvial landforms Reference Libraries

Endorheic Basin
2013-04-18 22:40:14

An endorheic basin, from the Ancient Greek endon, meaning “within” and rhein, meaning “to flow”, is a closed drainage basin that holds onto water and does not allow outflow to other external bodies of water, such as oceans or rivers, but joins instead into lakes or swamps, seasonal or permanent, that equilibrate via evaporation. Basins such as these might also be referred to as closed or terminal basin or as internal drainage systems. Usually, water that has built up in a drainage...

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Word of the Day
call-note
  • The call or cry of a bird or other animal to its mate or its young.
'Call-note' is newer than 'bird-call,' which originally referred to 'an instrument for imitating the note of birds' but now also refers to 'the song or cry of a bird.'
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