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Categories: Energy: Fossil Fuels, Geoscience: Landslides
Published Powerful volcanic blast not the cause for 2018 Indonesian island collapse
(via sciencedaily.com) The dramatic collapse of Indonesia's Anak Krakatau volcano in December 2018 resulted from long-term destabilising processes, and was not triggered by any distinct changes in the magmatic system that could have been detected by current monitoring techniques, new research has found.
Published Forests offer minimal protection against major flood events
(via sciencedaily.com) New research examining whether forests can mitigate flood risk suggests they may offer less protection against major events than had been hoped. Although the work, which was carried out in forest sites in Ireland and the UK, showed forests can suppress small storm flows it also underlined that they are likely to make minimal difference in reducing the devastating impacts of major flood events.
Published Climate uncertainty colors flood risk assessment
(via sciencedaily.com) Understanding how climate change will affect the flooding of rivers may become easier with a new framework for assessing flood risk that's been developed by an interdisciplinary team.
Published Rivers play key role in destructive coastal flooding, new research shows
(via sciencedaily.com) Rising oceans get more attention in climate change discussions, but rivers are rising, too, according to new research. The research shows that rivers need more attention in policy management and disaster preparation, both at the coast and farther inland.
Published Earthquakes and extreme rainfall lead to a significant increase in the rates of landslides in Nepal
(via sciencedaily.com) Researchers outline how they were able to establish a clear pattern between the strength of the monsoon season in Nepal and the amount of landsliding over a 30-year period between 1988 and 2018.
Published Urban areas more likely to have precipitation-triggered landslides, exposing growing populations to slide hazards
(via sciencedaily.com) Urban areas may be at greater risk for precipitation-triggered landslides than rural areas, according to a new study that could help improve landslide predictions and hazard and risk assessments. Researchers found that urban landslide hazard was up to 10 times more sensitive to variations in precipitation than in rural areas.
Published Evacuation during and after the 2018 Montecito debris flow
(via sciencedaily.com) A new study speaks to the importance of public awareness programs in keeping residents -- and emergency management offices -- informed about rare but potentially lethal natural events in their area.
Published Seismic forensics and its importance for early warning
(via sciencedaily.com) The catastrophic rockslide of February 7, 2021, in India's Dhauli Ganga Valley and the subsequent flood killed at least a hundred people and destroyed two hydroelectric power plants. Researchers traced the disaster minute by minute using data from a network of seismometers. The team posits that seismic networks could be used to establish an early warning system for high mountain regions.
Published Landslide disaster risk in the Kivu Rift is linked to deforestation and population growth
(via sciencedaily.com) New research shows how deforestation and population growth have greatly impacted landslide risk in the Kivu Rift. This is what researchers established from an analysis of six decades of forest cover and population trends in the region.
Published Sea-level rise may worsen existing San Francisco Bay Area inequities
(via sciencedaily.com) Researchers examined the number of households unable to pay for damages from coastal flooding to reveal how sea-level rise could threaten the fabric of Bay Area communities over the next 40 years.
Published Coastal wetlands are nature's flood defenses
(via sciencedaily.com) Coastal wetlands -- such as salt marshes -- provide even more flood protection than previously thought, reducing risks to lives and homes in estuaries, a new study reveals. Research showed that wetlands that grow in estuaries can reduce water levels by up to 2 meters and provide protection far inland.
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.