Articles tagged with Floods
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A study has shown that wind variations over the southern Red Sea are the main drivers of sea-level extremes, driving levels up and down depending on wind direction. This understanding is crucial for coastal planning and management to mitigate the impact of storm surges and coastal erosion.
A Brazilian study proposes a methodology to involve secondary school students in mapping natural disaster hazards and impact prevention. The students, aged between 2019-2021, were trained to identify areas prone to flooding and landslides using aerial photographs taken by drones.
Research led by Dr. Petra Holden from the University of Cape Town found that catchment restoration through alien tree management can reduce climate change's impact on drought streamflow. The study shows that clearing moderate levels of invasion can result in a 3-16% amelioration of human-derived climate change impact.
The Bureau of Reclamation released a new report evaluating current and emerging snow measurement technologies to enhance water supply forecasting. The report identifies under-utilized emerging technologies with potential to improve forecast accuracy in the near term.
A study by University of Texas at Austin researchers found that narrow but deep channels across the coastal plain landscape play a significant role in moving water, particularly during floods. The channel networks covered over 12,000 square miles and were separated into distinct drainage basins.
Researchers used AI to predict flood damage in the US, finding a high probability of flood damage for more than 1.01 million square miles across the country. The study suggests that recent FEMA maps do not capture the full extent of flood risk, with 84.5% of reported damage not within high-risk flood areas.
Scientists monitoring hundreds of US streams with sensor technology are gaining insights into how freshwater vital signs shift in response to land development and climate change. The data, made publicly available, will help track changes over time and provide a better understanding of the 'pulse' of streams.
Research found that anaerobic microbial transformation on Tonle Sap Lake's floodplains produces substantial amounts of dissolved carbon dioxide, highlighting the importance of this process in tropical freshwater ecosystems. This discovery has significant implications for understanding global carbon cycles and the impact of climate change.
Researchers identified that the changing weight of ice sheets caused the entire landscape to tilt, changing the course of the Missoula megafloods. This finding provides a new perspective on Washington state's Channeled Scablands, carved by massive floods at the end of the last ice age.
Scientists from Nagoya University investigate the formation of air channels in wetland plants, which help them survive floods and droughts. The study reveals that a phytohormone called auxin is required for normal root growth, and two factors lead to the induction of aerenchyma formation in response to flooding.
Climate change projections indicate a dramatic increase in extreme rainfall-surge events along the US East and Gulf coasts, with compound flooding events expected to worsen flood risks. Sea level rise and storm intensification are identified as key drivers of this phenomenon.
Researchers have developed an interest in studying glacial lakes and their impact on glacier behavior and downstream ecosystems. Over a 35-year period, a team of scientists has produced a detailed inventory of glacial lakes and dams in Alaska and northwest Canada.
Geosapiens receives major funding from the Canadian Space Agency to develop innovative approaches to flood mapping. The project aims to integrate satellite imagery data for real-time flood zone identification and risk assessment.
A Brazilian study found a correlation between dealing with COVID-19 and environmental disasters, highlighting the need for improved infrastructure and community resilience. The study also identified a lack of continuity in funding for disaster relief and pandemic response.
A team of researchers, including NOAA and William & Mary, has developed the world's first three-dimensional operational storm surge model, called SCHISM. The model forecasts coastal flooding in complex coastal regions by incorporating fine-scale features like engineered structures and culverts into its forecasts.
Research reveals that the 2020 Yangtze River flooding was caused by an unusual anticyclone and frequent latitudinal swings of the Meiyu front. The study aims to improve forecasting skill before and during monsoon season.
A new study reveals that Indigenous communities in Canada are more vulnerable to flood-related hardship due to pre-existing socioeconomic factors. The research highlights the importance of considering social vulnerability when assessing flood risk in these communities.
The frequency of thunderstorms in some fast-growing African coastal cities has doubled over the past 30 years, mostly linked to land use change. Deforestation exacerbates storm activity, causing increased rainfall and flooding in urban areas.
The study predicts that the Balearic Islands will lose between 56 and 65% of their beach area permanently due to climate change. This loss is mainly attributed to sea level rise, which will cause devastating inroads on the coastline.
The Forest Condition Monitor tool uses color-coded visualization to identify areas of high-stress forests across Europe, allowing for targeted conservation efforts and research. Scientists can study these regions to understand eco-physiological processes and warn forest owners of potential risks.
