Articles tagged with Storms
Researchers at CU-Boulder predict wetter storms in the Arctic and mid-latitudes due to global warming, with increased precipitation over individual storms but no clear trend in net precipitation. Higher CO2 levels warm the atmosphere, leading to more water-holding capacity and increased storm moisture content.
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.
A Dartmouth economist projects steady growth in 401(k) retirement savings, citing the growing importance of personal savings plans. Most concerns about a pension crisis are overstated, with future retirees expected to have substantial wealth, five times that of current retirees.
Researchers found that specialized diets of bat species may contribute to their extinction risk. Contrary to previous studies, dietary breadth was not related to geographic range size or wing structure.
A NASA airborne expedition will investigate how chemical compounds are transported into the stratosphere, affecting cloud formation and climate. The mission aims to document the life cycle of widespread clouds and understand their impact on a warming climate.
A CU-Boulder team is part of a massive field campaign studying tropical storms' impact on global warming and stratospheric ozone depletion. The team will use three NASA aircraft, seven satellites, and other instruments to collect data on chemical compounds, high-altitude clouds, and their influence on the Earth's radiation budget.
CMEs can produce radiation storms, but detecting them through radio signals may provide warning to astronauts and satellite operators. Strong CME shocks accelerate particles in the solar wind, producing both radio signals and radiation storms.
A 10% increase in urban green space could reduce surface temperatures by as much as 4°C, effectively 'climate proofing' cities. However, this may not significantly impact the amount of rainwater captured and retained by urban areas.
Speaker Pelosi and Senator Alexander receive the George E. Brown Jr. Science, Engineering and Technology Leadership Award for their roles in promoting US innovation and competitiveness. They were chosen for leading the House Democrats' Innovation Agenda and championing science research.
Scientists forecast a moderately strong or weak solar storm cycle starting in March 2008 and peaking in October 2011 or August 2012. The panel's predictions are evenly split on the intensity of the cycle, with some expecting a record-breaker.
A Texas A&M University researcher has found that severe pollution from China and India is intensifying storm tracks over the Pacific Ocean, leading to more frequent and severe weather events worldwide. The study suggests a direct link between human-made pollution and climate change.
A scientific team has developed the world's first engineering model to predict how coral reefs will be affected by intense storms. The model takes into account factors such as colony shape, sea-bed strength, and wave force to estimate the likelihood of coral damage.
A new National Research Council report emphasizes the physical risks of extended space journeys due to space radiation. The report recommends developing storm shelters to protect astronauts from harmful radiation, as well as improving space engineering techniques and enhancing solar forecasting.
Researchers found that loblolly pines growing under elevated carbon-dioxide concentrations fared better during and after a major ice storm than those with current levels. The study suggests that forests may suffer less damage during each ice storm event in a future with higher atmospheric CO2.
A new type of microscopy developed by Xiaowei Zhuang at Harvard University resolves objects as small as 20 nanometers, enabling the first ultra-resolution imaging of living biomolecules and cells. The technique, called stochastic optical reconstruction microscopy, uses glowing molecules to create high-resolution images in real-time.
Recent observations from the Cassini spacecraft and Huygens probe suggest massive methane storms on Titan, creating a 'methane cycle' similar to Earth's water cycle. These storms produce dense clouds of methane and copious precipitation of liquid drops, generating rivers and canals on Titan's surface.
Red Storm excelled in the High Performance Computing Challenge test suite, demonstrating exceptional communication bandwidth and floating-point computation capabilities. The supercomputer achieved 40 times more communications power per teraflop than IBM's Blue Gene system, marking a significant milestone in its architecture.
Researchers at Stanford University have developed a new technique that allows anyone with a computer to download images of the entire solar surface. This technology enables the early detection of solar storms on the far side of the sun, which can be detected days or weeks in advance and affect Earth's orbiting satellites, telecommunica...
A new analysis of global satellite data reveals that a warming climate has led to fewer but stronger storms in mid-latitudes, resulting in contrasting cooling and warming effects on the atmosphere. These storm changes affect the Earth's radiation and precipitation fields, leading to increased precipitation in the northern mid-latitudes.
Researchers predict Cycle 24 sunspots will span 2.5% of Sun's surface, peaking in 2012, with improved forecasting tool helioseismology used to analyze recent solar cycles and forecast future activity.
The NCAR team predicts that Cycle 24 will produce larger-than-usual sunspots, affecting satellite orbits and power systems. Scientists developed a model tracking subsurface movements of sunspot remnants for more than 98% accurate forecasts.
