News tagged with gullies
Efforts to control the 'Mighty Mississippi' result in flooded farmland and permanent damage
When the water in the Mississippi River rose to 58 feet with a forecast of 60 feet or higher in May 2011, the emergency plan to naturally or intentionally breach the levees, established over 80 years prior, ...
Jan 19, 2012 |
5 / 5 (2) |
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Are gas-formed gullies the norm on Mars?
In June 2000, Martian imaging scientists made a striking discovery — data from NASA’s Mars Global Surveyor spacecraft found gullies on the red planet. Gullies on Earth form when water runs down steep ...
Space & Earth / Space Exploration
Dec 06, 2011 |
not rated yet |
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By Simulating Gullies, Geographers Discover Ways to Tame Soil Erosion
(PhysOrg.com) -- Dead zones in critical waterways, accelerated loss of arable land and massive famines. They're all caused by the 24 billion tons of soil that are lost every year to erosion, a phenomenon that ...
Space & Earth / Earth Sciences
Oct 12, 2009 |
5 / 5 (3) |
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Gullies on Mars show tantalizing signs of recent water activity
(PhysOrg.com) -- Planetary geologists at Brown University have found a gully fan system on Mars that formed about 1.25 million years ago. The fan offers compelling evidence that it was formed by melt water ...
Space & Earth / Space Exploration
Mar 02, 2009 |
4.4 / 5 (19) |
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Model Suggests Origins of Mars Gullies
University of Arkansas researchers have used chemistry and geology to create a model that may explain the mystery of how modern-day gullies form on the surface of Mars.
Space & Earth / Earth Sciences
Feb 09, 2009 |
4.6 / 5 (8) |
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