A new study ranks live oaks and American sycamores as champions among 17 "super trees" that can mitigate air pollution and climate change in urban areas. The research provides a three-part framework for selecting suitable trees, identifying high-impact planting sites, and engaging with community leadership to make the project a reality.
A collaborative research study found Cryptosporidium prevalence to be 20-25% across Belgium, France, and the Netherlands, posing a serious threat to dairy cattle and human life. The parasite is concerning due to its ability to become infectious in chlorine, increasing the risk of infection through traditional methods.
A new study estimates that burrowing animals like badgers and porcupines can weaken levees to the point of collapse, causing localized flooding. Dens at higher elevations in a levee are more dangerous than those near the bottom, with potential for catastrophic failure.
Researchers created a single-cell map of corn's root, identifying key regulators of cellular diversity that help crops tolerate drought and flooding. The study found that the genetic regulator SHORT ROOT (SHR) plays a crucial role in expanding cortex tissue, leading to increased tolerance of climate stressors.
Research found that households in different cultures are motivated to adapt to climate change by factors such as self-efficacy and perceived costs. However, these drivers vary across countries, with previous flood experiences having little effect on adaptation intentions in some regions, but discouraging it in others.
A new study published in Science of the Total Environment found that forests can reduce storm flows, but only when small-scale floods occur. In contrast, forests offer little to no protection against larger and more devastating flood events.
A new framework assesses flood risk by integrating climate model outputs and hydrologic models to predict uncertainty. The study found that climate uncertainty dominates overall uncertainty, and areas prone to flooding in the future will be mostly the same as current ones.
A recent study found that earthquakes and extreme rainfall lead to a significant increase in landslide rates in Nepal during the monsoon season. The research, published in Nature Communications, reveals that landscape damage caused by the April 2015 Gorkha earthquake increased landslide risk by six times.
New research from a University of South Carolina scientist reveals that rising rivers pose a danger to coastal communities and those farther upstream due to climate change. The study shows how river processes affect entire watersheds down to the coast, contributing to more intense flooding.
International researchers used machine learning to forecast marsh establishment under various environmental conditions, revealing that controllable local factors are more important than global climate change. The study suggests smart management of tidal flats can counteract threats and strengthen wetlands.
A new prediction framework can forecast extreme climate events like floods and heatwaves up to two days in advance, allowing for crucial preparation time. This network-based approach analyzes large-scale connectivity patterns in observational data to improve forecasting accuracy.
A record-breaking summer of flooding in eastern Asia prompted an international team to research and submit findings on the event to a special journal issue. The studies highlighted unusual behavior of an anti-cyclone and its connection to the Indian Ocean's warming, leading to persistent extreme rainfall.
A new Digital Solutions Hub will provide a gateway to interconnected toolkits and resources, integrating existing data sources on pollution, flooding, biodiversity, geology, carbon capture, and environmental health. The hub aims to improve decision-making by providing cross-sectional data for informed decisions in various sectors.
A new study has found that Greenland's ice sheet is experiencing increased frequency and intensity of extreme ice melting events, leading to a 21% rise in meltwater runoff over the past four decades. This raises global flood risk and disrupts marine ecosystems.
A study has created a massive database of academic papers documenting global adaptation actions to climate change. The research found that people are taking action, but these efforts tend to be fragmented and may not be enough to deal with the expected effects of climate change.
Satellite images reveal a substantial increase in saltmarsh area and stable trends of tidal flat areas after 2012, driven by decreased anthropogenic activities and increased conservation and restoration efforts. Conservation efforts have positively impacted China's coastal wetlands, mitigating the loss of these important ecosystems.
A study found that climate change increased the probability of heavy rainfall by 70% in Brazil's Minas Gerais state, leading to severe flooding, deaths, and massive damage. The extreme event caused over 90,000 people to be temporarily homeless and resulted in significant economic losses.
A study by University of Cincinnati professor Michael J. Fry found that a single large warehouse would be the most cost-efficient approach for disaster relief supplies, but a single location is vulnerable to destruction. The research suggests cooperation between government and relief organizations can improve response effectiveness.
Research finds climate stabilized due to increased rock weathering and erosion, which converts CO2 into insoluble carbonate; this process took 20,000-50,000 years. Lithium isotope analysis supports theory, showing increased weathering and erosion during Paleocene-Eocene Thermal Maximum.
A new methodology creates a watershed-scale flood model based on LiDAR data, providing precise elevation readings and riverbed depth information. The system can predict flood conditions and provide warnings to area residents, making it applicable to large rivers and smaller streams.
