Today, 伏!Is Nanjing really going to autumn?

From July 16th to August 24th, the 40 -day extended version of "Three Volta" was finally over and officially came out today. After the sky, the heat will gradually dispersed, and the weather will gradually cool down.

From August 23rd to 24th, the temperature drop in Nanjing was between 6.4 ° C and 7.1 ° C. It could feel obvious temperature changes outside the outdoors, and even a little cold wearing short -sleeved shorts. On the 24th, the highest temperature was 30 ° C to 31 ° C, and the weather with cloudy to cloudy was a more comfortable temperature range. When the heat spreads, the sun was exited, and the out of the house became no longer suffering, and the air conditioner at home could finally take a break. Looking back at this "hottest summer in history", the highest temperature in Jiangsu Province reached 42.2 ° C, breaking the historical extreme value. I believe many people have such questions: Why is it cold? Is it really autumn? Will there be extreme high temperature in the future?

Beginning on the 21st, a strong cold air invaded northern Xinjiang in my country. The temperature of Urumqi was as low as 10 ° C. The Altay area even snowed. Subsequently, the cold air moved all the way to the south, reaching the northern Jiangsu region on the 23rd, and began to affect the middle and lower reaches of the Yangtze River on the 24th. The strong cold wind from the north is the main reason for the end of the high temperature weather in the south, but it is not enough to retire the extremely strong subtropical high -pressure band this year. Like Sichuan, Chongqing, Jiangxi and other places in the deputy high school center, the temperature is still high. According to Chen Tao, the chief forecaster of the Central Meteorological Observatory, the overall cold air in the northern northern to the 27th has become more active, which is more beneficial to alleviate the high temperature in the south. The typhoon "saddling" that is about to land in our country, although only through the coastal areas of Guangdong and Guangxi, the cloud system and decentralized precipitation of the typhoon also have a certain effect on the high temperature relief of the south of the south of the river.

Although the temperature in the past two days makes people feel that the summer is coming, in fact, the south is not so easy. The criteria for judging the autumn in the meteorology are that the average temperature of the slide for five consecutive days is lower than 22 ° C. Combined with the temperature changes of Jiangsu's next week, it has not yet reached the standard of autumn. Unlike the difficulties of the autumn in the south, the cooling down in the northern my country in the beginning of the autumn is obvious, "one autumn rain and one cool." The Jiangnan region belongs to the subtropical monsoon climate. When the summer and autumn are alternately affected by the atmospheric circulation, the subtropical high pressure may occur in a short period of time, resulting in the rise of the temperature and the "autumn tiger". According to the average autumn time of Nanjing, the real autumn is about around the autumn equinox.

High -temperature warning was lifted, but the brief rainfall could not relieve drought. On the 23rd, the Central Meteorological ORC continued to issue meteorological arid and orange warning. According to the monitoring of meteorological drought on August 21, southern Jiangsu, southern Anhui, southwestern Henan, western Hubei, most of Zhejiang, most of Fujian, Jiangxi, Hunan, most of Chongqing, Chongqing, Chongqing, Chongqing, Chongqing, Chongqing, Chongqing, Chongqing, Chongqing, Chongqing There are moderate to severe meteorological droughts in the majority of Sichuan, southeastern Gansu, and central and eastern Tibet. It is expected that in the next three days, most of the above -mentioned dry areas will still maintain high temperature and rainy weather, and the drought of meteorological drought will continue to develop. The party group of the Agricultural and Rural Ministry also stated at the meeting that high -temperature drought has become the biggest threat to affect the harvest of the southern autumn grain.

This year's extreme high -temperature weather not only occurred in my country, it was a global event. In the past 50 years, global warming has been developing unprecedentedly. Greenland ice covers melt, the Qinghai -Tibet Plateau melts rapidly, and a series of environmental problems are reminding us to pay attention to the abnormal climate change. If the warming is increased and the abnormal climate factor increases, the high temperature and drought in the future will continue to be upgraded. Xiang Ying, deputy director of the Jiangsu Provincial Climate Center, said: "For a long time in the future, global weather and climate fluctuations will become more intense. Extreme weather and climate such as high -temperature heat waves may become an inevitable normal. Quickly reduce greenhouse gas emissions, develop low -carbon clean energy, increase carbon exchange, change lifestyle, enhance climate toughness, and respond to climate change in a way to adapt to and slow down.

According to the city's weather forecast released by the Nanjing Meteorological Observatory on the 24th, it is expected to be cloudy to overcast during the night from the night of the 24th to the 25th. To 33 ° C. On the 26th, there were shower or thunderstorms in the city, with east winds 3 to 4, the lowest temperature was 24 ° C to 25 ° C, and the maximum temperature was 30 ° C to 31 ° C. On the 27th, there were shower or thunderstorms in the city. The east wind was 4 to 5, the lowest temperature was about 23 ° C, and the maximum temperature was 27 ° C to 28 ° C. The cooling and rainfall comes. While paying attention to adding clothes to keep your clothes warm, you do not forget to travel safety and bring umbrellas.

Nanjing Morning Post/Love Nanjing Reporter Liu Chang Picture Source: People's Daily Editor: Shi Hongyan

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