Articles tagged with Floods
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The TRMM satellite measured heavy rainfall totals from ex-tropical storm Paul, which left up to 11 inches of rain in northern Australia. The data confirmed significant flooding, with areas receiving between 100-200mm of rainfall and some reaching up to 300mm.
Agricultural Research Service scientists discover that sugarcane can tolerate standing water for up to two weeks without adverse effects on yield or sugar content. This finding provides relief for growers under strict regulations to reduce phosphorus runoff into the Everglades.
Researchers created a miniature river delta to study flooding patterns and develop a mathematical model capable of predicting catastrophic floods. The model was able to reproduce the statistical behavior of flooding by analyzing how long it takes to fill a channel with sediment, allowing for enhanced flood hazard prediction.
A Purdue University researcher projects that Midwestern states like Indiana, Illinois, Wisconsin, and Michigan will face more winter and spring flooding, as well as dry summer and fall seasons, if average temperatures rise by 2070. The study suggests a 28% increase in precipitation in these states during the same period.
To address global food security challenges, researchers recommend embracing agricultural biotechnology, aquaculture, and crop breeding to improve yields in dry areas. They also suggest using nitrogen more efficiently to reduce water pollution and greenhouse gas emissions.
Australians in New South Wales Territory face heavy rainfall and potential flooding due to Tropical Cyclone Olga's remnants. The region is expected to experience widespread moderate to heavy rainfall over the next couple of days.
Researchers developed a new technique to manage dams in the Columbia River basin for a warmer future climate. The approach reduced summer losses in hydropower due to climate change by about a quarter, while bolstering flows for fish and minimizing flooding.
Researchers detected ocean internal tides using seismic imaging, revealing a new tool for studying ocean mixing. Meanwhile, Arctic ice was found to be 'rotten' due to uniform temperature, threatening marine ecosystems and climate science.
The Portable Lightweight Ubiquitous Gasket (PLUG) system, developed by Wil Laska, passed its second test in November 2009, demonstrating the ability to fill with water, float on flood currents, and adhere to breach sites. Four technologies were tested, including a large balloon or tube that worked as hypothesized.
The TRMM satellite measured heavy rainfall from last week's coastal low pressure area 'Ida', which drenched the U.S. east coast and caused flash floods. Heavy rain amounts were found in Alabama, North Carolina, and Virginia with maximum values exceeding 240mm.
Satellite imagery and weather data indicate that Ida's coastal low pressure area has moved away from the US east coast, with its western edge passing over the easternmost part of the country. The system is expected to continue moving southeastward, leaving behind significant flooding in eastern Virginia and northeast North Carolina.
Ida has reformed as a powerful coastal low pressure system bringing heavy rainfall, strong winds, coastal erosion and tidal flooding to the Mid-Atlantic region. The system will continue to affect areas from North Carolina to New Jersey with significant flooding and high water expected
Former Ida has strengthened into a powerful low-pressure system causing severe flooding from northeast North Carolina to coastal Virginia. The storm is expected to continue bringing heavy rains, with isolated totals around 6 inches possible through Friday morning.
The TRMM satellite revealed most of Ida's heaviest rainfall was located just off the coasts of Nicaragua, Honduras, and Belize. The satellite data also showed that the heavy rainfall tapered off except for a few intense thunderstorms near the northeastern coast of Honduras.
Scientists from Tufts University have proposed a link between cholera outbreaks and fluctuating water levels in the region's three principal rivers. The researchers found two distinctive epidemic patterns associated with seasonal cycles of low river flows and floods.
Typhoon Mirinae made landfall in Vietnam with strong thunderstorms, leaving behind floods, destruction, and death. The storm had maximum sustained winds near 57 mph and caused serious flooding, power outages, and landslides, taking at least 10 lives.
Researchers used photography and detailed geological mapping to identify 30 tombs on fracture traces, which can lead to flooding and damage. The team plans to use this information to stop flooding by diverting water away from tombs.
The study highlights the need for a portfolio of measures to minimize climate change impacts while allowing city growth. It emphasizes protecting homes from flooding and reducing carbon emissions, water usage, and moving towards cleaner transport.
A new study by University of Southampton researchers found that sea levels have been rising across the south coast of England, substantially increasing the risk of flooding during storms. The team's data set covers over 150 years of historic sea level change, revealing a steady rise of 1.2-2.2 mm per year.
Researchers created the first self-sustaining meander in a laboratory using alfalfa sprouts to represent vegetated stream banks. They found that vegetation on the outer bank is crucial for slowing down erosion and allowing bars to grow on the inner bank.
