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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 26 minutit tagasi

Evaporation critical to coronavirus transmission as weather changes

22. September 2020 - 18:23
As COVID-19 cases continue to rise, it is increasingly urgent to understand how climate impacts the spread of the coronavirus, particularly as winter virus infections are more common and the northern hemisphere will soon see cooler temperatures. Researchers studied the effects of relative humidity, environmental temperature, and wind speed on the respiratory cloud and virus viability. They found a critical factor for the transmission of the infectious particles is evaporation.
Kategooriad: Välismaa uudised

2020 Arctic sea ice minimum at second lowest on record

22. September 2020 - 0:04
The 2020 minimum extent, which was likely reached on Sept. 15, 2020 measured 1.44 million square miles (3.74 million square kilometers).
Kategooriad: Välismaa uudised

Indian monsoon can be predicted better after volcanic eruptions

18. September 2020 - 22:45
Large volcanic eruptions can help to forecast the monsoon over India - the seasonal rainfall that is key for the country's agriculture and thus for feeding one billion people. As erratic as they are, volcanic eruptions improve the predictability, a research team now finds. What seems to be a paradox is in fact due to a stronger coupling between the monsoon over large parts of South and South-East Asia and the El Niño phenomenon after an eruption.
Kategooriad: Välismaa uudised

Solar storm forecasts for Earth improved with help from the public

18. September 2020 - 18:33
Scientists used observations recorded by members of the public to increase accuracy of computer model predictions of when harmful CMEs will hit Earth.
Kategooriad: Välismaa uudised

NASA monitors carbon monoxide from California wildfires

15. September 2020 - 4:29
The observations from Earth orbit show high-altitude concentrations of the gas that are more than 10 times typical amounts.
Kategooriad: Välismaa uudised

Arctic transitioning to a new climate state

14. September 2020 - 18:22
The fast-warming Arctic has started to transition from a predominantly frozen state into an entirely different climate with significantly less sea ice, warmer temperatures, and more rain, according to a comprehensive new study of Arctic conditions.
Kategooriad: Välismaa uudised

$500 billion question: What's the value of studying the ocean's biological carbon pump?

10. September 2020 - 20:04
A new study puts an economic value on the benefit of research to improve knowledge of the biological carbon pump and reduce the uncertainty of ocean carbon sequestration estimates.
Kategooriad: Välismaa uudised

Developing models to predict storm surges

8. September 2020 - 20:10
Storm surges sometimes can increase coastal sea levels 10 feet or more, jeopardizing communities and businesses along the water, but new research shows there may be a way to predict periods when it's more likely that such events occur. Researchers have developed models to predict extreme changes in sea level by linking storm surges to large-scale climate variability.
Kategooriad: Välismaa uudised

Climate change will decimate Palm Springs, Coachella Valley tourism

8. September 2020 - 18:33
A new study finds that climate change will have a devastating effect on the greater Palm Springs area's dominant industry -- tourism. Due to climate change, the number of days above 85 degrees between November and April is projected to increase up to 150% by the end of the century.
Kategooriad: Välismaa uudised

A difficult year for forests, fields and meadows

8. September 2020 - 16:37
The warm, dry summer of 2018 has left clear traces in various ecosystems. Researchers have found that if the climate continues to warm up, higher altitudes can also expect negative consequences in the future.
Kategooriad: Välismaa uudised

New mathematical method shows how climate change led to fall of ancient civilization

3. September 2020 - 17:56
A researcher developed a mathematical method that shows climate change likely caused the rise and fall of an ancient civilization. A new article outlines the technique he developed and shows how shifting monsoon patterns led to the demise of the Indus Valley Civilization, a Bronze Age civilization contemporary to Mesopotamia and ancient Egypt.
Kategooriad: Välismaa uudised

Gravity wave insights from internet-beaming balloons

3. September 2020 - 1:24
A better understanding of how gravity waves in the upper atmosphere interact with the jet stream, polar vortex and other phenomena could be key to improved weather predictions and climate models.
Kategooriad: Välismaa uudised

Loggerhead turtles record a passing hurricane

1. September 2020 - 18:22
Caught in an Atlantic hurricane, satellite-tagged loggerhead turtles changed their dive behavior and movement patterns as the storm passed. The tags also recorded changes in the environment.
Kategooriad: Välismaa uudised

Scientists unlock crops' power to resist floods

31. August 2020 - 23:57
Foundational science has discovered the molecular structure of plant enzymes that could be manipulated to create flood-resistant crops, vital as weather events become more extreme due to global warming.
Kategooriad: Välismaa uudised

How weather news impacts public transit ridership

31. August 2020 - 23:57
Researchers found a correlation between words used in media coverage related to weather or air quality, and transit ridership. It's not enough yet to say that media coverage causes changes in ridership. But it's enough to explore what factors in to a person's decision to ride transit and whether that decision can be nudged.
Kategooriad: Välismaa uudised

Natural disasters must be unusual or deadly to prompt local climate policy change

29. August 2020 - 3:49
Natural disasters alone are not enough to motivate local communities to engage in climate change mitigation or adaptation, a new study has found. Rather, policy change in response to extreme weather events appears to depend on a combination of factors, including fatalities, sustained media coverage, the unusualness of the event and the political makeup of the community.
Kategooriad: Välismaa uudised

Fidelity of El Niño simulation matters for predicting future climate

28. August 2020 - 15:10
A new study revealed that correctly simulating ocean current variations hundreds of feet below the ocean surface - the so-called Pacific Equatorial Undercurrent - during El Niño events is key in reducing the uncertainty of predictions of future warming in the eastern tropical Pacific.
Kategooriad: Välismaa uudised

Misconceptions about weather and seasonality impact COVID-19 response

27. August 2020 - 17:18
Misconceptions about the way climate and weather impact exposure and transmission of SARS-CoV-2, the virus that causes COVID-19, create false confidence and have adversely shaped risk perceptions, say researchers.
Kategooriad: Välismaa uudised

How cold was the ice age? Researchers now know

26. August 2020 - 21:14
Scientists have nailed down the temperature of the last ice age -- the Last Glacial Maximum of 20,000 years ago - to about 46 degrees Fahrenheit.
Kategooriad: Välismaa uudised

Understanding how birds respond to extreme weather can inform conservation efforts

21. August 2020 - 19:00
How do different bird species respond to extreme weather events that occur for different amounts of time, ranging from weekly events like heat waves to seasonal events like drought? And how do traits unique to different species -- for example, how far they migrate or how commonly they occur -- predict their vulnerability to extreme weather?
Kategooriad: Välismaa uudised

24. septembri ekstreemumid 2010-2020


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