Articles tagged with Wind Speed
A study published in BMC Public Health found that high temperatures, humidity, and low wind speed are linked to increased dengue fever cases. The authors suggest that weather conditions affect mosquito survival and flying patterns, which contribute to disease transmission.
Typhoon Lupit is forecast to move northeast, weakening due to cooler waters and wind shear. The storm will continue crawling at a slow pace, causing prolonged rain over northern Luzon this weekend.
Tropical Storm Nepartak is transitioning into an extra-tropical storm, developing frontal qualities in the northwestern Pacific Ocean. The storm's circulation will soon fade as it continues to speed northeast, with dry air in the mid-levels of the atmosphere contributing to its transformation.
Tropical Storm Henri has weakened to a depression due to battering winds and strong southwesterly shear. The National Hurricane Center confirmed the wind speed using NASA's QuikScat satellite imagery, with minimum central pressure near 1010 millibars.
Melor is now a typhoon with sustained winds near 115 knots, tracking northwestward towards Saipan and Rota. The National Weather Service warns of high surf and potential damaging winds for the Northern Marianas Islands.
Hilda's winds have slowed from tropical storm to tropical depression-force, with sustained winds near 34 mph, according to NASA satellite data. The storm is expected to continue tracking south of the Hawaiian Islands before dissipating on August 31.
A new study by LSU professor Patrick Hesp and USGS scientist David Rubin suggests that Titan's linear dunes could be formed by single-direction winds due to cohesive sediment. This alternative hypothesis has significant implications for studying Titan's composition, origin, evolution, and surface features.
Hurricane Bill's category 3 hurricane force winds extend up to 85 miles from the storm center, with tropical storm-force winds reaching as far as 230 miles.
Two NASA satellites captured images of the weakening tropical storm Dolores, which has faded into a remnant low pressure area. The storms' winds and clouds were tracked using QuikScat and CloudSat, revealing intense rainfall and towering cloud formations.
A new study in the International Journal of Exergy provides a formula to calculate wind turbine performance and optimize energy production. The formula offers a theoretical boost of 20% efficiency at varying wind speeds, reducing wasted energy by 80%.
The NCAR forecast system will provide highly detailed, localized weather forecasts to enable utilities to make critical decisions about powering down traditional plants when sufficient winds are predicted. The system will help increase reliance on wind energy while meeting customer needs.
Researchers develop a novel control method to mitigate wind speed variations by leveraging rotor inertia as energy storage. This approach reduces the need for external energy storage facilities, improving overall wind farm efficiency.
Researchers propose that Eta Carinae's historic 1843 outburst was a fast blast wave similar to a supernova, but less energetic. This discovery challenges current theories and may indicate supermassive stars undergo periodic explosions before their final supernova.
A new study led by FSU researcher James B. Elsner found that the strongest tropical cyclones are getting stronger, particularly over the North Atlantic and Indian oceans. Ocean temperatures play a role in driving this trend, consistent with the 'heat-engine' theory of cyclone intensity.
Researchers have developed a mobile lidar station that can measure wind fields more accurately, which could help world-class athletes compete in international competitions. The technology is being tested in conjunction with the XXIX Olympic Games and Paralympic Games in Qingdao.
A team of scientists from Johns Hopkins University used data from NASA's New Horizons spacecraft and multiple telescopes to observe the high winds in Jupiter's Little Red Spot. The winds have increased substantially over previous storms, with maximum speeds reaching 384 miles per hour, surpassing Category 5 storm thresholds.
Scientists have found that migratory moths use various strategies to control their flight direction and speed, including selecting favorable wind directions and compensating for wind drift. These findings provide the first conclusive evidence for a compass mechanism in nocturnal insect migration.
A Stanford University study examines California's coast for offshore wind energy potential, estimating that a Northern California site could supply 5% of the state's electricity. However, high water depths and varying wind speeds make it challenging to harness wind power off the coast.
Scientists at Stanford University found that connecting wind farms can reduce the variability of wind energy, making it suitable for baseload power. On average, 33% of yearly-averaged wind power from interconnected farms can be used as reliable, baseload electric power.
The Kansas Wind for Schools program has selected several rural schools to receive Skystream 3.7 wind turbines as part of the National Renewable Energy Laboratory's initiative. The small turbines will become part of the curriculum at these schools, teaching students about wind energy and its applications.
Kent State University meteorologist Dr. Thomas Schmidlin studied parking garage safety as a 'refuge of last resort' during hurricanes. At what wind speeds are emergency vehicles safe to respond to emergencies?
A new method for predicting cross-pollination between GM and conventional crops has been developed by the University of Exeter. The study reveals huge variation in cross-pollination levels depending on wind direction and speed, highlighting the need to increase minimum field-to-field distances.
Researchers have discovered a reflex mechanism in insects that allows them to maintain constant speed and altitude, even in strong headwinds. By controlling lift force using the optic flow regulator, insects can fly safely without measuring their speed or altitude.
A study by Stanford University researchers found that aerosol particles slow down winds, reducing the availability of clean energy from wind power and leading to decreased precipitation. This can result in droughts and reduced water supplies, with potential impacts on global food security and energy systems.
A new study by Georgia Tech researchers confirms the link between rising sea surface temperatures and increasing hurricane strength. Sea surface temperatures are found to be the dominant influence on global and North Atlantic hurricanes, with no significant trend in wind shear or other factors over the past 35 years.
A new study reveals that ocean spray plays a crucial role in lubricating the swirling winds of hurricanes and cyclones. The researchers found that large water droplets kicked up by rough seas can inhibit turbulence, allowing winds to build to speeds approaching 200 miles per hour.
