News tagged with river sediment
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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Sediment sleuthing: Radioactive medicine being tracked through rivers
A University of Delaware oceanographer has stumbled upon an unusual aid for studying local waterways: radioactive iodine. Trace amounts of the contaminant, which is used in medical treatments, are entering ...
Mar 22, 2012 |
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Long-Term carbon storage in Ganges basin may portend global warming worsening
(PhysOrg.com) -- Woods Hole Oceanographic Institution (WHOI) scientists have found that carbon is stored in the soils and sediments of the Ganges-Brahmaputra basin for a surprisingly long time, making it likely ...
Space & Earth / Earth Sciences
Nov 09, 2011 |
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Mississippi mud: More water behind river's sediment rise
(PhysOrg.com) -- During the past several decades, upper Midwest state and local agencies have spent hundreds of millions of dollars on extraordinary conservation efforts to prevent the Upper Mississippi River ...
Sep 29, 2011 |
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Researchers' chance viewing of river cutoff forming provides rare insight
For University of Illinois river researchers, new insight into river cutoffs was a case of being in the right place at the right time.
Space & Earth / Earth Sciences
Sep 21, 2011 |
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Satellite image of post-Irene Gulf of Maine shows high levels of river discharge
A satellite image recorded Monday at the University of Maine after the remnants of Hurricane Irene passed over northern New England the day before shows unusually high amounts of river discharge and suspended ...
Space & Earth / Earth Sciences
Sep 01, 2011 |
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Stone cutting tools link early humans to prehistoric India
Dating of recently discovered artifacts in South India indicates that early humans lived in the region more than a million years ago, and that they used distinct 'Acheulian' stone cutting tools, a new study ...
Other Sciences / Archaeology & Fossils
Mar 25, 2011 |
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What lies beneath: Study examines sediment movement during floods in rivers
Food disasters in many parts of the world have brought into sharp focus new research spearheaded by the University of Leicester on the behaviour of rivers during periods of high flow.
Space & Earth / Earth Sciences
Oct 04, 2010 |
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Understanding Missouri River's sediment dynamics key to protecting endangered species
A new report from the National Research Council says that more organized and systematic procedures for gathering and evaluating data on Missouri River sediment are required to improve decisions and better manage the river's ...
Sep 28, 2010 |
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Geologist investigates canyon carved in just three days in Texas flood
In the summer of 2002, a week of heavy rains in Central Texas caused Canyon Lake -- the reservoir of the Canyon Dam -- to flood over its spillway and down the Guadalupe River Valley in a planned diversion ...
Space & Earth / Earth Sciences
Jun 20, 2010 |
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GE: Limit PCB contamination during Hudson dredging
(AP) -- General Electric Co. on Monday proposed a halting further dredging of the Hudson River if PCBs churned up by the work spread too much pollution downriver during the second phase of an ongoing cleanup.
Mar 08, 2010 |
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Marine Scientist Finds 'Little Ice Age' Had Dramatic Effect on Gulf
(PhysOrg.com) -- More than 350 years ago, the temperatures in northern Europe dropped dramatically in an event known as the “Little Ice Age.” Now - deep below the waters of the Gulf of Mexico and buried in ...
Space & Earth / Earth Sciences
Feb 22, 2010 |
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Diverting Sediment-rich Water Below New Orleans Could Lead to Extensive New Land
(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.
Oct 20, 2009 |
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Alfalfa sprouts hold the line on meandering streams (w/ Video)
(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 ...
Space & Earth / Earth Sciences
Oct 05, 2009 |
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Report: Great Lakes toxic cleanups lagging badly
(AP) -- A federal report says the government is moving so slowly to clean up the most polluted sites in the Great Lakes that it will take 77 more years to finish the job at the current pace.
Sep 15, 2009 |
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