Articles tagged with Rain
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A landmark USGS study documents the process of methylmercury formation in the North Pacific Ocean, which contaminates tuna and other seafood. The study shows that long-range transport of mercury from Asia is a significant pathway, highlighting the need for reduced mercury emissions to protect public health.
A NASA study estimates that climate change fuels Asian wildfires, increasing carbon dioxide emissions by a factor of 10 during dry El Niño years. The research used satellite data and computer models to analyze the impact of drought on fire spread and intensity in regions like Malaysia, Indonesia, and Papua New Guinea.
The NASA TRMM satellite shows Cyclone Bijli's intense rainfall, peaking at 129 millimeters (5.07 inches) in Bangladesh, causing heavy flooding and tropical storm-force winds. The animation tracks the storm's development from birth to landfall on April 17, 2009.
A new study from the University of Washington found that people's understanding of rainy weather forecasts is hindered by misconceptions about probability and uncertainty. Researchers tested over 450 college students and found that many incorrectly assumed deterministic forecasts, leading to unnecessary precautions.
Researchers discovered a five-sided ice chain structure, building from pentagon-shaped rings, which challenges the commonly seen hexagonal structures of ice formations. This finding could lead to new materials for seeding clouds and causing rain, improving weather modification techniques.
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.
A study analyzing 28 soybean experiments found no significant yield advantage for early plantings, regardless of region or variety. However, delaying plantings beyond the critical date in late May or early June led to a substantial loss of yields, suggesting producers should prioritize timely planting.
Researchers found that intermittent rain in days before the tornado moistened some areas enough to create favorable conditions for severe storms. Urban landscape gave storms extra energy needed to spin up a tornado. Heat island effect amplified storm intensity.
A University of Georgia study found Salmonella in 79% of river and stream samples, with highest concentrations in summer months and after rainfall. The bacteria can persist and grow in water under certain conditions, potentially contributing to increased salmonella illnesses as a result of global warming.
Researchers identify aerosols as a crucial factor in shaping Australian rainfall patterns, with potential impacts on future climate change. Aerosol pollution from Asia may be responsible for changes in rainfall patterns in northern Australia.
Researchers predict regional summer monsoon rainfall in China up to 2 seasons ahead by analyzing Pacific SSTA and STA signals. The subtropical summer monsoon has shown a long-term increasing trend, but southern regions have experienced a deducing trend since 1998.
Scientists have discovered 10 new amphibian species in Colombia, shedding light on the country's remarkable biodiversity. The discovery was made during a Rapid Assessment Program expedition in the Tacarcuna area, where approximately 60 species of amphibians were identified, including three glass frogs and three poison dart frogs.
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.
Climate change may lead to a significant impact on water supplies, with changes in groundwater recharge potentially exceeding those in precipitation. The research focused on a semi-arid region near Lubbock, Texas, finding that timing and duration of rainfall events play a crucial role in determining the effects.
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.
The report warns of devastating effects on forests and communities due to climate change; adaptation measures, such as improving forest management and conserving ecosystems, are crucial to mitigate the impacts. Forests provide vital ecosystem services and income for millions of people.
Researchers found that weakening Asian monsoons may have contributed to the fall of three Chinese dynasties, leading to periods of popular unrest. A strong summer monsoon prevailed during a 'golden age' of rice cultivation and rapid population growth in China.
A weakening of the summer Asian Monsoons in ancient China may have contributed to the fall of three dynasties. The researchers found that periods of weak summer monsoons coincided with times of social unrest, but a strong monsoon prevailed during one of China's golden ages.
Research reveals sea snakes dehydrate in saltwater and prefer freshwater or diluted brackish water. The findings may help explain the patchy distribution of sea snakes and their vulnerability to climate change.
A study by the University of Bayreuth and Helmholtz-Centre for Environmental Research found that extreme weather events like droughts and heavy rains can postpone or accelerate plant flowering times in Central Europe. On average, a one-month drought postponed the time of flowering by 4 days, equivalent to a decade of global warming.
