Surfing in / Erosion

Tracking Sediments’ Fate In Largest-Ever Dam Removal

Erosion, News
Mar
8

Scientists tracking the aftermath of the largest dam removal in U.S. history say the dismantling of a dam in northwestern Washington state has unleashed about 34 million cubic yards of sediment and debris that built up for more than a century.

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NASA Wallops Recovery Continues From Hurricane Sandy

Hurricane Sandy removed about 700 feet of protective berm and about 20 percent of the beach protecting Wallops Island, home to NASA Wallops’ launch pads and launch support facilities.

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Thawing Permafrost: Huge Factor in Global Warming

Thawing permafrost is emitting more climate-heating carbon faster than previously realised. Scientists have now learned that when the ancient carbon locked in the ice thaws and is exposed to sunlight, it turns into carbon dioxide 40 percent faster.

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Coastal Erosion Induced by Human Activities: A Northwest Bohai Sea Case Study

Erosion, News
Feb
9

Using mooring hydrodynamic observation, cross-shore profiles, and topographic-map and satellite-image comparisons, this study shows dramatic coastal erosion on the Qinhuangdao coast (northeast Bohai Sea, China). Sediment starvation induced by dams mainly caused this fast coastal retreat.

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Shoring Up the Nation’s Crumbling Coastlines

Hurricane Sandy pummeled the beaches of the Northeast, stripping away sand and dunes, and ploughing through seawalls. Can beaches be rebuilt to face fiercer storms and rising seas? And is there even enough sand to do it? Ira Flatow and guests discuss engineering the nation’s coasts for “the new normal.”

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Hydropower Dams Hamper Migrating Fish Despite Passage Features, Study Finds

Erosion, News
Jan
17

Major hydropower dams on the U.S. Atlantic coast , constructed with state-of-the-art features designed to allow migratory fish to pass through them on their way to spawn upstream, have failed in that regard, raising questions that should be addressed as more dams are planned worldwide.

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Hawaiian Islands Are Dissolving from Within, Study Says

Erosion, News
Dec
21

Most of us think of soil erosion as the primary force that levels mountains, however geologists have found that Oahu’s mountains are dissolving from within due to groundwater.

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Impact Of Coastal Erosion in Australia

Erosion, Inform
Dec
10

Coastal protection of the shoreline is rarely required in Australia, however in a few locations the dynamic shoreline has become a problem, in some cases a major and expensive problem, and in almost all of these cases the problem is related to human interference or encroachment on the shoreline… A comprehensive article focusing on coastal erosion in Australia by CoastalWatch.

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Coastal Erosion Threatens Cape Breton Homes, Nova Scotia

Sea ice once offered some protection, but there’s much less ice these days as the wind and waves are bringing the shoreline closer to their front doors, some Cape Breton residents fear their homes will be washed away…

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