Articles tagged with Floods
Researchers from University of Jyväskylä recommend addressing vulnerabilities in coastal communities, such as uncontrolled shrimp farming and pollution. They suggest supporting environmentally friendly livelihoods like freshwater harvesting and agroforestry to promote sustainable development in mangrove forest areas.
Researchers introduce a performance-based framework that integrates hydroclimate variability, hydrology, machine learning, community knowledge and feedbacks between physical and social systems. This approach enhances understanding of flood risks while emphasizing long-term community resilience.
A new study reveals Arabia's rainfall was significantly more extreme in the past, with the region once resembling a vegetated savannah. The findings underscore the critical need for enhanced climate resilience and disaster preparedness to address the growing threat of extreme weather events.
Global glacier mass loss has increased by 36% since 2000, with 6,542 billion tons lost between 2000 and 2023. This results in an 18 mm annual contribution to global sea-level rise, making glaciers the second-largest contributor after ocean warming.
Global glacier melt accelerated over the last decade, with a 36% increase in meltwater compared to the previous decade. This poses significant risks to drinking water supplies, particularly in South America and Asia due to rising sea levels and increased flooding after the melt season.
A new study by the University of Graz finds that long-lasting intense cut-off lows will become more frequent in the Northern Hemisphere due to climate change. These storms can lead to prolonged heavy precipitation and increased flood risk in regions such as Canada, northern Europe, Siberia, and China.
Research highlights the impact of wind on wildfire growth, with areas in the US Southeast vulnerable to extreme heat and precipitation events. Meanwhile, a study suggests the 'drought' of EF5 tornadoes may be due to stricter ratings rather than changes in tornadoes.
The European Wetland Map combines various GIS data on wetland types and their distribution to create a standardized dataset that enhances understanding and management of European wetlands. The map informs policy decisions and supports climate mitigation and biodiversity policies.
A collaborative effort investigates the Sikkim Himalaya flood, exploring its drivers, causes, and downstream impacts. The research aims to inform disaster risk reduction and build resilience in vulnerable regions.
A recent study analyzed the devastating flood disaster in the Himalayas in October 2023, which destroyed large areas along and surrounding the Teesta River. The researchers reconstructed the exact time of its onset using high-resolution satellite images and digital elevation models.
The 2023 Sikkim flood was triggered by a landslide into South Lhonak Lake, releasing massive amounts of water and sediment that caused widespread devastation. Climate warming intensified the event, with heavy rainfall priming the landscape for landslides that compounded sediment transport and downstream destruction.
A recent discovery in the Amazon reveals a unique drainage and irrigation system that enabled the Casarabe society to produce maize throughout the year. This innovation allowed for at least two harvests of maize per year, ensuring a stable food supply.
A recent study has employed machine learning algorithms to improve the accuracy of flood season rainfall predictions. The findings show that combining climate system numerical models with ML-based correction methods results in substantial improvements, increasing prediction scores by up to 7.87%.
A new study reveals that a colossal 'megaflood' refilled the Mediterranean Sea around 5.97-5.33 million years ago, marking the end of the Messinian Salinity Crisis. The Zanclean Megaflood is believed to have had discharge rates and flow velocities dwarfing any other known floods in Earth's history.
A new study using satellite images tracks the evolution of a glacier lake in the Karakoram Mountains, revealing its life cycle and potential hazard to nearby communities. The research highlights the importance of monitoring glacier surges and lakes to reduce future damage.
A survey conducted by Professor Takahiro Endo at Osaka Metropolitan University found that Hiroshima Prefecture provided a free water inspection service for well owners after the 2018 floods, promoting their initiative to open inspected wells to the public. This collaborative effort supplemented local governments' emergency water supply...
The project creates a comprehensive U.S.-Japan flood risk data inventory and develops a two-way coupled, multi-scale, agent-based model that considers marginalized groups. Researchers will use the developed model to evaluate the impact of insurance policies on these groups.
Research links intensifying hydroclimate whiplash to the atmosphere's ability to absorb and release more water as temperatures rise. This 'whiplash' sequence in California has increased fire risk by twofold, with severe drought followed by record-breaking rainfall.
Researchers identified mesoscale convective systems as the primary cause of severe flash flooding in Nusantara, with MJO and equatorial waves playing a crucial role in MCS development. Local factors also modulated the intensity and duration of the event, highlighting the need for improved rainstorm forecasting and risk management.
A study by North Carolina State University found that 24% of developed land in the US is within 250 meters of a 100-year floodplain, despite efforts to reduce flood risk. This 'safe development paradox' creates a false sense of security, leading to increased development in areas threatened by flooding.
