These events include heat waves, droughts and heavy rainy seasons. Especially in Europe, but also in Russia, the number and intensity of permanent weather patterns have increased in recent decades and extreme weather conditions have occurred in different places at the same time.
“In our study, we show that the ongoing weather conditions are increasingly similar in the summer in the North Atlantic, Europe and Siberia, which favors stronger extreme weather events. In Europe alone, about 70 percent of the land is already permanent.” Peter Hoffmann From the Potsdam Institute for Climate Impact Research (PIK), the lead author of a study published in Nature science reports.
He continued: “This means that people, especially in densely populated Europe, are likely to experience more and also more intense and dangerous weather phenomena.”
Prolonged sunny or rainy conditions lead to extreme events
To prove this, the researchers analyzed the persistence of certain weather conditions. They used established methods of comparing images to atmospheric data, comparing millions of consecutive weather cycles worldwide over the past 40 years. In particular, they looked at two individual extreme events, the 2010 heatwave over Russia and the exceptionally dry summer in Europe in 2018.
“We found that the weather is generally more permanent now than it was a few decades ago,” said Hoffmann, adding: “Especially in summer, heat waves often last longer now, and rainy events tend to last longer and are stronger. can change both on the warm and dry side and on the side of even rain. “
The increase in permanent weather conditions is largely due to dynamic changes in the atmosphere, as westerly winds tend to stop propelling weather systems, which therefore become more tenacious, turning some sunny days into several weeks of heat waves as well as heavy rainfall. floods.
Climate models may underestimate the rise of continuous weather patterns
Like the eye of a skilled observer, the new image comparison method systematically scans atmospheric fields and helps assess the extent to which successive weather patterns change over time or remain stable.
Fred Hattermann, another co – author of the study and also a PIK researcher, explained the potential of the new approach: “Our method will dramatically improve the interpretation of long – term climate impacts. and underestimate the increase in weather resistance – thus underestimating the extremes of the weather in Europe. ” This is all the more important with ongoing climate change.
โRecent events and ongoing research have shown that the number and intensity of extreme events have increased due to rising global temperatures,โ Hattermann noted. “To counter this worrying trend, the goal must be to reduce global greenhouse gas emissions and thus limit climate change.”
Source: ANI
Source: The Nordic Page