Articles tagged with Floods
Researchers at Indiana University have designed a molecule that binds chloride ions but can be compelled to release them in the presence of ultraviolet light. The 'light switch' properties of this foldamer could be valuable tools for biochemists, allowing them to adjust the availability of chloride in their experiments.
NASA satellites have been tracking Tropical Depression 5's remnants, which are bringing heavy rainfall to southeastern Louisiana and coastal Mississippi. The National Weather Service has issued a Flash Flood Watch and Coastal Flood Advisory due to the expected heavy rainfall and coastal flooding.
NASA's TRMM satellite is monitoring heavy rainfall and potential flooding in southeastern Louisiana and coastal Mississippi due to Tropical Depression Five's remnants. Rainfall amounts of up to five inches are possible, with isolated areas experiencing even more intense downpours.
SRNL is working with universities to develop prevention and cleanup methods for flooded homes, analyzing common mold types and identifying toxic strains. The research aims to determine the best ways to clean structures, prepare materials to prevent mold growth, and assess health risks.
NASA's Aqua and TRMM satellites confirmed strong, high thunderstorms in Tropical Depression 2 after its center made landfall. The storms had cloud tops as cold as -63F, indicating heavy rainfall.
The September-October issue of GSA Bulletin explores various geological topics, including fast erosion during floods and improving the Earth's geological time scale fidelity. A study on the West Mariana Ridge reveals new insights into its geomorphology and processes.
Remnants of Tropical Depression Alex are expected to trigger thunderstorms and heavy rainfall in southern, central, and western Texas, prompting flash flood watches. The National Weather Service notes that additional rainfall will cause flooding and potential flooding through Saturday.
NASA's Tropical Rainfall Measuring Mission Satellite data reveals heavy rainfall in northeastern Mexico, with estimated totals exceeding 10 inches in various locations. The satellite imagery also shows the hurricane's well-defined eye containing powerful thunderstorms that dropped extreme amounts of rain as it made landfall.
A team of researchers used aerial photographs and field measurements to analyze the Canyon Lake flood, which excavated a 2.2-kilometer-long canyon in just three days. The study offers insight into ancient megafloods on both Earth and Mars, with findings that challenge traditional views of river canyon formation.
Research led by the University of Exeter finds that climate change is increasing hazard risks in mountainous regions, including glacier loss and rock-fall activity. The study's findings highlight the need for increased public awareness and preparedness to mitigate the impacts of climate-related hazards.
Tropical Cyclone Phet weakened after making landfall in Oman and is now headed towards a second landfall in Pakistan. The storm's maximum sustained winds decreased to 65 knots (74 mph), down from its previous Category Four strength.
The National Geodetic Survey is modernizing its positioning system to better capture changes in the Earth's surface, including sea level rise and subsidence. This upgrade will improve digital maps and support activities like levee construction, evacuation route design, and floodplain management.
Researchers uncover evidence of closed channel water pressure predating European arrival in Palenque. The Piedras Bolas Aqueduct is a spring-fed conduit with engineered water pressure that controlled flooding and preserved urban space.
Researchers found evidence of four 'megafloods' in Glacial Lake Atna, which breached ice dams and released up to 1,400 cubic kilometers of water. The floods formed massive dunes over 110 feet high, with some still visible on topographical maps.
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 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.
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.
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.
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.
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
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.