A study in Nature Medicine reveals large floods are associated with higher death rates from major mortality causes, including infectious diseases and cardiovascular conditions. Floods disproportionately affect older people and females, with increased risks of injury deaths and neuropsychiatric conditions.
The 2024 Global Water Monitor Report reveals a worsening trend of intense floods, prolonged droughts, and record-breaking climate extremes. The report found that rising temperatures are changing the way water moves around the planet, with devastating consequences for human populations and ecosystems.
The 105th Annual Meeting of the American Meteorological Society will address key issues in weather, water, and climate. The meeting features a Presidential Forum on physical, social, cultural, and economic impacts of climate change, with experts from the region of the Mississippi River Delta.
New research maps 35 years of river changes on a global scale, revealing 44% of downstream rivers saw decreases in water flow, while 17% of upstream rivers saw increases. This shift has significant implications for flooding, ecosystem disruption, and freshwater supplies.
A new analysis of over 3,000 studies reveals that flooding increases preterm births by around 3% and low birth weights in children born during flood events. The study highlights the need for emergency services to evacuate pregnant people before flooding events.
A new study reveals that lower-quality public housing units are disproportionately located in areas with high flood risk, putting residents at risk of catastrophic damage. The research also highlights the disproportionate impact on people of color and those with limited ability to recover from flooding.
Researchers from Tokyo Metropolitan University found that agricultural land preserved around river confluences can reduce flood risks, with stronger correlation near confluence points. This Eco-DRR approach uses existing environmental resources to improve resilience against flooding.
Researchers call for a shift away from outdated bathtub modeling, which oversimplifies flood risks, and towards dynamical modeling that accounts for key factors like storm drains and levees. The study found that bathtub models are consistently inaccurate, with scores below 0.5 on the critical success index.
A study by USC Dornsife scientists used satellite imagery, digital models, and field data to analyze the June 2021 Melamchi flood's triggers. The research found that heavy monsoon rainfall combined with excessive snowmelt overwhelmed river systems, causing catastrophic flooding.
A state-of-the-art flood monitoring dashboard is being developed in Central Appalachia to test its reusability and replicability. The project uses generative artificial intelligence to provide communities with the information and tools needed to build resilience in the face of climate change.
A new AI tool generates realistic satellite images of future flooding, which can help communities visualize and prepare for approaching storms. The method combines a generative artificial intelligence model with a physics-based flood model, producing more accurate and realistic images than an AI-only approach.
A new UBC-led study reveals that preserving key natural ecosystems across Canada can significantly reduce rainwater runoff and protect homes and livelihoods. The research identifies 201,000 square kilometres of watersheds as critical for flood prevention, supporting wildlife while reducing reliance on costly infrastructure.
Geology researchers from UTEP are partnering with Bhutanese scientists to better understand and mitigate the impact of glacial floods on rural mountain villages. The project aims to use geophysical methods to identify changes in water levels and sediment transport, potentially helping vulnerable villages create early warning systems.
Researchers found a 10.8% price discount in the AEP 100 flood zone and a 4.4% discount in the AEP 500 flood zone, highlighting the financial burden of flood risk on homebuyers. The study emphasizes the need for policymakers to safeguard communities and manage real estate markets as climate patterns intensify.
Researchers developed a machine-learning tool that provides accurate predictions for flood-prone areas, using historical data and weather-based predictors. The model can predict short-term river discharge with high accuracy, giving real-time data on water movement through the river.
The partnership aims to improve the speed and accuracy of flood damage assessments by combining multi-modal data sources and a novel vision language model. The system will enable first responders to quickly allocate resources and respond more efficiently to weather disasters.
A new study will use advanced integrated hydrologic models to predict New England's water budget changes, tracking shifts in the water table, rainstorm intensity, and drought timing. The research aims to help prepare for an uncertain future by understanding where climate change is altering weather patterns.
A new study reveals nearly one in five people in Small Island Developing States are exposed to coastal and inland flooding, trebling to over 60% in some countries. Climate change is exacerbating the risk of flooding across these nations, with even a 1.5°C increase projected to affect over 20% of populations.
A new chromosome-scale reference genome of grass pea has been published, improving on earlier draft assemblies and offering potential for climate-smart agriculture. The updated genome allows for improved breeding and gene editing to develop varieties with improved agronomic characteristics or low toxin content.
