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All about weather. Learn how meteorologists forecast the weather and why some weather systems are hard to predict.
Uuendatud: 1 tund 19 minutit tagasi

Heat takes its toll on mental health

25. Märts 2020 - 20:38
Hot days increase the probability that an average adult in the US will report bad mental health, according to a new study.
Kategooriad: Välismaa uudised

International ozone treaty stops changes in Southern Hemisphere winds

25. Märts 2020 - 18:08
The Montreal Protocol of 1987 phased out production of ozone-destroying substances such as chlorofluorocarbons (CFCs). Beginning around 2000, concentrations of those chemicals in the stratosphere started to decline and the ozone hole began to recover. In this study, researchers have shown that around the year 2000, the circulation of the Southern Hemisphere also stopped expanding polewards -- a pause or slight reversal of the earlier trends.
Kategooriad: Välismaa uudised

Global warming influence on extreme weather events has been frequently underestimated

18. Märts 2020 - 20:37
Analysis shows global warming is intensifying the occurrence of unprecedented hot spells and downpours faster than predicted by historical trends.
Kategooriad: Välismaa uudised

Coral reefs 'weathering' the pressure of globalization

11. Märts 2020 - 16:08
More information about the effects human activities have on Southeast Asian coral reefs has been revealed, with researchers looking at how large-scale global pressures, combined with the El Niño Southern Oscillation (ENSO) climate pattern, can detrimentally impact these delicate marine ecosystems.
Kategooriad: Välismaa uudised

Climate shifts prompt shrubs and trees to take root in open areas

10. Märts 2020 - 16:15
Wild, treeless landscapes are becoming more wooded as climate change leads to warming temperatures and wetter weather, research suggests.
Kategooriad: Välismaa uudised

How new data can make ecological forecasts as good as weather forecasts

9. Märts 2020 - 19:00
Soon, ecologists thinks we'll be able to pull off the same forecasting feat for bird migrations and wildlife populations as for climate forecasts. That's because just as those recurring changes in climate have predictable consequences for humans, they also have predictable effects on plants and animals.
Kategooriad: Välismaa uudised

What we don't know (about lakes) could hurt us

5. Märts 2020 - 20:22
As the power of extreme weather events increase with climate change, a team of scientists warn that lakes around the world may dramatically change, threatening ecosystem health and water quality.
Kategooriad: Välismaa uudised

New version of Earth model captures climate dynamics

3. Märts 2020 - 18:33
A new high-resolution Earth systems model has been designed to predict climate trends into the next century. The model will provide the scientific basis by which to mitigate the effects of extreme climate on energy and other essential services.
Kategooriad: Välismaa uudised

Big data helps farmers adapt to climate variability

27. Veebruar 2020 - 21:42
A new study has precisely quantified soil and landscape features and spatial and temporal yield variations in response to climate variability.
Kategooriad: Välismaa uudised

The climate and increased extreme weather affect our energy systems

20. Veebruar 2020 - 20:05
Climate change, with more and more storms and heat waves, also has consequences for our energy supply. An international research team has now developed a new method for calculating how extreme weather affects energy systems.
Kategooriad: Välismaa uudised

Jet stream not getting 'wavier' despite Arctic warming

19. Veebruar 2020 - 22:28
Rapid Arctic warming has not led to a 'wavier' jet stream around the mid-latitudes in recent decades, pioneering new research has shown.
Kategooriad: Välismaa uudised

Warming oceans are getting louder

18. Veebruar 2020 - 19:44
One of the ocean's loudest creatures is smaller than you'd expect -- and will get even louder and more troublesome to humans and sea life as the ocean warms, according to new research.
Kategooriad: Välismaa uudised

Computer-based weather forecast: New algorithm outperforms mainframe computer systems

13. Veebruar 2020 - 19:42
The exponential growth in computer processing power seen over the past 60 years may soon come to a halt. Complex systems such as those used in weather forecast, for example, require high computing capacities, but the costs for running supercomputers to process large quantities of data can become a limiting factor. Researchers have recently unveiled an algorithm that can solve complex problems with remarkable facility -- even on a personal computer.
Kategooriad: Välismaa uudised

Storm-induced sea level spikes differ in origin on US east, Gulf coasts

11. Veebruar 2020 - 23:05
The Gulf Coast, especially New Orleans, is particularly vulnerable to storm surge. As the climate warms, the region will be even more susceptible to extreme storm surges, according to new research.
Kategooriad: Välismaa uudised

Extreme weather conditions can tax urban drainage systems to the max

5. Veebruar 2020 - 20:23
During a typical Canadian winter, snow accumulation and melt -- combined with sudden rainfalls -- can lead to bottlenecks in storm drains that can cause flooding. With that in mind, researchers have been examining urban stormwater drainage systems, and they too have concerns about the resilience of many urban drainage systems.
Kategooriad: Välismaa uudised

Deep learning accurately forecasts heat waves, cold spells

4. Veebruar 2020 - 18:25
Using an advanced form of deep learning, researchers created a computer system that learned how to accurately predict extreme weather events, like heat waves, up to five days in advance using minimal information about current weather conditions. Ironically, the self-learning 'capsule neural network' uses a method reminiscent of 'analog' weather forecasting, which was made obsolete by computers in the 1950s.
Kategooriad: Välismaa uudised

Aerosols have an outsized impact on extreme weather

3. Veebruar 2020 - 21:14
A reduction in manmade aerosols in Europe has been tied to a reduction in extreme winter weather in the region.
Kategooriad: Välismaa uudised

Losing coastal plant communities to climate change will weaken sea defenses

3. Veebruar 2020 - 18:43
New research suggests the impact of rising sea levels and the increased frequency and intensity of extreme storm events on coastal plants needs to be placed in greater focus.
Kategooriad: Välismaa uudised

Rapid weather swings increase flu risk

30. Jaanuar 2020 - 20:10
New research shows that rapid weather variability as a result of climate change could increase the risk of a flu epidemic in some highly populated regions in the late 21st century.
Kategooriad: Välismaa uudised

Meteorites reveal high carbon dioxide levels on early Earth

30. Jaanuar 2020 - 0:44
Tiny meteorites no larger than grains of sand hold new clues about the atmosphere on ancient Earth, according to scientists.
Kategooriad: Välismaa uudised

29. märtsi ekstreemumid 2010-2020


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Täna Tallinnas kõige soojem on olnud 15,9°C (2007) ja külmem -15,6°C (1867).

Täna Tartus kõige soojem on olnud 16,8°C (2007) ja külmem -21,6°C (1963).


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30.03 hommikul tugevneb põhja- ja loodetuul 12-15, puhanguti 21 m/s, pärastlõunal pöördub kirdesse.


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