Articles tagged with Wind Speed
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Researchers found near-surface wind direction is highly variable over timescales of less than 10 minutes, especially in urban areas. They hypothesize an optimal range of wind speed and environmental surface complexity helps insects locate odor sources.
Scientists have created the first 2D map of wind patterns around a neutron star, revealing clues to galaxy formation. The map shows the wind's vertical structure and velocity, which is about 1 million miles per hour, and offers new insights into the influence of disk winds on galaxy evolution.
Researchers at NIST have developed a new method of digitally simulating hurricanes using AI techniques, accurately representing the trajectory and wind speeds of real storms. The simulations can help develop improved guidelines for building design in hurricane-prone regions.
The study of Doublet Pool reveals that the interval between episodes of thumping reflects the amount of energy heating the pool, while also indicating heat loss through the surface. The researchers found that wind speed over the pools was correlated with silence intervals, suggesting that blowing wind removes heat energy from the water.
Researchers found that seabird species have unique wind tolerance strategies, with some flying fast to counteract wind drift. Albatrosses can fly in most storm conditions, while tropical species use special avoidance tactics.
Researchers investigated how seabird flight characteristics vary among different species in response to cyclone-strength winds. Birds living in windier environments are faster fliers, while tropical species use strategies to cope with extreme events. Some albatrosses even avoid strong winds by flying into the eye of the storm.
Researchers develop site-specific mitigation strategy for wind turbines, significantly reducing bat fatalities. The approach uses wind speed, temperature, and rainfall data to adapt curtailment strategies, resulting in a 86% reduction in bat deaths.
Large gamma-ray emitting bubbles are produced by fast blowing outward winds and the associated reverse shock. Numerical simulations successfully reproduced the temperature profile observed by an X-ray telescope, supporting this scenario.
Researchers at the University of Oldenburg have developed a new statistical model that accurately describes wind turbulence and generates fully three-dimensional wind fields using limited measurement points. This breakthrough enables precise wind turbine load estimation and improves wind farm planning, with applications in various fiel...
The NTU-developed wind harvester generates a voltage of three volts at wind speeds as low as two meters per second, powering commercial sensor devices. The device can also store excess charge for extended periods in the absence of wind, serving as an alternative to smaller lithium-ion batteries.
Stronger hurricanes are more likely to reach Europe, with those encountering strong jet stream winds often reintensifying and moving further east. This study investigates the link between hurricane strength and European impact.
Researchers at King Abdullah University of Science & Technology (KAUST) have developed a more robust and realistic general method for dealing with wind-driven phenomena in geostatistical modeling, which promises to greatly improve the accuracy of pollutant dispersion prediction.
Researchers radio-tracked migrating hawkmoths for up to 80 kilometers, employing sophisticated flight strategies to counter unfavorable wind conditions. The study confirms that insects can accurately maintain straight trajectories over long distances using internal compasses.
New research from the University of Georgia found at least 479 people were injured and 28 died worldwide in more than 130 bounce house accidents due to weather events. Basic precautions such as securing bounce houses could have prevented many accidents.
Researchers at Ohio State University have developed a more efficient wind sensor for drones, balloons, and autonomous aircraft. The sensor uses smart materials to measure wind speed and direction, improving safety and efficiency in autonomous flight.
Researchers discovered a new perspective on the tropical cyclone size-intensity relationship, finding that latitude and environmental vertical wind shear are primary influences. This reexamination sheds light on the physical mechanisms underlying coordinated changes within TCs, enabling better warning systems.
Researchers examine historical data and weather patterns to understand west-side wildfires' timing, size, and causes. They find that severe fires are normal for the region when looking at longer time scales, and conventional fire management tools may be less effective due to extreme winds.
A new study reveals that Manx shearwaters use dynamic soaring to harvest wind energy and travel efficiently across the ocean. The birds' ability to adapt their flight patterns to optimize energy gain suggests a potentially game-changing strategy for drones and other aerial vehicles.
A recent study by Colorado State University economists and NOAA found that improved wind forecasts result in significant energy savings for consumers. The research shows a net gain of over $150 million in annual savings through better predictions of wind patterns.
Researchers found that improved wind forecasts resulted in at least $384 million in energy savings for US consumers over the last decade. The study used NOAA's HRRR model to compare forecast accuracy and quantify cost savings.
A new study projects that climate change will more than double the frequency of intense tropical cyclones globally by 2050, increasing maximum wind speeds by up to 20%. This will disproportionately affect low-income countries and regions that are not currently prone to these events.