A new study by CU-Boulder indicates most world's low-lying river deltas are sinking from human activities. Human-induced factors such as upstream sediment trapping and groundwater extraction exacerbate delta sinking, increasing flood risk and vulnerability to storms and sea level rise.
Typhoon Morakot brought catastrophic rainfall to Taiwan and China, with over 40 inches of rain recorded in central and northern Taiwan. The NASA TRMM satellite provided critical data on the storm's impact, allowing researchers to map areas of potential flooding and track its movement around the globe.
The study documents the extent of flooding and damage in the Ayeyarwady River delta after Cyclone Nargis, with findings including storm surges up to 5 meters high. Researchers recommend implementing a cyclone education program, developing flood maps, and constructing cyclone-safe buildings to reduce future loss of life.
Researchers from Tel Aviv University have developed a novel way to predict the intensity of the next big flood using cell phone signals. By analyzing fluctuations in atmospheric moisture around cell phone towers, they can provide accurate 'critical moisture distribution' levels for fine-tuning model predictions of big floods.
Researchers compared views of outside observers with perspectives of New Orleans residents who rode out the storm. Despite negative stereotypes, survivors saw themselves as connected to their neighbors and community-oriented.
A new software system is being developed to improve flood forecasting and risk analysis, addressing the need for reliable warning systems and uncertainty assessment. The project aims to provide benefits to industries, governments, and citizens in the UK and China, particularly in light of climate change's impact on extreme floods.
In 2008, NASA satellites tracked five tropical cyclones that hit Hispaniola, causing widespread destruction and loss of life. The storms, including Fay, Gustav, Hanna, Ike, and Kyle, brought torrential rainfall and flooding to the island, resulting in over 800 reported deaths or missing persons.
Researchers from the Woods Hole Oceanographic Institution found that the Black Sea level was approximately 30 meters below present levels at the time of the alleged flood, contradicting previous estimates. This suggests a smaller flood event than previously thought, with implications for the settlement and cultural history of the region.
The Supe people's advanced stone pyramid temples and maritime farming community were devastated by a series of earthquakes and flooding caused by El Nino events, rendering their fertile fields and bays uninhabitable. The region's collapse serves as a cautionary tale for modern times, highlighting the risks of environmental vulnerability.
New research by Newcastle University forecasts that UK flooding events will increase in intensity and frequency, with a predicted 30% rise in extreme rainfall by 2080. Northern and western regions are expected to be worst hit, with major implications for flood risk management.
Satellites like TOPEX/Poseidon can supplement USGS ground measurements with little to no cost, offering detailed flood data. The Ohio State software uses an algorithm to differentiate between water and snow cover, enabling precise measurements of flooded regions.
A US death map shows that heat/drought and severe summer weather are leading causes of death, with the South and mountain west particularly vulnerable. The study highlights the importance of emergency management in reducing loss of life from natural hazards.
A study by Peter Leeson and Russell Sobel found that each $100 of FEMA-provided disaster relief increases the average state's corruption by nearly 102 percent. Notably, hurricane-prone states with high FEMA allocations have more corruption convictions per capita.
Several new flood-tolerant rice varieties have passed tests in farmers' fields with flying colors, offering a solution to crop losses due to flooding. The varieties, which can withstand 2 weeks of submergence, are nearly identical to their susceptible counterparts but recover after severe flooding to yield well.
The Three Gorges Dam's reservoir will create a new ecosystem with unprecedented fluctuating water levels. Experts propose using terraced ponds, wetlands, and fish net systems to make the most of this situation.
Experts from 80 nations gather to discuss and define environmental migration, its drivers, and policy recommendations. The conference aims to address the growing issue of climate-driven displacement, with an estimated 200 million people expected to be displaced by 2050.
A comprehensive review of US Gulf Coast bays suggests they will face dramatic and rapid flooding events in the coming century. Sediment flow from dams and sea-level increases pose a significant threat, with some bays potentially expanding by one-third over 100-200 years.
A study found that extreme flood events in 2002 had a significant impact on carabid beetle and mollusc populations, but not on plant species. The vegetation was the least affected by the flood, with some species benefiting from the increased water.
Researchers used computer models to simulate processes forming valley networks, finding evidence for liquid water stability at the Martian surface for tens of thousands of years. The study suggests episodic flooding alternated with long dry periods, contradicting alternative theories.
