Showing 20 articles starting at article 181
Categories: Geoscience: Landslides, Paleontology: Dinosaurs
Published The Science of tsunamis
(via sciencedaily.com) The word 'tsunami' brings immediately to mind the havoc that can be wrought by these uniquely powerful waves. The tsunamis we hear about most often are caused by undersea earthquakes, and the waves they generate can travel at speeds of up to 250 miles per hour and reach tens of meters high when they make landfall and break. They can cause massive flooding and rapid widespread devastation in coastal areas, as happened in Southeast Asia in 2004 and in Japan in 2011.
Published Deforestation darkening the seas above world's second biggest reef
(via sciencedaily.com) Converting Central American tropical forests into agricultural land is changing the color and composition of natural material washing into nearby rivers, making it less likely to decompose before it reaches the ocean, a new study has shown.
Published Puerto Rico is prone to more flooding than the island is prepared to handle
(via sciencedaily.com) Puerto Rico is not ready for another hurricane season, let alone the effects of climate change, according to a new study that shows the island's outstanding capacity to produce record-breaking floods and trigger a large number of landslides.
Published Slope stability model can help prevent landslides to protect communities and save lives
(via sciencedaily.com) Researchers hope industry and governments worldwide will use the SSSAFE model to help early warning systems mitigate landslide risks
Published The driving force behind tropical mudslides
(via sciencedaily.com) Geological knowledge is essential for predicting what areas in a tropical mountain range are more prone to have landslides, earthquakes and volcanic eruptions, and the catastrophic consequences that these events might have in the surrounding populations.
Published Global study of glacier debris shows impact on melt rate
(via sciencedaily.com) The work is a global assessment of Earth's 92,033 debris-covered glaciers and shows that debris, taken as a whole, substantially reduces glacier mass loss.
Published What causes pools below waterfalls to periodically fill with sediment?
(via sciencedaily.com) Deep pools below waterfalls are popular recreational swimming spots, but sometimes they can be partially or completely filled with sediment. New research showed how and why pools at the base of waterfalls, known as plunge pools, go through natural cycles of sediment fill and evacuation.
Published Groundwater monitoring with seismic instruments
(via sciencedaily.com) How can we determine how empty or full the soil reservoir is in areas that are difficult to access? Researchers have now demonstrated an elegant method to track groundwater dynamics in high mountains: They use seismic waves.
Published Grazing management of salt marshes contributes to coastal defense
(via sciencedaily.com) Combining natural salt marsh habitats with conventional dikes may provide a more sustainable alternative for fully engineered flood protection. Researchers studied how salt marsh management can be optimized for coastal defense purposes. They found that grazing by both cattle and small herbivores such as geese and hare and artificial mowing can reduce salt marsh erosion, therefore contributing to nature-based coastal defense.
Published New numerical method makes simulating landslide tsunamis possible
(via sciencedaily.com) Researchers have developed a new numerical method that paves the way for simulating landslide tsunamis.
Published Nature has enormous potential to fight climate change and biodiversity loss in the UK
(via sciencedaily.com) A new report details how nature can be a powerful ally in responding to the twin crises of biodiversity loss and climate change.
Published Coral reefs prevent more than $5.3 billion in potential flood damage for U.S. property owners, study finds
(via sciencedaily.com) Coral reefs provide many services to coastal communities, including critical protection from flood damage. A new study reveals how valuable coral reefs are in protecting people, structures, and economic activity in the United States from coastal flooding during storms.
Published Tremors triggered by typhoon talas tell tales of tumbling terrain
(via sciencedaily.com) A new method was developed for high-resolution detection of landslides based on seismic data. This method was applied to detect landslides that occurred during the transit of Typhoon Talas across western Japan in 2011. Multiple landslides were detected and located, including one in Shizuoka Prefecture, 400 km east of the typhoon's track. The results show that large and small landslides may follow the same scaling relationships. This method may help develop landslide emergency alert technology.
Published Policy decisions will affect coastal communities' risk more than climate change
(via sciencedaily.com) Coastal communities face increasing danger from rising water and storms, but the level of risk will be more closely tied to policy decisions regarding development than the varying conditions associated with climate change.
Published Twice as much carbon flowing from land to ocean than previously thought
(via sciencedaily.com) A new study provides new estimates of this elusive component of the global carbon cycle.
Published Chemical processes identified as key to understanding landslides
(via sciencedaily.com) A new study results are based on investigations of repeated mass movements and are expected to benefit planning, maintenance, and development of transportation infrastructure in affected areas.
Published Sea level rise up to four times global average for coastal communities
(via sciencedaily.com) Original source New research shows that coastal populations are experiencing relative sea-level rise up to four times faster than the global average. The study is the first to analyze global sea-level rise combined with measurements of sinking land. The impacts are far larger than the global numbers reported by the Intergovernmental Panel on Climate Change (IPCC). The high rates of relative sea-level rise are most urgent in South, South East and East Asia.
Published Post-wildfire landslides becoming more frequent in southern California
(via sciencedaily.com) Original source Southern California can now expect to see post-wildfire landslides occurring almost every year, with major events expected roughly every ten years, a new study finds. The results show Californians are now facing a double whammy of increased wildfire and landslide risk caused by climate change-induced shifts in the state's wet and dry seasons, according to researchers who mapped landslide vulnerability in the southern half of the state.