A severe rainstorm over Kauai in April 2018 resulted in $180 million in damage and 532 homes destroyed. The study found that supercell thunderstorms triggered the deluge, which set a new US 24-hour rainfall record of nearly 50 inches.
A new analysis found that offshore wind power in New England could reduce wholesale electricity prices by $28.81 megawatts per hour, while lowering emissions consistently. However, extreme winter storms may cause temporary losses of power due to high wind speeds, but these events are rare and do not break the system.
A study led by Pedro Machado reveals a significant difference in wind speed at two altitudes, suggesting energy transfer from the lower layers to the atmosphere. The team collected measurements of wind speed parallel to the equator and at the altitude of the bottom of the cloud deck, providing new insights into Venus' climate.
A new study reveals a significant shift in the Northern Hemisphere jet stream position, increasing by up to 330 km and speed by 8% during 1871-2011. This shift is linked to warming Arctic winters and decreased temperature gradients, with implications for climate predictions and storm activity.
A new study from Cornell University provides detailed models characterizing the frequency, intensity, and height of low-level jet streams over the U.S. Atlantic coastal zone. The research finds that low-level jets can occur up to 12% of the time in the late spring and early summer, potentially impacting wind turbine performance.
Researchers from West Virginia University are developing a new composite transition joint using 3D printing to reduce stress on power plant systems. The goal is to increase the flexibility and reliability of thermal power plants.
Airborne pollen concentrations in Betula microphylla-dominated wetland of Ebinur Lake, Xinjiang, are influenced by meteorological factors such as temperature, precipitation, wind speed, and direction. The study found that airborne pollen composition corresponds to local vegetation and reflects long-distance transported pollen taxa.
Researchers from the University of Rhode Island studied the interaction between tornado-strength winds and highway overpasses, finding no evidence of wind acceleration under an overpass. The study, published in Physics of Fluids, suggests that using an overpass as a shelter during a tornado may not be safer than other options.
A new study has shown how climate change impacts the ecosystems of large lakes by varying their water layers' mixing through seasons. Mixing controls heat, oxygen, nutrients, and pollutants between layers, shaping ecosystems' adaptations.
Researchers found that stronger hurricanes trap and transport more birds due to their intense winds and thunderstorms. The study used radar data from 33 Atlantic hurricanes between 2011 and 2020, revealing a correlation between hurricane intensity and the presence of birds within the eye.
A Brazilian study examines the causal relationship between outdoor air pollution and students' cognitive performance in Brazil. The findings suggest that an increase of 10 micrograms per cubic meter of PM10 decreases students' scores by 6.1 points, with poorer students more susceptible to air pollution's effects.
Researchers at Stanford University have discovered the physical mechanism behind icy plumes that precede severe thunderstorms and potentially deadly tornadoes. The study reveals a hydraulic jump phenomenon triggered by fluid obstacles in the atmosphere, leading to rapid water vapor injection into the stratosphere.
New analysis of 71 years of data reveals that Santa Ana wind fires are largely driven by powerline ignitions and wind speeds. Ignitions account for all fires during these events, with powerline failures being a major contributor to land area burned.
Researchers from the University of Washington and NOAA's Pacific Marine Environmental Laboratory gather data on cold air pools using Saildrones, which alter surface temperature, wind, and moisture over the ocean. The study provides detailed measurements of these events, shedding light on their role in tropical climate cycles.
Research reveals that Asian houbara birds use internal temperature cues to fine-tune their migration departure times, adapting to annual temperature variability without genetic changes. Temperature cues are more consistently used than other environmental factors like daylight length or wind velocity.
Researchers developed a new model to predict how plants and animals will weather climate extremes by considering biomechanics and environmental factors. The 'ecomechanical models' can help understand evolutionary patterns and animal interactions with their environment.
Researchers from the University of Illinois at Urbana-Champaign designed controllers to optimize wind turbine performance by considering downstream effects, resulting in noticeable gains. The study demonstrates that incorporating networked wind farms and time-dependent wind estimation models can improve power extraction.
Researchers discovered that wind turbines in close proximity to each other reduce overall energy output. They suggest smaller, spaced-out farms may be more efficient, but further research is needed. The study's findings have implications for global energy supply and the transition away from fossil fuels.
A simulation study found that wind farms generate little power beyond a certain size, causing interference with neighboring installations. Optimizing arrangement and placement of turbines can increase power density up to a site-specific point.