The Mars rover's images show a complex watery cycle for the lake at Jezero Crater, with steady water flow and dramatic deposits from high-energy floods. The findings help guide the rover's sampling strategy, focusing on rocks that could contain signs of past life.
A new model developed by Skoltech researchers optimizes satellite radar system design, balancing performance characteristics with other mission parameters. The study identifies optimal designs for small satellite platforms, particularly in the 8-12 GHz and 4-8 GHz frequency bands.
Heavy precipitation affected a significant portion of China, with the Yangtze River basin experiencing extreme flooding and multi-day rain events. The study found that the East Asian Summer Monsoon front played a dominant role in bringing persistent precipitation to the region.
Researchers from GFZ and NGRI used seismic data to identify three phases of a catastrophic flood, including rockslide and debris flow. The study found that seismic networks can be used to warn of impending flash floods, with available warning times varying by distance and speed.
Researchers found that lake breach floods played a crucial role in shaping the Martian surface, creating river valleys with nearly a quarter of the Red Planet's total volume. The study's findings suggest that these floods had a lasting impact on the surrounding landscape, influencing the formation of other nearby river valleys.
International research reveals that children will face a disproportionate increase in lifetime extreme event exposure due to climate change. The study, led by Prof. Wim Thiery of VUB, quantifies the impact of climate change on children born between 1960 and 2020, showing they will experience more heatwaves, droughts, crop failures, riv...
Researchers say the July 2021 flood in western Germany was more destructive than predicted, with mobilization of dead wood and sediment contributing to its impact. The event highlights the need for science to better understand precipitation-induced floods and their associated self-reinforcing effects.
Researchers developed WebFRIS, a web-based platform to provide socio-economic vulnerability analysis and simplify flood risk information. The tool can help formulate targeted solutions and enhance social capacity and resilience in flood-prone regions.
Researchers have created a global database of 63 tailings flows since 1928, revealing catastrophic events occur every two to three years on average. The study highlights the importance of understanding water-to-solids ratios and downstream terrain in preventing mass casualties and environmental damage.
A new assessment indicates that higher emissions will significantly impact Venice's flood risk, emphasizing the need for improved projections and protection infrastructure. The study highlights the importance of accurate sea level projections and the potential for extreme events like meteotsunamis to exacerbate flooding.
Climate change is altering flooding patterns, with moderate storms producing less runoff due to increased soil moisture, but extreme storms causing more devastating flooding. The study's findings have significant implications for infrastructure design and flood risk mitigation strategies.
A new study predicts extreme sea levels will become 100 times more frequent worldwide, with an annual occurrence by the end of the century. The research, led by Claudia Tebaldi, suggests rising temperatures will have a significant impact on coastal regions, particularly in the tropics and lower latitudes.
A new study assesses the impacts of sea level rise and wetland change on storm surge flooding in the Chesapeake Bay region. The results show that even relatively weak storms in 2100 could have a greater impact than high-intensity storms today, with significant property damage and effects on people.
A study by North Carolina State University found that surface waters in eastern North Carolina were more likely to face dual contamination from human and swine waste after Hurricane Florence. The presence of Arcobacter, a pathogen not associated with human or swine fecal markers, was also discovered.
Researchers at the University of Texas at Austin tracked water storage in 14 major US aquifers over 15 years, finding that irrigation habits can be managed more effectively in humid regions. The study highlights the importance of surface water in replenishing groundwater, which helps dampen the impacts of irrigation.
Researchers say surprise is a key factor in disastrous river floods, with improved flood warnings and protection measures contributing to declining casualties. Asia is the worst-hit region, with over 125 million people affected annually by such disasters.
Research in the southern Murray-Darling Basin has found a downward spiral in water availability, driven by accelerated changes in climate. Since the 1990s, cool season rainfall and river heights have significantly decreased due to increased evaporation and changed precipitation patterns.
A review of previous scientific studies on pollutant release from sediments during extreme flood events reveals significant risks to human and environmental health. The study highlights the need for good river management to address long-term consequences of pollutants in riverbeds.
A new study updates the world scientists' warning of a climate emergency, highlighting worsening environmental conditions despite reduced fossil fuel use during the COVID-19 pandemic. The authors emphasize the need for profound changes in human behavior and policy shifts to mitigate the crisis.
Researchers at Texas A&M University developed a framework to assess community resilience after natural disasters by analyzing location-based data from essential establishments. The study found that communities with low resilience experienced more flooding, but the level of impact did not necessarily correlate with recovery time.