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All about weather. Learn how meteorologists forecast the weather and why some weather systems are hard to predict.
Uuendatud: 2 tundi 39 minutit tagasi

What is causing more extreme precipitation in northeastern U.S.?

31. Juuli 2018 - 23:41
From Maine to West Virginia, the Northeast has seen a larger increase in extreme precipitation than anywhere else in the US. Prior research found that these heavy rain and snow events, defined as a day with about two inches of precipitation or more, have been 53 percent higher in the Northeast since 1996. A new study finds that hurricanes and tropical storms are the primary cause of this increase, followed by thunderstorms along fronts and extratropical cyclones like Nor'easters.
Kategooriad: Välismaa uudised

Solar flares disrupted radio communications during September 2017 Atlantic hurricanes

30. Juuli 2018 - 21:54
An unlucky coincidence of space and Earth weather in early September 2017 caused radio blackouts for hours during critical hurricane emergency response efforts, according to a new study. The new research, which details how the events on the Sun and Earth unfolded side-by-side, could aid in the development of space weather forecasting and response, according to the study's authors.
Kategooriad: Välismaa uudised

Australia facing extremely intense rain storms

30. Juuli 2018 - 19:02
Large increase in sudden downpours in the last 50 years, with the amount of water falling in hourly rain storms (for example thunderstorms) increasing at a rate 2 to 3 times higher than expected.
Kategooriad: Välismaa uudised

Europe may thrive on renewable energy despite unpredictable weather

26. Juuli 2018 - 23:12
Researchers have shown how long-term weather patterns affect wind and solar renewable energy technologies across Europe. The work suggests that despite the unpredictable nature of wind and solar energy, the European power system can comfortably generate at least 35 percent of its electricity using these renewables alone without major impacts on prices or system stability.
Kategooriad: Välismaa uudised

Leggy lizards don't survive the storm

26. Juuli 2018 - 16:00
Biologists have published a first-of-its-kind look at the physical characteristics of lizards that seem to make the difference between life and death in a hurricane.
Kategooriad: Välismaa uudised

New clues to origins of mysterious atmospheric waves in Antarctica

26. Juuli 2018 - 15:57
Scientists find a link between gravity waves in the upper and lower Antarctic atmosphere, helping create a clearer picture of global air circulation.
Kategooriad: Välismaa uudised

Cold wave reveals potential benefits of urban heat islands

23. Juuli 2018 - 21:30
Researchers have found that the urban heat island effect -- cities are hotter in the summer than their surrounding areas -- also helps keep cities warmer during extreme cold. The findings have implications for urban planners in areas such as New York City or Chicago, which experience marked seasonal temperature swings.
Kategooriad: Välismaa uudised

Warming temperatures could increase suicide rates across the US and Mexico

23. Juuli 2018 - 21:28
By comparing historical temperature and suicide data, researchers found a strong correlation between warm weather and increased suicides. They estimate climate change could lead to suicide rate increases across the US and Mexico.
Kategooriad: Välismaa uudised

Wave energy converters are not geared towards the increase in energy over the last century

20. Juuli 2018 - 18:28
Wave energy converters are designed to generate the maximum energy possible in their location and take a typical year in the location as a reference. Researchers have been exploring how ocean energy in Ireland has evolved during the last century. The results reveal an increase of up to 40%, which directly affects the output of the converters.
Kategooriad: Välismaa uudised

In a warming climate, Arctic geese are rushing north

19. Juuli 2018 - 21:21
As Arctic temperatures continue to rise, migratory barnacle geese have responded by speeding up their 3,000-kilometer migration in order to reach their destination more quickly with fewer stops along the way, according to new evidence. Unfortunately, the birds' earlier arrival isn't making as much of a difference as one might expect.
Kategooriad: Välismaa uudised

Scientists use satellites to measure vital underground water resources

19. Juuli 2018 - 18:22
With the hope of providing water resource managers with better tools to help keep aquifers healthy, a team of scientists are using the latest space technology to look underneath Earth's surface to measure this precious natural resource.
Kategooriad: Välismaa uudised

Sudden cold weather may increase stroke mortality

19. Juuli 2018 - 18:22
Study conducted in Southern Hemisphere's subtropical zone detects correlation between drop in temperature and rise in deaths from stroke, especially among women and older people.
Kategooriad: Välismaa uudised

More category 5 hurricanes forecasted by scientists

18. Juuli 2018 - 22:22
Researchers have learned from studying 2012's Hurricane Sandy, that we are more likely to see larger, more powerful hurricanes in the future.
Kategooriad: Välismaa uudised

Scientists recover possible fragments of meteorite that landed in marine sanctuary

17. Juuli 2018 - 22:51
The largest recorded meteorite to strike the United States in 21 years fell into NOAA's Olympic Coast National Marine Sanctuary, and researchers have recovered what are believed to be pieces of the dense, interstellar rock after conducting the first intentional hunt for a meteorite at sea.
Kategooriad: Välismaa uudised

How does the sun's rotational cycle influence lightning activity on earth?

17. Juuli 2018 - 16:47
A collaborative research team has taken the first steps to understanding how the sun's rotational cycle influences lightning activity. They found answers in an unusual source -- diaries dating back to the 1700s.
Kategooriad: Välismaa uudised

Growth rates of loblolly pine trees

12. Juuli 2018 - 21:16
Researchers used ecological forecasting to predict how changes in temperature, water, and concentrations of carbon in the atmosphere in the Southeastern United States may affect the future growth rates of trees.
Kategooriad: Välismaa uudised

Pulse of the polar vortex revealed: A key to mapping future storms

10. Juuli 2018 - 18:01
If you can predict the path of the jet stream, the upper atmosphere's undulating river of wind, then you can predict weather -- not just for a week or two, but for an entire season. A new study moves toward that level of foresight by revealing a physical link between the speed and location of the jet stream and the strength of the polar vortex, a swirl of air that usually hovers over the Arctic.
Kategooriad: Välismaa uudised

Grasslands more reliable carbon sink than trees

10. Juuli 2018 - 3:29
A study has found that increased drought and wildfire risk make grasslands and rangelands a more reliable carbon sink than trees in 21st century California. As such, the study indicates they should be given opportunities in the state's cap-and-and trade market, which is designed to reduce California's greenhouse gas emissions to 40 percent below 1990 levels by 2030.
Kategooriad: Välismaa uudised

A bird's eye view of the Arctic

5. Juuli 2018 - 17:04
Drones and other unmanned technologies can cost-effectively collect weather data in harsh or remote environments and contribute to better weather and climate models, according to a new study.
Kategooriad: Välismaa uudised

In a warming world, could air conditioning make things worse?

3. Juuli 2018 - 21:14
As climate change continues to push summer temperatures ever higher, the increased use of air conditioning in buildings could add to the problems of a warming world by further degrading air quality and compounding the toll of air pollution on human health, according to a new study.
Kategooriad: Välismaa uudised

23. septembri ekstreemumid 2008-2018


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