Exclusive 丨 "West China Autumn Rain" will rebound "revenge"?Look at the forecast information

Author:Chuanguan News Time:2022.08.31

Chuanguan News reporter Chen Ting

The Central Meteorological Observatory predicts that in the next 10 days, there are many rainfall weather in the Sichuan Basin, the eastern part of the Qinghai -Tibet Plateau, and west of Yunnan, and the cumulative rainfall is more or closer to the same year. In other words, Sichuan is about to usher in the period of "West China Autumn Rain", commonly known as "autumn rain".

What are the characteristics of this year's "West China Autumn Rain"? After experiencing the strongest high -temperature weather in the history of meteorological observation, will the "West China Autumn Rain" in Sichuan rebound "retaliation"? The reporter interviewed Sun Zhaoxuan, senior engineer of the Sichuan Provincial Climate Center.

According to Sun Zhaoxuan, the prediction results of the Sichuan Provincial Climate Center showed that in 2022, the intensity of the "West China Autumn Rain" in Sichuan was close to slightly stronger, but it was not an extreme state.

The Sichuan Provincial Climate Center predicts that this fall, the precipitation of the northwest, northeast, southwest, and central part of the Sichuan Basin is more than that of the year. ~ 50%.

In the early extreme high -temperature weather incident, how could it affect the drought in some areas of the Sichuan Basin in some areas of the Sichuan Basin? The Sichuan Climate Center predicts that Qiu Mianyu will relieve the drought in the northeast and central part of the basin, but there is less precipitation in the south of the basin and Panxi.

At present, Sichuan is still in the flood season. Sun Zhaoxuan reminded that the soil was loose due to the continuous sun and heat and rain in the early stage. On the one hand, a short -term heavy precipitation may occur in mid -September. Although Huaxi Autumn Rain "is a drizzle, if the water content of the soil is saturated, it may also cause geological disasters, and we need to pay attention to prevention.

Observations of the Sichuan Provincial Climate Center show that "Huaxi Autumn Rain" usually begins around August 30, ending around November 1st. “当秋雨区有50%以上的国家气象观测站连续5天降水量达到'秋雨日'标准时，我们就判定秋雨开始了。”孙昭萱介绍，近日，四川多地有降水发生，四川省气候中心正Pay close attention to precipitation. As of August 30, the arrival of "West China Autumn Rain" has not been confirmed.

tips

"West China Autumn Rain" is a unique weather phenomenon in the autumn (September -November) of Huaxi region in my country. In autumn, the frequent cold air and warm and humid air met in the area, which exacerbated the front of the surface and produced a longer rainy weather. Although the precipitation of Huaxi Autumn Rain is generally less than summer, it is easy to cause autumn floods for continuous rainfall or heavy rainfall. The main administrative areas involved in Huaxi Qiuyu include Hubei, Hunan, Chongqing, Sichuan, Guizhou, Shaanxi, Ningxia, and Gansu.

In the 1920s and 1930s, Zhu Kezhen and Tu Changwang successively classified the mountainous areas around the Yunnan -Guizhou Plateau and the Sichuan Basin as the West China Climate Zone; in the late 1950s, Gao Youxi and Guo Qiyun systematically studied the autumn rain in China, and and and also. The concept of "West China Autumn Rain" was proposed, and it was finally named.

If "West China Autumn Rain" is the official name, it also has many folk names. Shaanxi is called "autumn", Guizhou region is called "autumn rainstorm", and Sichuan region is called "autumn rain".

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