Study finds 2013-2014 winter was stormiest since 1940s
Fierce Atlantic storms that surged toward Europe’s western coastlines during the winter of 2013-2014 were the strongest in nearly 70 years — and such storms may become more frequent and even more powerful due to global warming.
The trend toward more storminess has implications for land-use planners and emergency management agencies in Europe, with the potential to dramatically change the equilibrium state of beaches, including permanent changes in beach gradient, coastal alignment and nearshore bar position.
“The extreme winter of 2013-2014 is in line with historical trends in wave conditions and is also predicted to increasingly occur due to climate change according to some of the climate models,” said Tim Scott, a lecturer in ocean exploration at Plymouth University and a co-author of the study. “Whether due to more intense and … or more frequent storms, it should undoubtedly be considered in future coastal and sea defense planning along the Atlantic coast of Europe.” Continue reading “Are West European beaches under a global warming siege?”→
New USGS study measures North Slope shoreline losses
FRISCO — In the eternal battle between land and sea, the sea appears to be winning in northern Alaska, where much of the coastline is retreating at a rate of more than three feet per year, according to a new study by the U.S. Geological Survey.
The region has some of the highest shoreline erosion rates in the world, according to the research, which analyzed more than 50 years worth of measurements.
FRISCO — As sea level rises, Hawaii’s beaches are on track to shrink by 20 to 40 feet during the next few decades, scientists announced in a new study.
“When we modeled future shoreline change with the increased rates of sea level rise projected under the IPCC’s “business as usual” scenario, we found that increased SLR causes an average 16 – 20 feet of additional shoreline retreat by 2050,” said lead author Tiffany Anderson, a post-doctoral researcher at the UHM School of Ocean and Earth Science and Technology. Continue reading “Rising sea level to take big bite from Hawaii beaches”→
FRISCO — A team of scientists have taken a close look at coastal erosion trends in Hawaii and determined that sea-level rise is the main driver, outweighing other factors like waves, sediment supply and coastal development.
The researchers from the University of Hawaii – Manoa, School of Ocean and Earth Science and Technology and the State of Hawaii, Department of Land and Natural Resources said that knowing that sea-level rise is a primary cause of shoreline will help resource managers and planners going forward. Continue reading “Sea level rise driving Hawaii coastal erosion”→
Coastline losses in the Sundarbans reaches 200 meters per year
By Summit Voice
FRISCO — Coastal development and climate change are eating away at the Sundarbans, the largest block of mangroves in the world, stretched along the coast of India and Bangladesh. In some areas, up to 200 meters of coast are disappearing annually, according to a report from the Zoological Society of London.
The losses are affecting the area’s natural protection from tidal waves and cyclones This will inevitably lead to species loss in this richly biodiverse part of the world, the scientists said.
“Our results indicate a rapidly retreating coastline that cannot be accounted for by the regular dynamics of the Sundarbans. Degradation is happening fast, weakening this natural shield for India and Bangladesh,” said ZSL’s Dr Nathalie Pettorelli, senior author of the paper. Continue reading “Stunning mangrove losses in Bangladesh and India”→
Impacts could be much greater near estuaries, lagoons and river mouths
By Summit Voice
SUMMIT COUNTY — When it comes to sea level rise, not many countries have as much to lose as the Netherlands, so it should be no surprise that Dutch researchers are closely tracking the impacts of coastal erosion.
In one of the latest studies, scientists from UNESCO, the Technical University of Delft and Deltares say the effects of coastline erosion as a result of rising sea-level rise in the vicinity of inlets, such as river estuaries, have been dramatically underestimated.