A recent study found that China's annual mean surface wind speed stopped weakening around 2014 and started strengthening, but stilling persists in certain regions. The reversal was driven by regional and seasonal variations.
A Cornell University-led study reveals that birds can use turbulence to their advantage, offering a potential boost to the aerospace industry. The research found that birds' accelerations are highly irregular and fluctuating, similar to particles in turbulent airflows, allowing them to harness energy from wind speed.
A recent study by Helmholtz-Zentrum Hereon found that wind farms in the North Sea experience a significant slowing down of wind speeds when built close together, leading to reduced power output and economic consequences.
Recent warming leads to a weakening of global dust storm activity, according to researchers from Tianjin University. The study found that changes in wind patterns and atmospheric stability are responsible for the decrease in dust storm frequency and intensity.
Researchers discovered that fruit flies can fly up to 15 kilometers in a single journey, outpacing many migratory bird species. The study, led by Kate Leitch, used 'release and recapture' experiments with hundreds of thousands of common lab fruit flies.
A 34-year climate study reveals that decreased wind speed is associated with delayed onset of annual leaf drop, extending favorable growth conditions later into autumn. The authors suggest that reduced soil drying due to decreased winds may be a key factor in this phenomenon.
A study analyzing tornado wind speed and size data from 120 events found that stronger and wider tornadoes exist than damage-based estimates indicated. The median peak wind speeds were around 60 m/s, sufficient for Enhanced Fujita scale ratings of 2-3.
Researchers found that sea spray aerosol (SSA) concentrations tend to rise with increasing sea surface temperature (SST), offering a more accurate prediction method. This discovery could lead to improved climate modeling by incorporating SSA's dependence on SST.
A new global wind atlas provides documented extreme wind speeds for all parts of the world, enabling engineers to select turbines and accelerate sustainable energy development. The atlas is a digital compendium that helps ensure cost-efficient and dependable electricity generation.
Research on the Loess Plateau's complex terrain explores how atmospheric stability influences turbulence measurement ergodicity. Steadiness of various-scale turbulence distribution is key to satisfying ergodicity, with relatively easy satisfaction at weakly stable stratifications.
Researchers tracked the dispersion of large, medium, and small airborne cough droplets under different wind speeds and environmental conditions. They found that evaporated droplets can travel further due to increased viral loading, posing a higher risk of infection when inhaled deep into the lung.
NASA's Aqua satellite revealed strong winds and wind shear affecting Tropical Storm Nangka as it pushed inland, leading to weakening of the storm's circulation. The storm was forecast to move further inland and dissipate over mountainous terrain in northwest Vietnam and northern Laos.
Apep, the newest star to join an elite club of elegant binary pairs, has been found to break all rules. Its dust spiral is expanding four times slower than the measured stellar winds, a phenomenon unheard of in other systems. This discovery makes Apep a strong contender for producing a gamma-ray burst when it does finally explode.
Typhoon Chan-hom's heaviest rainfall was pushed northeast of its center due to wind shear. Rainfall rates reached 30 mm/hour just north of the center.
KAUST researchers developed a statistical model providing the best wind forecast yet for Saudi Arabia, aiming to increase renewable energy in the grid and reach 9 gigawatts of installed wind energy by 2030. The model uses advanced statistical approaches to jointly model wind speed and direction, showing improved prediction performance.
Tropical Storm Dolphin battled intense wind shear as it approached east central Japan. Despite strong vertical wind shear, the storm remained consolidated with strong thunderstorms and a low-level circulation center. NASA's Terra satellite captured visible images of the storm, providing valuable data for hurricane research.
Tropical Storm Vicky is weakening due to strong southwesterly wind shear pushing its clouds to the northeastern quadrant. The storm's shape and organization are being distorted, and it is forecast to degenerate into a remnant low by Wednesday.
Tropical Depression 20 strengthened into Tropical Storm Teddy, breaking a hurricane season record. The storm is expected to become a major hurricane later in the week, with life-threatening surf and rip current conditions forecasted for the Lesser Antilles.
Tropical Storm Paulette's unique shape is attributed to the strong southwesterly wind shear affecting it and its companion storm, Rene. Infrared imagery reveals powerful thunderstorms with cloud top temperatures as cold as minus 80 degrees Fahrenheit.
Tropical cyclones affected by wind shear can appear less than round, with outside winds pushing clouds and rain to one side. Infrared data reveals cold cloud top temperatures indicating heavy rain potential