How extreme is the weather in Kiev, Ukraine, which has become a world of ice and snow after snow?

In Kiev, Ukraine, after the heavy snow, the streets of Kiev are covered with deep snow. Kiev, Ukraine becomes a world of ice and snow after snow. How extreme is the weather in this country? The following details are introduced:

1. Since February, Ukraine and other places have experienced extremely cold weather, and the lowest temperature in Ukraine and other places is MINUS 4℃. The snow in the mountain area is stable, and it is not dependent on the winter temperature, and it is not concentrated in the coldest month. However, the extremely unstable duration of snow in lowlands is short, and it is highly dependent on negative temperature for survival. Snow is concentrated in the coldest month, which is very sensitive to temperature changes and easy to heat up. Secondly, the winter snowfall in China is mainly caused by the infiltration of cold air from Siberia. Water vapor comes from the warm and humid airflow in the south or southeast, and the air humidity in this area also has a great influence on snowfall. Therefore, climate warming will lead to the strengthening of air flow exchange and water circulation between north and south, which will increase snowfall in the Yangtze River basin. Therefore, the regional difference between dry areas with less snow and wet areas with more snow is further aggravated. In addition, low temperature has an opposite effect on the formation of snow and snow. Extremely low negative temperature is not conducive to the formation of snow, but it is beneficial to the maintenance of snow. Therefore, the snowfall season in China is concentrated in early winter and early spring, and the glacial action area of extra-high mountains is even concentrated in summer. On the contrary, the snowfall decreases in the coldest month, and the colder the region, the more significant the decrease. Therefore, warming may lead to an increase in snowfall in the northernmost and mountainous areas of China.

second, the frequent occurrence of extreme weather is due to the increasing emission of greenhouse gases, which makes global warming a major trend. Climate warming causes atmospheric instability, and Jiangsu is located in a complex warm temperate climate zone, which will lead to more and more severe convective weather such as rainstorm, typhoon, hail and tornado, more and more extreme weather phenomena, and more and more difficult weather forecast. Influenced by the warm and humid air current in the Atlantic Ocean, most areas have a temperate continental climate, while the southern part of Crimea has a subtropical climate. The average temperature in January is-7.4℃, and that in July is 19.6℃. The annual precipitation is 3mm in the southeast and 6-7mm in the northwest, mostly in June and July. Controlled by continental air mass all year round, precipitation increases from south to north, and natural vegetation changes from south to north from temperate desert and temperate grassland to coniferous forest in sub-cold zone.

third, the average temperature in January in the coldest month in winter in Ukraine is minus 7 degrees in the north and east, and 2 to 4 degrees above zero in the south bank of Crimea. In summer, the highest temperature in most parts of the country is 36 and 39 degrees, while the lowest temperature in winter is about MINUS 4 degrees in the east and MINUS 3 degrees in the south. The annual average precipitation gradually decreases from the west and northwest to the southeast and south. When the annual precipitation is the highest, it reaches 2 mm in Carpathian mountain area, 97 mm in Polynesia area and 5 mm in southern area, but when the annual precipitation is the lowest, it is 8 mm, 3 mm and 1 mm respectively. The dry weather in Ukraine occurs once every 2-3 years on average. Dry weather poses a constant threat to agriculture.