News tagged with sediment flow
Researchers map fish species at risk from dams
Dams are believed to be one of the biggest threats to freshwater organisms worldwide: They disrupt normal patterns of water and sediment flow, impede migration, and alter the character of spawning and feeding grounds. A shortage ...
May 10, 2012 |
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Effect of vegetation die-off tested on tidal marshland
Consisting of densely vegetated platforms raised slightly above sea level, and interwoven by channels of water meandering inland from the coast, tidal marshlands help buffer against strong storm surges, protect against flooding, ...
Space & Earth / Earth Sciences
Mar 02, 2012 |
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A clearer picture of how rivers and deltas develop
By adding information about the subsoil to an existing sedimentation and erosion model, researchers at Delft University of Technology (TU Delft, The Netherlands) have obtained a clearer picture of how rivers ...
Space & Earth / Earth Sciences
Jan 25, 2011 |
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Study predicts Australian seabed response to climate change
(PhysOrg.com) -- CSIRO scientists have produced the first preliminary predictions of the potential impact of climate change on the Australian seabed.
Space & Earth / Earth Sciences
Oct 15, 2009 |
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Search results for sediment flow
Researchers conclude that climate change led to collapse of ancient Indus civilization
A new study combining the latest archaeological evidence with state-of-the-art geoscience technologies provides evidence that climate change was a key ingredient in the collapse of the great Indus or Harappan Civilization ...
Space & Earth / Earth Sciences
May 28, 2012 |
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Dead ahead: Less rainfall for drought-sensitive southern hemisphere regions?
(Phys.org) -- Warming climate may mean less rainfall for drought-sensitive regions of the Southern Hemisphere, according to results just published by an international research team.
Space & Earth / Earth Sciences
May 21, 2012 |
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A push from the Mississippi kept Deepwater Horizon oil slick off shore, research shows
When the Deepwater Horizon drilling rig exploded April 20, 2010, residents feared that their Gulf of Mexico shores would be inundated with oil. And while many wetland habitats and wildlife were oiled during the three-month ...
May 10, 2012 |
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Geologists map prehistoric climate changes in Canada's Yukon Territory
Researchers at the University of Pittsburgh have joined an international group of scientists to study past climate changes in the Arctic. Comprising geologists from Pitt's Department of Geology and Planetary Science, the ...
Space & Earth / Earth Sciences
May 08, 2012 |
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Signs of ancient flowing water on Mars
(Phys.org) -- ESA’s Mars Express has returned images of a region on the Red Planet that appears to have been sculpted in part by flowing liquid. This again adds to the growing evidence that Mars had large ...
Space & Earth / Space Exploration
May 07, 2012 |
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New technique suggests Medieval Warm Period made it to Antarctica
Scientists have developed a new method of reconstructing past climates that uses the water locked inside crystals in seabed sediment to shed light on the history of the Antarctic.
Space & Earth / Earth Sciences
May 01, 2012 |
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Fossilized plant matter points to desertification near Tibetan Plateau
Roughly 22 million years ago, at the onset of the Miocene, the Tibetan Plateau started to lift upward. The rising land curbed the flow of moist air from the south, sparking the onset of central Asian desertification. Or, ...
Space & Earth / Earth Sciences
Apr 23, 2012 |
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Planned dams in Amazon may have largely negative ecosystem impact
The Andean Amazon is becoming a major frontier for new hydroelectric dams, but an analysis of the potential impacts of these planned projects suggests that there may be serious ecological concerns to take into account. The ...
Apr 18, 2012 |
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Impacts could be boon for subterranean life
An incoming asteroid is trouble whether you're a dinosaur or a Bruce Willis fan. But microbes living deep underground may actually welcome the news, according to a recent study of an ancient impact in the ...
Space & Earth / Space Exploration
Apr 16, 2012 |
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Same samples, different analytical strategies, complementary inferences
(Phys.org) -- The results of two separate but complementary analyses on 400 samples of Hanford Site groundwater appeared together in the journal of the International Society for Microbial Ecology. The studies ...
Apr 11, 2012 |
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List of search results for sediment flow