Researchers at Duke University captured the clearest video yet of lightning-generated sprites, revealing new details about their development and structure. The team's findings, published in Geophysical Research Letters, provide a better understanding of sprite dynamics and their possible effects on the upper atmosphere.
Researchers have detected a massive lightning storm on Saturn, with flash rates exceeding those of Voyager 1 and intensities comparable to Earth's thunderstorms. The storm has been observed since January 23 and has varied in intensity, with some 25 episodes occurring since its initial detection.
A new study finds that the quality of a dog-owner relationship has no impact on thunderstorm-phobic dogs' stress responses. However, dogs living with other dogs in the household exhibited less pronounced stress reactivity and faster recovery times.
Researchers discovered a link between GPS data and satellite images of the plasmasphere, allowing them to understand the ionosphere-thermosphere-magnetosphere as a coupled system. The study provides a new understanding of space storms and their impact on Earth's upper atmosphere.
Researchers found halophilic bacteria in non-saline Japanese soil, suggesting they originated from salt lakes in Inner Mongolia, China. The study suggests dust storms can transport bacteria across geographical boundaries, posing health risks.
A team of British, US, and French scientists have made a breakthrough in understanding the behavior of high-energy particles in the Van Allen radiation belts. They found that low-frequency radio waves cause particle acceleration and intensify the belts, contradicting long-held theory.
NASA's National Lightning Safety Awareness Week aims to educate summer swimmers, picnickers, and others on the dangers of thunderstorms. The agency's research has created lightning maps that reveal uneven global distribution of lightning strikes, indicating areas prone to storms.
A NCAR researcher used white-light images of the Sun's corona to study magnetic flux ropes, which store massive amounts of energy. The study found that these structures can form prior to a coronal mass ejection (CME), suggesting a new approach for understanding and forecasting CMEs.
A massive Christmas week snowstorm broke records for snow intensity, size, and damages across the Ohio River valley. The storm dumped record snowfall, causing over $900 million in losses, including thousands of injuries and 17 deaths.
Researchers discovered that 11 of 17 measurable chemicals in surface water were reduced after passing through the system, according to Ron Turco, soil microbiologist. The study showed that constructed wetlands can act as a holding area for recycled water, providing a sustainable solution for irrigation and flood prevention.
Researchers found that air pollution can convert insoluble iron into a soluble form, making it available to phytoplankton. This process is important for ocean fertility and carbon dioxide absorption, with small dust storms producing enough soluble iron to fertilize the ocean.
States are finding alternative routes to expand health insurance coverage, including new revenue sources and private-sector partnerships. Medicaid's role is being reevaluated to make programs more affordable and sustainable, with a focus on addressing underlying cost increases and increasing access for vulnerable populations.
Scientists at UCSB study the relationship between recent severe storms and increased oil emissions from the Coal Oil Point seep field. Researchers estimate current oil emissions are many times pre-storm levels, with new areas of seepage appearing and gas driving the flow.
Researchers at New Jersey Institute of Technology (NJIT) have successfully tested a smart gun that can distinguish between authorized and unauthorized users. The technology uses dynamic grip recognition, which measures the size, strength, and reflexive way a person acts when squeezing the trigger.
The Van Allen Radiation Belt Slot, considered a safe zone, filled with concentrated radiation during the October and November 2003 solar storms. The radiation surge was the most intense ever observed in this region, posing significant risks to spacecraft.
The National Science Foundation has awarded $9.7 million to the Pittsburgh Supercomputing Center to install a Red Storm system from Cray, Inc., capable of approximately 10 teraflops. The system will enable researchers to explore high-performance computing capabilities and demonstrate its potential for various scientific applications.
Two studies reveal new insights into climate change: a microplate in the Mediterranean Sea is found to be independent of larger tectonic plates, while seasonal changes in photosynthesis can affect global atmospheric simulations. Another study warns that oxygen isotope analyses may not accurately portray ancient climates due to changing...
A massive solar flare of X45 was detected on November 4, 2003, exceeding previous largest flares by a factor of two. The team used radio wave-based measurements to revise the flare's size, finding it equivalent to 5,000 Suns in x-ray radiation.
A team of international researchers, including University of Colorado at Boulder professor Robert Hohlfelder, are searching for the lost fleet of Persian warships in the seas off Greece's northern coast. The team used sonar, a manned submersible submarine and a remotely operated vehicle to locate the site, which was chosen after local ...
