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1,000+ results for "Weather"

Ozone depletion over North Pole produces weather anomalies

Researchers found a correlation between Arctic ozone depletion and extreme weather events in the Northern Hemisphere. Simulations suggest that reduced ozone levels contribute to warmer temperatures and droughts in central Europe, while wet conditions prevail in polar regions.

SourceETH Zurich·JournalNature Geoscience·TypeComputational simulation/modeling·DateJul 7, 2022

Methods from weather forecasting can be adapted to assess risk of COVID-19 exposure

Researchers developed a smartphone app that harnesses weather forecasting data to provide individuals with a granular understanding of their COVID-19 risk. The app would blend various types of data, including surveillance testing and wearable sensor data, to forecast the spread of disease across a network of human contacts.

SourceCalifornia Institute of Technology·JournalPLOS Computational Biology·TypeComputational simulation/modeling·DateJun 23, 2022

Chaos theory provides hints for controlling the weather

Researchers have used computer simulations to show that small adjustments to certain variables can modify weather systems, mimicking the 'butterfly attractor' phenomenon in chaos theory. This approach could lead to weather control technology and prevent extreme windstorms.

SourceRIKEN·JournalNonlinear Processes in Geophysics·TypeComputational simulation/modeling·DateMar 28, 2022

Chaos to control: Scientists use a ‘butterfly attractor’ to control and change the weather

Researchers at RIKEN Center for Computational Science used computer simulations to show that extreme weather phenomena can be controlled by making small adjustments to variables in the weather system. The study's findings promise multiple applications, including preventing and mitigating extreme windstorms.

SourceEuropean Geosciences Union·JournalNonlinear Processes in Geophysics·TypeComputational simulation/modeling·DateMar 28, 2022

New study questions explanation for last winter’s brutal U.S. cold snap

A new study questions a widely-held theory that sudden stratospheric warming caused the extreme cold weather in Texas and other parts of the US. The research suggests that the polar vortex's disruption, which occurred six weeks after the initial warming event, was not significant enough to impact the weather.

SourceNational Center for Atmospheric Research/University Corporation for Atmospheric Research·JournalNature Communications·TypeComputational simulation/modeling·DateMar 7, 2022

Changes in air pollution linked with dry spells in Asia and summer heatwaves in Europe

New research from the University of Reading found that changes in air pollution levels in Asia and Europe may have driven prolonged European summer extremes and Central Asian dry spells. The study revealed that air pollution reductions in Europe strengthened the jet stream, while increases in Asia weakened it.

SourceUniversity of Reading·JournalNature Communications·TypeComputational simulation/modeling·DateMar 3, 2022

Likelihood of extreme autumn fire weather has increased 40%, Oregon State modeling shows

A new study led by Oregon State University finds that climate change has increased the likelihood of hot, dry, windy autumn weather that can lead to severe fires in the region. The research, which examined conditions during recent large fires, found a 40% increase in extreme fire weather conditions due to human-caused climate change.

SourceOregon State University·JournalGeophysical Research Letters·TypeComputational simulation/modeling·DateFeb 22, 2022

Two centuries and 500 studies later, more research needed on urban climate and weather

A review of over 500 studies on urban climate and weather reveals significant gaps in current understanding and modeling. The researchers emphasize the need for better observation-model integration, improved communication between scientists and end users, and standardized meteorological stations.

SourceInstitute of Atmospheric Physics, Chinese Academy of Sciences·JournalAdvances in Atmospheric Sciences·DateJan 30, 2022

As the mercury rises, the urban heat penalty grows, especially at night

Residents in eastern US cities experience up to 4.9 degrees Celsius increase in nighttime urban heat stress index, with extra 30 minutes of uncomfortable weather per degree C temperature increase. This effect is more pronounced in the southeastern US, where residents face up to five extra hours of uncomfortable weather during summer.

SourceDOE/Pacific Northwest National Laboratory·JournalGeophysical Research Letters·TypeData/statistical analysis·DateDec 16, 2021

Ambulance call-outs for heart attacks rise when air pollution is high, German study finds

A German study finds that ambulance call-outs for heart attacks increase when air pollution is high, but decrease with warmer weather. The research highlights the need for better planning and resource allocation by hospitals to address climate change-related changes in weather conditions.

SourceThe European Society of Anaesthesiology and Intensive Care (ESAIC)·JournalEuropean Journal of Anaesthesiology·DateDec 16, 2021

Changing ocean currents are driving extreme winter weather

New research from the University of Arizona suggests that a slowdown in the Atlantic Meridional Overturning Circulation (AMOC) will intensify extreme cold weather in the US. The study found that without the AMOC, extremely cold winter weather would become more frequent and severe.