The Chinese earthquake has triggered a significant risk of flooding and power shortages in the Sichuan Basin, which could last for decades. Dr. Alex Densmore's research found that landslides and sediment buildup pose a major threat to river valleys and reservoirs.
A new storm surge modeling system developed by Stony Brook University researchers will better predict flood levels and timing in NYC, crucial for emergency management. Sea level rise increases NYC's vulnerability to flooding, making it essential to improve forecasting.
Climate change is predicted to increase flooding in the UK, with periods of high rainfall and river flow patterns lasting several decades. The current perception of flood risk has been lower than in previous centuries, making it difficult to prepare for the increased frequency and intensity of floods.
A recent study found that properties located within a floodplain have significantly lower sales prices compared to those outside the flood zone. The estimated price reduction is 7.3% on average, with a total loss of $11,600.
Researchers at Indiana University have designed an organic molecule that can bind negatively charged ions, including fluorine and chlorine. The molecule's unique structure allows it to selectively grab these ions, making it a promising tool for various applications in biology and medicine.
Scientists at UEA found intense rainfall events increasing in UK's winter and spring seasons, reversing summer trend. Heavy summer rainfall returns after 1990s decrease, impacting flood risk and extreme weather events.
Researchers studied a diverted Death Valley stream to understand the effects of climate change on river flooding and erosion. The unique opportunity provided by the 1941 diversion allowed scientists to observe changes in the creek's behavior over time, revealing the impact of altered water flow on geological processes.
The International Rice Research Institute is receiving $19.9 million in funding from the Bill & Melinda Gates Foundation to develop and distribute stress-tolerant rice varieties. The goal is to reach 18 million households and increase yields by 50% within 10 years, benefiting small farmers in South Asia and sub-Saharan Africa.
California's Central Valley faces significant risk of floods with extensive loss of life and billions in damages. The University of Maryland engineers recommend a comprehensive flood-risk abatement strategy focusing on land-use planning and ecosystem restoration.
The Gishwati Forest Reserve in Rwanda will become the country's first national conservation park, focusing on restoration of biodiversity, ecosystem services, and promoting local economic development through ecotourism. The project aims to create a model for Africa's ambitious forest restoration efforts.
Researchers found that stress hormone noradrenaline suppresses pain inputs from the brainstem, reducing neurotransmitter launch and triggering nerve impulses. The study provides important mechanistic clues to understanding stress-induced analgesia.
A 7,000-year-old flood is believed to have triggered the expansion of farming across Europe. The study suggests that rising sea levels led to dramatic social change and displaced millions of people.
American educators have partnered with Bangladeshi experts to develop U.S. geography standards on coping with natural disasters in the country. The project aims to increase cultural awareness and promote disaster resilience among students.
Floods of '93 and '95 devastated 70% of snake populations, with larger snakes and arboreal species faring better. Ecologist Owen Sexton proposes 'islands in the stream' to provide sanctuaries for displaced species during future floods.
A study by Princeton University engineers reveals that cities can increase the intensity of summer thunderstorms, with rainfall up to 30% higher than surrounding areas. The researchers also found that urban environments can alter a storm's life cycle and lead to more flash flooding.
NASA provided critical soil moisture data for affected areas, enabling emergency response teams to track flash flooding and stage rescue efforts. The sensor's detailed maps helped officials predict future flooding risks and avoid casualties.
A pilot forecasting program in Bangladesh is delivering 1- to 10-day forecasts directly to over 100,000 people living on floodplains, alerting them to potential floods. The system uses a combination of weather forecast models, satellite observations, and hydrologic modeling techniques to predict flooding.
A catastrophic megaflood separated Britain from France hundreds of thousands of years ago, carving a massive valley along the English Channel. The flood reorganized river drainages in north-west Europe, affecting early human occupation in Britain and potentially leading to an abrupt halt in migration.
Geologists at PNNL have identified 62 sites with known or suspected mammoth finds, verifying and collecting material from eight locations, including two this spring. Preliminary results suggest most mammoths were buried in the Lake Lewis area at elevations of 600-1,000 feet.
A new study from Penn State shows that eating low-calorie soup before a meal can significantly reduce total calorie intake. The study tested different forms of soup and found that low-calorie, broth-based soups are filling regardless of their form.
A team of researchers has found conclusive evidence of tsunamis in the Bristol Channel, which they attribute to a catastrophic wave erosion event that occurred on January 30, 1607. The study uses established catalogues of geomorphic features to demonstrate the impact of tsunamis on coastal landscapes.