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Categories: Environmental: Wildfires, Geoscience: Landslides
Published New model developed to predict landslides along wildfire burn scars
(via sciencedaily.com) Researchers have augmented a physics-based numerical model to investigate and predict areas susceptible to debris flows. This augmented model eventually could be used in an early warning system for people living in high-risk areas, enabling them to evacuate before it's too late. Information from model simulations also could be used to design new infrastructure -- such as diversion bars that deflect fast-moving water away from homes and roads -- for high hazard zones.
Published New methodology helps predict soil recovery after wildfires
(via sciencedaily.com) A team of investigators devised a new methodology to enable predictions of how plant growth and water quality would change in the wake of wildfires.
Published Wildfire-smoke observations fill gap in estimating soot's role in climate change
(via sciencedaily.com) New research refining the amount of sunlight absorbed by black carbon in smoke from wildfires will help clear up a long-time weak spot in earth system models, enabling more accurate forecasting of global climate change.
Published Cats injured in wildfires at risk of deadly blood clots
(via sciencedaily.com) Cats injured in California wildfires are at risk of forming deadly blood clots, according to new research.
Published California's trees are dying, and might not be coming back
(via sciencedaily.com) The State of California is banking on its forests to help reduce planet-warming carbon dioxide in the atmosphere. But that element of the state's climate-change solution arsenal may be in jeopardy, as new research reports that trees in California's mountain ranges and open spaces are dying from wildfires and other pressures -- and fewer new trees are filling the void.
Published California's Dixie Fire shows impact of legacy effects, prescribed burns
(via sciencedaily.com) The 2021 Dixie Fire burned over nearly 1 million acres in California and cost $637 million to suppress, making it the largest and most expensive wildfire to contain in state history. Fire history largely determined how severely the wildfire burned, and low-severity fire treatments had the largest impact on reducing the worst effects of the fire, according to a research team.
Published Study reveals an unprecedented change in Europe's fire regime
(via sciencedaily.com) A study reveals an unprecedented change in the fire regime in Europe which is related to climate change. The affected areas are in Southern, Central and Northern Europe but this historical change in Europe's fire regime is more intense in the Mediterranean area.
Published Climate change will increase chances of wildfire globally -- but humans can still help reduce the risk
(via sciencedaily.com) New research highlights how the risk of wildfire is rising globally due to climate change -- but also, how human actions and policies can play a critical role in regulating regional impacts. The study shows that anthropogenic climate change is a 'push' factor that enhances the risk of wildfires globally.
Published Wildfires may have sparked ecosystem collapse during Earth's worst mass extinction
(via sciencedaily.com) New research reveals that wildfires may have been a key contributor to the total collapse of land ecosystems during Earth's worst mass extinction event over 250 million years ago.
Published Simultaneous extreme weather created dangerous cascades in U.S.
(via sciencedaily.com) Intense heat in the southwestern United States broke records last summer partly because it hit in tandem with an unusually severe drought, finds a new study measuring for the first time how the two extreme weather events dangerously interacted in real time.
Published Insight into past--and future--of Western US wildfires
(via sciencedaily.com) A new study examines the context surrounding the fires and offers insight into the historical role of large, high-severity fires -- and the future of wildfires -- west of the Cascades.
Published Mangrove and reef restoration yield positive returns on investment for flood protection, study shows
(via sciencedaily.com) Restoration of mangroves and coral reefs can be a cost-effective solution for coastal flood reduction in more than 20 countries across the Caribbean. Researchers used methods from the risk and insurance industry to provide rigorous valuations of these natural defenses and show that they can deliver a positive return on investment, with the benefits from reduced flood damage exceeding the costs of restoration. The results point toward new opportunities to support restoration efforts with funds from sources that support hazard mitigation, climate adaptation, and disaster recovery, including FEMA.
Published Wildfire smoke exposure negatively impacts dairy cow health
(via sciencedaily.com) Increasing frequency and size of wildfires in the United States over the past several decades affect everything from human life and health to air quality, biodiversity, and land use. The US dairy industry is not exempt from these effects. The Western states, where wildfires are especially prevalent, are home to more than two million dairy cows that produce more than 25% of the nation's milk. A new report examines how dairy cattle in the Western United States may be affected by unique air pollutants from wildfire smoke.
Published Study explores uncertainties in flood risk estimates
(via sciencedaily.com) Flood frequency analysis is a technique used to estimate flood risk, providing statistics such as the '100-year flood' or '500-year flood' that are critical to infrastructure design, dam safety analysis, and flood mapping in flood-prone areas. But the method used to calculate these flood frequencies is due for an update, according to a new study.
Published Earliest record of wildfires provide insights to Earth's past vegetation and oxygen levels
(via sciencedaily.com) Original source While wildfires over recent years have raged across much of the western United States and pose significant hazards to wildlife and local populations, wildfires have been a long-standing part of Earth's systems without the influence of humans for hundreds of millions of years.
Published New fire shelter prototypes could buy time for wildfire firefighters
(via sciencedaily.com) Original source Temperatures inside new wildfire shelter prototypes remained within survival limits for longer, and the shelters took longer to break open, compared with an industry standard.
Published Landslides can have a major impact on glacier melt and movement
(via sciencedaily.com) Using satellite imagery to study the effects of a 2019 landslide on the Amalia Glacier in Patagonia, a research team found the landslide helped stabilize the glacier and caused it to grow by about 1,000 meters over the last three years.
Published Flood risk for Iowa farmland
(via sciencedaily.com) Researchers have created a detailed set of maps examining the flood risk for all farmland in Iowa. The maps show 450,000 acres of crops in areas with a 50% chance of flooding, and losses from flooding averaging $230 million annually.
Published Drenching rains to pose greater threat to fire-damaged areas in West
(via sciencedaily.com) The western United States this century is facing a greatly heightened risk of heavy rains inundating areas recently scarred by wildfires, new research warns. Such events can cause significant destruction, including debris flows, mudslides, and flash floods, because the denuded landscape cannot easily contain the drenching moisture.
Published Overlooked channels influence water flow and flooding along Gulf Coast
(via sciencedaily.com) An unnoticed network of channels is cutting across the coastal plain landscape along the Gulf Coast and influencing how water flows, according to new research that could help predict flooding from major storms in the future.