SourceUniversity of Arizona·JournalCommunications Earth & Environment·TypeComputational simulation/modeling·DateOct 20, 2021

Study: New Pacific Ocean circulation findings may hold key to better predicting impact of El Niño and La Niña

Researchers at York University have discovered a conveyer-like motion of heat across the equator in the Pacific Ocean called the Cross Equatorial Cell (CEC), which influences El Niño and La Niña. This finding may lead to improved prediction of year-to-year disruptions to weather patterns, benefiting countries worldwide.

SourceYork University·JournalJournal of Geophysical Research Oceans·TypeData/statistical analysis·DateOct 4, 2021

Rapid Arctic warming likely drives extreme winter weather events in the US

A new study finds that rapid Arctic warming is driving extreme winter weather in the US, particularly intense snowfall events and anomalous cold snaps. The findings reveal a physical link between Arctic amplification and stratospheric polar vortex disruption, which are contributing to increased frequency of winter weather extremes.

Predicting climate anomalies: a real challenge

The World Climate Research Programme has made efforts to improve climate prediction, but many problems remain, including predicting extreme weather events. The Center for Climate System Prediction Research (CCSP) aims to tackle these challenges through research on ENSO, extended-range weather forecasting, and interannual-to-decadal cli...

SourceInstitute of Atmospheric Physics, Chinese Academy of Sciences·JournalAtmospheric and Oceanic Science Letters·DateAug 31, 2021

Sandia uncovers hidden factors that affect solar farms during severe weather

A study published by Sandia National Laboratories reveals that older solar farms are more susceptible to extreme weather events, while snowstorms have the highest impact on electricity production. Machine learning analysis also found that low sunlight levels due to cloud cover and geographical features of the farm are significant factors.

SourceDOE/Sandia National Laboratories·JournalApplied Energy·TypeData/statistical analysis·DateAug 31, 2021

Would we still have severe thunderstorms over North America if the Gulf of Mexico were filled in with land?

A Purdue University study suggests that the eastern half of the US is a hotspot for severe thunderstorms due to high terrain, while the Gulf of Mexico plays a relatively weak role. Removing the Gulf would shift storm patterns eastward into Illinois and reduce them over southern Texas.

SourcePurdue University·JournalJournal of Climate·TypeComputational simulation/modeling·DateAug 23, 2021

Slam the door shut: Improving building energy by evaluating building airflow

Scientists from Incheon National University identified interzonal airflow across household entrance doors as a dominant factor in calculating heating loads. They found that strong stack effect and weather-driven airflow rates were larger than external infiltration rates, making conventional airtightness measures unreliable.

SourceIncheon National University·JournalRenewable and Sustainable Energy Reviews·TypeExperimental study·DateAug 9, 2021

Ultramarathon Mountain Race weather was predicted; impact was not

Researchers found that high-impact weather events can be extreme, especially in context of human activities. Detailed hypothermia risk forecasts were not available for the race site, contributing to tragedy. The study highlights the need for improved warning systems and collaborations among scientists, governments, social media, and ci...

SourceInstitute of Atmospheric Physics, Chinese Academy of Sciences·JournalAdvances in Atmospheric Sciences·DateJul 30, 2021

The weather forecast for Venus

Scientists use infrared sensors to study the nighttime weather of Venus, discovering that north-south winds run in the opposite direction at night. This observation could help build more accurate models of the Venusian weather system and provide insights into Earth's weather patterns.

SourceUniversity of Tokyo·JournalNature·DateJul 21, 2021

US corn and soybean maladapted to climate variations, study shows

A University of Illinois study finds that US corn and soybean varieties have become more resilient to extreme heat and drought but less adapted to normal weather patterns, leading to reduced productivity. The researchers call for crop breeders to focus on developing crop varieties for diverse weather patterns.

Cosmic rays: Coronal mass ejections and cosmic ray observations at Syowa Station in the Antarctic

Researchers at Shinshu University and the National Polar Research Institute found a Forbush decrease in cosmic ray counts during a CME event, but the CR density exceeded its original level before exiting the Magnetic Flux Rope. The high-speed solar wind caused this unusual enhancement of CR density through local compression of the MFR.

SourceShinshu University·JournalJournal of Space Weather and Space Climate·DateJun 15, 2021