Scientists observed the Van Allen Belts being pushed and prodded to a nearly unprecedented degree during the 'Halloween storm' of 2003. The outer belt's center moved just 6,000 miles from Earth's equatorial surface, causing a significant increase in radiation.
Researchers from NCAR's Research Applications Program developed the NCAR Efficient Spectral Processing Algorithm (NESPA) to aid pilots in navigating turbulent storms. The algorithm achieved an impressive accuracy rate of over 80%, detecting turbulence encounters with very few false positives.
A study predicts that monarch butterfly winter refuges in central Mexico will continue to decline due to increased storms and wet conditions. Human activities such as deforestation and logging further exacerbate the problem, threatening the survival of these iconic butterflies.
Scientists have searched for large electric fields in thunderstorms without success. Dwyer's new theory shows that the atmosphere can only hold a certain sized electric field, stunted by gamma-rays and positrons. The triggering mechanism of lightning remains a mystery.
The study improved forecast accuracy for a major winter snowstorm in Washington, D.C. and demonstrated the potential to enhance storm tracking and predict snowfall amounts.
NCAR scientists have developed a new algorithm to predict turbulence using airborne radars, enabling pilots to receive warnings up to 30 seconds in advance. The NCAR Efficient Spectral Processing Algorithm (NESPA) demonstrates an 80% detection rate and low false predictions, showing its feasibility for improving aviation safety.
Researchers at Penn State have developed an early flash flood warning system that can potentially save lives and property by forecasting extreme weather events. The system uses a combination of dynamical and statistical models to identify patterns and anomalies in atmospheric conditions, allowing for three-day advance warnings.
A study by Tufts University civil engineering professor Paul Kirshen predicts that Boston's rising sea levels could cause over $20 billion in damages over the next century, with costs reaching up to $94 billion if severe weather conditions are exceeded. The research highlights three scenarios for government response, including 'Ride-It...
Researchers gather data from an unusual storm over the Amazon rainforest to analyze the storm's inner workings, revealing a two-phase process where both precipitation forms at lower altitudes and higher in the atmosphere. The study provides new insight into storm intensity and hazards, which should be avoided by aircraft.
A NASA study found that lightning strikes in multiple locations, with 35% of recorded flashes striking the ground in two or more places. On average, each cloud-to-ground flash struck the ground in 1.45 separate places, increasing the risk of being struck by 45%.
New research reveals that red giants still exhibit coronal activity, but it is submerged in the chromosphere, a region around 10,000 F. The team used NASA's Chandra X-Ray Observatory and ultraviolet instruments to detect hot coronal gas through UV emissions.
A new study reveals that mercury in California rainwater originates from industrial emissions in Asia, particularly coal combustion and ozone production. High concentrations of mercury were found in coastal and inland sites, with urban smog influencing the oxidation rate.
Scientists analyzed 40 years of daily weather data to understand the NAO's two-week cycle and its effects on European winters. They found that positive NAO events lead to milder winters, while negative events bring colder temperatures and more precipitation.
A recent Asian dust storm triggered a massive bloom of phytoplankton in the North Pacific, suggesting that wind-blown iron from terrestrial dust can stimulate plankton growth. This observation challenges the long-held 'iron hypothesis,' which proposed that adding iron to ocean waters could offset global warming.
A new theory suggests that the Earth's surface features can be explained by rapid changes in crustal plate direction due to convection in the mantle. The research uses powerful computer systems to model the Earth's interior in three dimensions, revealing dynamic processes that shape our planet.
Researchers found thicker, denser storm clouds over warmer waters, covering wider areas of the tropics and releasing more moisture as rain. This contradicts the 'Adaptive Iris' theory, which suggests cloud cover decreases with rising ocean temperatures.
Researchers have developed a new technique that predicts Madden-Julian Oscillations (MJOs), which can provide two-weeks notice for storms. This allows scientists to issue storm warnings weeks earlier than current conventional weather forecasting, supporting sustainable development efforts.
The American College of Emergency Physicians has issued first consensus guidelines on lightning safety before summer storms. These guidelines emphasize the importance of individual responsibility in avoiding lightning injury and provide tips on safer practices, including knowing safe locations and following weather updates.
A U. of Colorado-led science team is studying environmental problems on Alaska's North Slope to better understand and mitigate the effects of climate variability and potential environmental disasters. The researchers are creating a storm damage handbook using computer modeling to help local communities prepare for extreme storms.
Research suggests that seawalls may have no significant long-term effect on beach behavior, despite causing active erosion during storms. Geologists consider factors such as sediment transport rates and beach erosion to determine net long-term erosion.