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All about weather. Learn how meteorologists forecast the weather and why some weather systems are hard to predict.
Uuendatud: 3 tundi 13 minutit tagasi

Nor'easters rivaling hurricanes as flood threat to the Mid-Atlantic

3. Juuni 2022 - 19:49
While coastal flooding from tropical weather events such as hurricanes tend to get a lot of media attention, a new study from the University of Delaware found that midlatitude weather events like Nor'easters can produce flood levels just as severe and occur much more frequently in the Mid-Atlantic.
Kategooriad: Välismaa uudised

As the grid adds wind power, researchers have to reengineer recovery from power outages

1. Juuni 2022 - 1:19
When electric grids go down, there's no way to restore them -- 'blackstart' them -- with power from wind turbines. A team is now working to develop strategies and controllers that would reenergize power grids dominated by wind power. In Iowa, wind turbines now produce 55% of the state's electricity.
Kategooriad: Välismaa uudised

Scientists use AI to update data vegetation maps for improved wildfire forecasts

31. Mai 2022 - 17:27
A new technique uses artificial intelligence to efficiently update the vegetation maps that are relied on by wildfire computer models to accurately predict fire behavior and spread.
Kategooriad: Välismaa uudised

Fjords emit as much methane as all the deep oceans globally

30. Mai 2022 - 15:57
During heavy storms, the normally stratified layers of water in ocean fjords get mixed, which leads to oxygenation of the fjord floor. But these storm events also result in a spike in methane emissions from fjords to the atmosphere. Researchers have estimated that the total emissions of this climate-warming gas are as great from fjords as from all the deep ocean areas in the world put together.
Kategooriad: Välismaa uudised

Astrophysics student discovers link between global warming and locally unstable weather

25. Mai 2022 - 17:29
Climate change gives rise to more unstable weather, local droughts and extreme temperature records, but a coherent theory relating local and global climate is still under active development. Now an astrophysics student has used a mathematical approach -- inspired by research in the Universe's light -- to unveil how global temperature increase engenders locally unstable weather on Earth.
Kategooriad: Välismaa uudised

Human influence is the culprit for warm and wet winters in northwest Russia

24. Mai 2022 - 17:05
A research team reveals the reason behind hot and wet winters in northwest Russia from 2019/20 winter. Anthropogenic influence found to be the reason for widespread warming according to the CMIP6 data.
Kategooriad: Välismaa uudised

Climate change likely to reduce the amount of sleep that people get per year

20. Mai 2022 - 20:28
Most research looking at the impact of climate change on human life has focused on how extreme weather events affect economic and societal health outcomes on a broad scale. Yet climate change may also have a strong influence on fundamental daily human activities -- including a host of behavioral, psychological, and physiological outcomes that are essential to wellbeing. Investigators now report that increasing ambient temperatures negatively impact human sleep around the globe.
Kategooriad: Välismaa uudised

Scientists hone long-range forecasting of US tornadoes, hail

18. Mai 2022 - 18:39
New research identifies three specific orientations of atmospheric phenomena occurring near the equator over the Maritime continent that increase the probability of severe U.S. weather events three to four weeks later.
Kategooriad: Välismaa uudised

Improved wind forecasts save consumers millions in energy costs

17. Mai 2022 - 18:22
Scientists determined that by increasing the accuracy of weather forecasts over the last decade, consumers netted at least $384 million in energy savings. The researchers based their predictions on NOAA's High Resolution Rapid Refresh model, which provides daily weather forecasts for every part of the U.S. These include wind speed and direction data, which utilities can use to gauge how much energy their turbines will produce.
Kategooriad: Välismaa uudised

Extreme storms could help protect beaches from sea level rise, new study finds

12. Mai 2022 - 16:26
Deep sand movements stirred up by intense storms may offset some of the impacts of coastal erosion caused by sea level rise.
Kategooriad: Välismaa uudised

World's ocean is losing its 'memory' under global warming

6. Mai 2022 - 22:14
Using future projections from the latest generation of Earth System Models, a recent study found that most of the world's ocean is steadily losing its year-to-year memory under global warming.
Kategooriad: Välismaa uudised

Rapid adaptation of deep learning teaches drones to survive any weather

5. Mai 2022 - 15:56
Neural-Fly technology could one day build the future of package delivery drones and flying cars.
Kategooriad: Välismaa uudised

Scientists identify the most extreme heatwaves ever recorded globally

4. Mai 2022 - 21:45
A new study has revealed the most intense heatwaves ever across the world -- and remarkably some of these went almost unnoticed decades ago.
Kategooriad: Välismaa uudised

New portal improves forecasts of devastating storms in West Africa

4. Mai 2022 - 2:02
Storms in the Sahel region, which can reach over 100km in size, have become more extreme since the 1980s due to global warming, with more intense rainfall. An online portal will enable forecasters in West Africa to provide communities with earlier and more reliable warnings about large storms.
Kategooriad: Välismaa uudised

Study develops framework for forecasting contribution of snowpack to flood risk during winter storms

4. Mai 2022 - 2:01
A new study provides a framework for a snowpack decision support tool that could help water managers prepare for potential flooding during rain-on-snow events, using hourly data from existing snow monitoring stations.
Kategooriad: Välismaa uudised

Bay Area storms get wetter in a warming world

28. Aprill 2022 - 22:22
Researchers used supercomputers to run high-resolution climate simulations that show how historically-impactful storm events could look in a warmer world. The researchers simulated five of the most powerful storms that have hit the San Francisco Bay Area since 1984, then projected how these historical storms would look in 2050 and 2100. They determined that some of these extreme events would deliver 26-37 percent more rain by 2100.
Kategooriad: Välismaa uudised

New method can predict summer rainfall in the Southwest months in advance

28. Aprill 2022 - 19:54
As reservoir levels dwindle in the Southwest, scientists have developed a method to estimate summer rainfall in the region months in advance. These seasonal predictions can enable state and local officials to make key reservoir and water allocation decisions earlier in the season and support more efficient water management.
Kategooriad: Välismaa uudised

New climate modeling predicts increasing occurrences of flash flooding across most of the U.S.

26. Aprill 2022 - 22:36
A research team has created simulations from coupled climate and hydrologic models that demonstrate widespread increases in the occurrences of flash flooding events across most of the United States.
Kategooriad: Välismaa uudised

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