A new study from the University of Michigan reveals that triple exposure areas, where flood risk, social vulnerability, and climate change denial converge, hinder preparedness and resilience. These regions often have underestimated flooding risks, low income, mobility limitations, and skepticism towards climate change.
Researchers found that restoring coastal marshes can significantly help protect coastlines at a reasonable cost. A study by MIT graduate student Ernie I. H. Lee and professor Heidi Nepf shows that enhancing salt marshes in front of protective seawalls can reduce construction costs while still providing adequate protection from storms.
A new study uses deep learning to infer the frequency of atmospheric blocking events over the past 1,000 years, shedding light on their potential impact under climate change. The model was trained using historical data and large ensembles of climate model simulations.
Researchers at Rice University develop OpenSafe.AI, a system that leverages responsible AI and hazard models to provide timely insights for emergency response organizations and communities before, during, and after tropical cyclones and coastal storm events. The goal is to enable better preparation and navigation for severe weather.
Researchers found that extreme temperatures and humidity projected for the Amazon under climate change may increase methane-producing microorganisms in flooded areas and reduce methane uptake in upland forests by 70%. This could lead to a shift in the balance of greenhouse gas emissions, with significant global impacts.
Research finds a global imbalance in hydro-hazard studies, with more funding in wealthy regions despite greater disaster impacts in low-income areas. The study calls for more targeted research efforts to address this disparity and reduce the impact of future disasters.
A new study found a significant link between intimate partner violence and certain climate shocks, such as storms and floods, in 156 countries. Countries with higher GDP had lower rates of intimate partner violence, highlighting the need for climate mitigation efforts to reduce violence against women.
A new study reveals the flood insurance program's effects differ greatly among communities, with higher-population and wealthier areas benefiting more from discounts on premiums. Lower-income communities also see benefits, but only in areas with less racial and ethnic diversity, realizing a gain of about $6,000 per household.
A new study led by University of Illinois Chicago scientist Akintomide Akinsanola found that most Americans can expect wetter winters in the future due to global warming. Winter precipitation and extreme weather events are expected to increase across most of the country, with six regions experiencing more frequent very wet winters.
The SUPERSLUG initiative aims to forecast the impact of sediment slugs on river catchments and communities. The project will use a range of sensors and numerical models to provide comprehensive predictions of where and how long-term effects might be felt, up to decades or centuries after an event.
Coastal forests face uncertain future as sea levels rise, with trees more vulnerable to saltwater flooding than marshes. Tree ring analysis reveals nuanced effects of flooding, temperature, and precipitation on tree growth, highlighting species- and site-specific factors.
A new study found that most US cities are successfully limiting floodplain development by applying existing tools and strategies. In New Jersey, municipalities have consistently limited new housing in floodplains and impervious surface growth using conventional local ordinances and modest government capacity.
A new study finds that slow-moving landslides are frequently excluded from estimates of landslide risk, threatening people living on unstable slopes. Urban growth, climate change, and flood risk drive population shifts to safer areas, yet poorer populations may have limited options.
A nationwide study found that over 840,000 new residential properties were built in floodplains across the US, with about 398,000 in Florida. Despite this, many communities have taken proactive measures to limit floodplain development through smart regulations and practices.
Researchers found that coastal dams can either increase or decrease flood risks, depending on the duration of a surge event and friction from water flow. The study, published in the Journal of Geophysical Research: Oceans, analyzed data from Charleston Harbor and other estuaries to make this surprising discovery.
Research explores changes in global precipitation patterns and how they relate to climate change. Bird nests are found to predict rainfall in rural India, while heat stress is increasing in the southeastern US, particularly at night. European 'bomb' storms may intensify due to warming climate.
A new study finds that summer storms are stronger and more frequent over urban areas than rural areas, leading to increased flooding in cities. The research highlights the need for urban planners to prepare for floods as cities expand and climate change alters global weather patterns.
A new study found that soil erosion significantly contributed to devastating desert floods in Libya, claiming over 11,300 lives. The research highlights the urgent need for advanced earth observations programs to monitor arid areas due to climate change.
A global study published in PNAS found that most cities (over 60%) receive more rainfall than their surrounding rural areas, leading to worsened flash flooding. This is due to the convergence of air toward city centers caused by tall buildings and population density.
Entomology professor Esther Ngumbi is studying how flooded conditions affect tomato plants, including changes in microbial community, volatile organic compounds, and gene expression. She warns that increased flooding can undermine climate-resilient crop research.
A new model developed by scientists can predict intense, localized heavy rainfall events caused by rapid air rises in clouds. This breakthrough offers potential to improve public safety and preparedness through early warning systems.