Sichuan View Think Tank ｜ Preventing the secondary disaster after the earthquake must attach great importance to the current "Mian Mian Autumn Rain" in Sichuan

Kawaguan News reporter Xiong Xiaowei

A magnitude 6.8 earthquake occurred in Luding County, Ganzi Prefecture on September 5. How to do a good job of prevention of geological disasters after the earthquake? Kawaguan Think Tank interviewed Xu Qiang, deputy principal of Chengdu University of Technology, and executive deputy director of the National Key Laboratory of Geological Disasters and Geological Environmental Protection.

"Preventing secondary geological disasters, it mainly depends on rainfall." Xu Qiang said that after the mountains were lobed, the possibility of collapse of the slurry mudslides will be more likely to occur.

On this basis, he gave two more suggestions-

First, Mianmian Qiuyu also attracts high attention. Traditionally after the earthquake, heavy rain often attracted great attention. But now the rainstorm season in July and August, Sichuan has passed, and September when it enters the autumn rain, it is easy to relax the vigilance and think that the problem is not big. But Xu Qiang reminded Mian Mianqiuyu to become a very troublesome thing.

Why does it become "troublesome"? Xu Qiang further explained the meteorological meteorological rainfall called "Huaxi Autumn Rain". Public information shows that this is a significant climatic feature of the Sichuan basin. It is endlessly descended. The rainfall is usually not large but the duration is clear. This year's West China Autumn Rain has opened. Xu Qiang said that the autumn rain of Huaxi often lasted for a long time, and the process was large in the process. The "drizzle" was immersed in the mountains and soil deeper. After reaching the critical point, deformation may lead to large -scale landslide and other geological disasters. Therefore, he suggested that he should always pay attention to meteorological forecasting, and take various risk prevention and control measures for the disaster caused by this autumn rain.

Second, it is necessary to provide precise meteorological forecast services as much as possible. Xu Qiang explained that the "refined" here refers to the refinement of time scale and space scale. For example, he said that the meteorological forecast in the past may be that "rainfall in the next three days, the Sichuan basin will rain", but now it can accurately reach the hour or even minute level, and the space can be accurate to the kilometer -level meteorological forecast -and the scope of rainfall can The prediction of time is more accurate, and the development of related work can be more accurate, which is more conducive to accurately guiding ordinary people's evacuation and guiding disaster prevention and relief work.

Xu Qiang said that the refined meteorological forecast has been completely feasible in technology, hoping to speed up the coverage of related services in the province.

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