In Russia for the last 50 years has increased the intensity and frequency of rainfall, the growth rate of 1-2% every decade. This is evidenced by a survey of climatologists from the Institute of atmospheric physics RAS. The researchers analyzed precipitation data, recorded domestic weather stations for half a century of observations. In their opinion, the increase in torrential rains and caused their natural disasters can influence global processes: climate change in the world and the increase in mean annual temperature in Russia. The results of the study will help to understand the mechanisms of occurrence of natural hazards, experts believe.
- RIA Novosti
- © Alex Maligawa
Scientists have noted the increase in the share of heavy rains in total precipitation in Russia from 1966 to 2016. In the work, bringing together data on more than 300 domestic weather stations, was attended by the climate scientists of the Institute of atmospheric physics RAS, Moscow state University named after M. V. Lomonosov, Institute of Oceanology, RAS, all-Russian research Institute of hydrometeorological information — World data center, Institute of geography, Russian Academy of Sciences and the French Institute of ecological Earth Sciences, the Russian scientific Fund.
All the rain in Russia for 50 years, divided into study for drizzling, continuous and heavy. Scientists noticed that each decade the share of rainfall in total precipitation in our country has grown by 1-2%. Separately tracked rainfall patterns by regions. The country is divided into five broad zones: North and South of the European part of the Russian Federation, the North and the South of Siberia and the far East.
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In each zone there was a slight increase in total rainfall and a significant increase in the share of heavy rains, and in some regions this process takes place faster. In the South the Far East, the downpours have become twice as abundant, which may be caused by the change of the monsoon climate and atmospheric pollution, say the meteorologists. In the Northern regions, the proportion of heavy rains has also increased, but it has not exceeded the contribution of the “quiet” of rain.
Rainfall is harder to predict than usual, and they cause significant effects, the researchers note. Caused by rainfall floods and floods threaten lives and cause significant economic damage. The results of the study will help in forecasting of hazards and the prevention of natural disasters, believe the climatologists. The authors also believe that the intensity of the water cycle in nature can influence global climate change worldwide and the rise in the average temperature in Russia.
“We plan to continue to work to identify the direct mechanisms of these changes and to associate heavy rains and other hazards — hail, squalls and tornadoes,” said the project Manager, senior researcher, Institute of atmospheric physics named after A. M. Obukhov of RAS Alexander Chernokulskiy.