A new open loop control system enables efficient energy conversion in low wind speeds, providing a viable alternative for remote locations. The device, designed by Dr. Andy Knight, is built with cheap and easy-to-find components and can produce electric energy from winds as low as 10 km/h.
A new study maps global wind speeds to identify regions suitable for wind farms, finding consistent winds in the Great Lakes region and along coastal areas. The research suggests that harnessing a fraction of this energy could meet the world's electricity demands, but practical barriers remain.
A new study refines hurricane intensity prediction models by incorporating the impact of large eddies on wind speed and air humidity. The research suggests that large eddies contribute significantly to energy, heat, and moisture transfer between the ocean and atmosphere.
Researchers analyzed 324 combinations of public and private wind speed and damage models, finding vastly different results due to varying inputs. Creating a centralized database of wind speeds and requiring insurance companies to divulge more information about damage claims could help improve the accuracy of these models.
A team led by Tohru Saito will install an upgraded weather station on Mt. McKinley, measuring relative humidity, barometric pressure, and wind speed from an outcrop at 19,000 feet elevation. The station will transmit data every 30 minutes to IARC and be available worldwide.
A team of researchers has received a $2 million NSF grant to create an advanced system that predicts wildfire behavior and progression. The system will use data from sensors, satellite monitoring, and mathematical theory to provide minute-by-minute predictions for firefighters.
Clemson researchers are using innovative 'wind towers' to gather high-resolution wind speed data near the ground, crucial for developing hurricane-resistant homes. The device's output will be used to refine building codes and potentially reduce construction costs.
The StratoSail system uses a wing suspended below the balloon to steer it through wind, enabling maneuvering towards desired regions or away from unfavorable conditions. With NASA funding, this technology aims to increase science observation strategies, safety, and payload recovery for stratospheric balloons.
Researchers are developing a new mobile radar system called SMART-R to track tornadoes and hurricanes. The system will enable more accurate predictions of storm movements and intensities, helping to save lives by issuing warnings earlier.
The discovery of a 170-million-year-old dinosaur tracksite in the Gypsum Spring Formation sheds light on the geographic distribution of dinosaurs during the Middle Jurassic period. The site preserves evidence that some dinosaurs may have been swimmers, with estimated speeds of up to 9.2 kilometers per hour.
Researchers detect first P Cygni profile in X-rays, revealing a 4.5-million-mile-per-hour wind from a compact pair of stars. The discovery provides new insights into stellar winds and their role in astrophysics.
A team of researchers used the High Energy Transmission Grating to study a powerful gas flow surrounding a giant black hole. The wind is driven by intense radiation and contains elements such as oxygen, neon, magnesium, silicon, sulfur, argon, and iron.
Researchers found a strong link between westerly winds in the Pacific and hurricane formation in the Gulf of Mexico. The Madden-Julian Oscillation repeats every 30 to 60 days and correlates with increased hurricane activity four times more likely, giving officials advance warning.
Clemson University engineers are deploying mobile data-acquisition platforms, called 'wind towers,' to measure wind speed and direction in the path of Hurricane Floyd. The goal is to provide accurate ground-level data to help develop design bases for hurricane-resistant homes.
The Johns Hopkins University hurricane test house, built in 1997, has collected over 2,000 data sets on wind pressure and movement, shedding light on the impact of powerful winds on coastal homes. The research aims to inform building codes and reduce property damage caused by hurricanes.
The Florida Coastal Monitoring Project installs 28 sensors on 10 South Florida homes to gather data on wind speed and pressure. The project aims to improve the design and construction of houses that can withstand high winds.
Researchers at Columbia University have found a link between the greenhouse effect and warmer winters in the northern hemisphere. They used a NASA model to suggest that increased greenhouse gases are causing stronger winds to carry warmer air from oceans to continents, leading to colder continental air near the oceans.
Researchers identify smaller, bright sand dunes formed of sulfates possibly gypsum, while larger dark dune fields are made of grains eroded from lava flows. The winds on Mars create landforms remarkably similar to those in some deserts on Earth.
A group of engineers and scientists reconstruct hurricanes using a custom-built tower with data-gathering equipment. The goal is to fabricate house-sized hurricane-force winds at the HomeSaver national test facility.
A scale model wind machine is being tested at the Idaho National Engineering and Environmental Laboratory to simulate natural storms. The experimental data collected will aid in designing hurricane-resistant homes, with a focus on affordable solutions for shelter protection.
Researchers found that El Niño years averaged only 49.3% of maximum intensity compared to 48.6% in non-El Niño years. However, this current El Niño may be different and could help solve the mystery behind increasing North Pacific hurricane intensities.
The FAA and NCAR are working together to develop a new turbulence detection and warning system for the Juneau Airport, which could potentially prevent crashes and injuries. The system uses real-time data from sensors and computer monitors in the control tower to display information on choppy winds and turbulence.
Researchers from NCAR and NOAA are studying terrain-induced turbulence at Colorado Springs airport to reduce mountain flying risks. The goal is to develop a real-time turbulence detection and warning system, similar to one recently developed for Hong Kong's Chek Lap Kok Airport.
The prototype non-Doppler optical sensor registers faint wind movements that anemometers cannot measure, correlating with those of anemometers in test results. It offers a low-cost alternative to complex arrays of traditional sensors and can measure both horizontal and vertical wind speeds.
Researchers at Johns Hopkins University created a scale model of Jupiter that simulates the banding pattern, lending support to the idea that the atmospheric bands have deep roots. The model's findings are backed by data from the Galileo spacecraft, which shows that wind speeds persist deep into the atmosphere.