(Phys.org) —NASA research indicates hunks of frozen carbon dioxide—dry ice—may glide down some Martian sand dunes on cushions of gas similar to miniature hovercraft, plowing furrows as they go.
Space Exploration
Jun 11, 2013
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1
Researchers have developed a new method to estimate the risk of levee failure and flooding from burrowing animals like badgers and porcupines.
Plants & Animals
Dec 6, 2021
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118
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, ...
Environment
Oct 21, 2012
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0
In the United States, tens of millions of people live behind levees, but historically disadvantaged groups are more likely to live behind subpar levees and have fewer resources to maintain critical levee infrastructure, ...
Social Sciences
Sep 5, 2023
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2
After an extreme weather event, such as Hurricane Ian which devastated parts of Florida last month, most Americans choose to rebuild rather than move to less hazardous areas.
Environment
Oct 9, 2022
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121
Over the past 300 years, humans have dramatically altered rivers through mining, draining, dredging, levee construction, and other activities. Artificial levees, for instance, provide a barrier between rivers and their floodplains ...
Earth Sciences
Jun 17, 2022
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4
When Hurricane Ida roared to shore in Louisiana last month, a system of flood gates, levees, and pumps largely kept the water out of New Orleans. Natural barriers such as wetlands, islands, and even oyster reefs also played ...
Environment
Oct 15, 2021
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23
New Orleans finds itself in the path of Hurricane Ida 16 years to the day after floodwalls collapsed and levees were overtopped by a storm surge driven by Hurricane Katrina. That flooding killed more than 1,000 people and ...
Environment
Aug 28, 2021
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Alexander County sits near the confluence of the Mississippi and Ohio Rivers, at the southernmost tip of Illinois. The sparsely populated jurisdiction is perhaps best known for devastating floods resulting from repeated failures ...
Environment
Feb 4, 2020
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6
Recent research finds that repeated flooding events have a cumulative effect on the structural integrity of earthen levees, suggesting that the increase in extreme weather events associated with climate change could pose ...
Environment
Jan 21, 2020
0
13
A levee, levée, dike (or dyke), embankment, floodbank or stopbank is an elongated naturally occurring ridge or artificially constructed fill or wall, which regulates water levels. It is usually earthen and often parallel to the course of a river in its floodplain or along low-lying coastlines.
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