A new study suggests that increased climate-related extreme rainfall events in the Great Lakes region will aggravate the risk for outbreaks of waterborne disease. The researchers found a potential 10 to 40% increase in extremely heavy precipitation events, leading to greater potential for flooding and sewage overflow into Lake Michigan.
A new experiment simulates predicted rainfall patterns and assesses the effect of diverse plant species on ecosystem responses. The study focuses on how changes in plant diversity modify key functions such as water processing, nutrient cycling, and carbon storage under changing climate conditions.
A Brown-led research team has discovered that the Lake Tanganyika area's climate is linked to ocean and atmospheric patterns in the Northern Hemisphere. The region's rainfall sensitivity is high, with small changes triggering significant precipitation fluctuations.
Scientists have discovered that aerosols can increase rainfall by providing condensation nuclei for cloud droplets. Moderate quantities of aerosols lead to more rain as they control the distribution of energy in the atmosphere and influence the formation of clouds.
A new study suggests that air pollution can both increase and decrease rainfall, depending on local environmental conditions. The research, led by Prof. Daniel Rosenfeld of the Hebrew University of Jerusalem, found that aerosol particles in the air can affect cloud formation and precipitation patterns.
A recent study by The Lady Bird Johnson Wildflower Center at the University of Texas at Austin found significant variations in green roof performance across six manufacturers. Green roofs were found to cool buildings' interiors by up to 21% and capture rainwater during downpours, but differences varied greatly among products.
New research suggests that climate change may increase Middle East rainfall by up to 50% in the Euphrates-Tigris watershed, contrary to previous projections. This could alleviate agricultural challenges and reduce food shortages.
A new study confirms a link between warmer climates and more powerful rainstorms, increasing the risk of flooding and societal impacts. Researchers found that tropical rainfall extremes increase during warm periods, with heavy downpours boosted by atmospheric moisture.
A new study identifies a link between warming Indian Ocean and declining rainfall in eastern Africa, impacting food security. The team found that human-caused warming of the Indian Ocean leads to increased rainfall over the ocean, reducing onshore moisture flow and resulting in dry air over Africa.
A University of Missouri professor found that men conducting field research on women are limited to specific subjects due to restrictions on access. The Diola people's culture and rituals, such as their fertility shrine Ehugna, were difficult for male researchers to study due to social norms and expectations.
Research highlights importance of distinguishing between tropical cyclones and extra-tropical storms, with a focus on raindrop size distribution. This distinction can help weather forecasters better estimate rainfall intensity and reduce flash flooding.
Researchers found that high-energy electrons are lost by the inner radiation belt during VLF transmitter periods, suggesting human systems can control radiation belt dynamics. Additionally, enhanced mixing within Southern Ocean fronts influences global ocean circulation and climate.
A new study found that dust raised by farmers amplified and spread natural drought, turning an ordinary drying cycle into disaster. The researchers warn that current pressures on farmland could worsen food crises like the Dust Bowl in other regions.
Geologists found that the central Sierra Nevada attained its present elevation 12 million years ago, 8-9 million years earlier than previously thought. This discovery has implications for understanding ancient global climates and modeling past weather patterns.
Researchers found a signature to detect rain-on-snow events in satellite microwave imagery, which can prevent mass starvation of native people's livestock. The method could provide a realistic chance of getting food to herds affected by the devastating weather event.
Research found that airborne bacteria are globally distributed and may cause freezing at warmer temperatures, leading to the formation of rain. The bacteria can multiply and form groups on plants, creating a cycle of precipitation that could help reduce drought.
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.
Scientists found that summer storms in the Southeast drop more rainfall on weekdays than weekends. The study suggests that atmospheric pollution from humans may be driving this trend, as pollution levels peak midweek.
Researchers found that El Nino winters lead to altered jet stream positions, resulting in intensified storm activity in several US regions. The study analyzed daily records of snow and rainfall events over 49 US winters, finding a connection between ENSO events and increased probability of severe winter storms.
A recent study found that soil erosion in northern Mexico is accelerating due to overgrazing, leading to the loss of fertile land and vegetation. The research team used a rainfall index type hydrological model to simulate soil moisture levels and runoff rates, revealing that areas with low rainfall are most prone to sheet erosion.
Researchers found that smaller tropical storms and depressions contribute significantly to cumulative rainfall, with over half of the seasonal rainfall attributed to these weaker systems. In contrast, major hurricanes produce heavy rainfall on any given day but are not the primary storm type relieving drought in the region.
New projections for Australia's changing climate indicate rising temperatures and changes in rainfall patterns. By 2030, temperatures are expected to increase by about 1ºC, with a 10-20% chance of exceeding this threshold in coastal areas.
Despite predictions of collapse, Amazon forests in drought-stricken regions grew more vigorously during the 2005 drought, indicating a positive response to drought conditions. This finding contradicts global climate models and suggests a negative feedback loop that could slow down global warming.
The US Department of Homeland Security is working on a comprehensive project to identify technologies and procedures to rapidly assess and repair levees. The goal is to limit trouble when a levee breaches or prevent such breaks from happening again, using innovative designs, materials, and approaches. The project aims to develop soluti...
Scientists detected a long-term increase in tropical rainfall, with the rainiest years since 2001. The increase is attributed to a warming trend, which enhances evaporation and allows more moisture to form clouds.
Researchers have linked unpredictable rainfall to cooperative breeding in birds, particularly among African starlings living in savannas. This evolutionary adaptation allows more chicks to survive over long periods of uncertain environmental conditions.
Researchers found that over one-third of African starlings engage in cooperative breeding, a behavior typically seen in birds and other animals, due to the unpredictability of their savanna habitats. In contrast, non-cooperative species live in forests with more stable environments.
Researchers found correlations between plentiful sunspots and heavy rain in East Africa, with peak sunspot activity preceding heavy rainfall by about a year. This link could enable public health officials to prepare for insect-borne diseases and 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.
Scientists used satellite images to show a link between rapid city growth and changes in rainfall patterns, including decreased precipitation in winter months. The study found that urbanization can lead to desertification and deforestation, threatening wetland health.
Researchers developed a new way to predict when vegetation dries to its most vulnerable state to large-scale fires in the Santa Monica Mountains near Los Angeles. The study found that global warming has not caused any apparent long-term trend toward early fire seasons in the area.
Engineers at MIT developed a simple system to determine an area's landslide risk using data on history of landslides, bedrock type, slope inclination, and vegetation growth. The tool is especially applicable to developing countries in Southeast Asia where detailed analysis has not been performed.
Researchers can now predict where tropical storms and hurricanes will dump the most rain — even days after — and hundreds of miles away from landfall. The new tools, developed by Corene Matyas, use geographical information systems (GIS) to model rainfall patterns based on storm intensity, distance inland, and landscape topography.
China's Three Gorges Dam, a massive hydroelectric power generator, is being constructed on the Yangtze River. NASA satellites have provided detailed views of the dam's construction and its impact on climate and environment.
Researchers found that tropical plants in Hawaii can acclimate to varying rainfall by switching between different forms of nitrogen. This adaptation may help plants survive in a warming climate with altered precipitation patterns. However, other factors like pollinator distribution and invasive species could still impact plant growth.
Researchers found that drought tolerance predicts plant distributions at local and regional scales in tropical forests. Drought-tolerant plants are more common in dry sites than in wet sites, even in humid forests.
Researchers use a new technique to analyze rainfall trends, finding systematic patterns in heavy and light rain, but no consistent trend in moderate rain. The study resolves the challenge of detecting long-term global rainfall trends, providing insight into climate change's impact on weather events.
A NASA study suggests that a warmer future climate will increase droughts in the southwest United States and other parts of the world. The researchers found that changes in solar output in the past increased surface warming and altered atmospheric moisture and circulations, leading to severe droughts.
Researchers analyzed interaction between individual raindrops and soil particles, dispelling a 50-year-old misconception about how rain-splash transport works. The study provides a theoretical model for the transfer of momentum carried by raindrops to sand grains.