Target Diagnosis Anti Risk Lightning Detection Security House

- May 25, 2020-

Source: China Meteorological News Agency  Editor: Zhang Lin

In Guizhou Province, where there are eight mountains, one water and one field, most of the land is barren and weather disasters are common.

"The house was completely destroyed. If it was not my father who drove me to run fast, people would be gone!" Luo Jiangwen, a 52-year-old Luo Jiangwen, a resident of Xuetangbao Community, a resettlement resettlement site in Huichuan District, Zunyi City, Zunyi City, 45 years ago The flood disaster still lingered. What reassures Luo Jiangwen is that the place where he lives now is much better. Even in the event of heavy rain, lightning, and other meteorological disasters, the community emergency broadcast will "report" to everyone in advance.

Poverty alleviation and relocation moved Guizhou Province to 1.88 million people moved out of the deep mountain area and Shishan area.

From moving to stable, the Guizhou Provincial Meteorological Bureau took the initiative to give full play to the advantages of meteorological science and technology, "targeted diagnosis" such as heavy rain, lightning and other meteorological disasters, escorting the provincial poverty alleviation and relocation projects.

Disaster risk zoning, disaster prevention "with a heart in mind"

In 2019, the Guizhou Provincial Meteorological Bureau organized research on zoning techniques for heavy rain, lightning, and freezing weather disaster risk, and compiled a map of weather disaster risk zoning based on the poverty alleviation and relocation areas.

"Ten different miles in Guizhou, each disaster has different manifestations and disaster thresholds in different places." Li Xiao, deputy director of the Guizhou Climate Center, explained that this work seems simple and only needs to deal with three kinds of meteorological disasters, but the details It becomes complicated in every county, and the specific operation is very "burning brain".

In this regard, the Guizhou Meteorological Bureau fully investigated in 9 cities (prefectures) and decided to use the natural breakpoint method to classify. Heavy rain and freezing are classified into five risk levels: high, second highest, medium, second low, and low. Lightning is divided into 5 high-prone areas, second-high-prone areas, medium-prone areas, second-low-prone areas, and low-prone areas. Risk level.

"Each resettlement site or resettlement area has an assessment report." Li Xiao said that in the assessment report, the Guizhou Provincial Meteorological Bureau will propose corresponding rectification measures for different risks. For example, the risk of heavy rain disasters in the red area is extremely high. The poverty alleviation and relocation project area has a great impact, and it is necessary to prevent the torrential rain and the torrential floods and geological disasters from causing damage to people and buildings.

Lightning protection and safety detection

"Three lead wires, with a distance of 17 meters, meet the standard." On May 10, Yang Guang and Zou Haidong, staff members of the Meteorological Bureau of Songtao Miao Autonomous County in Tongren City, came to the Tuanshan resettlement site, and installed lightning protection devices for relocation and resettlement houses , Lightning protection, radio wave intrusion and other aspects of comprehensive testing, and issued a lightning protection test report.

The annual average number of thunderstorm days in Guizhou is about 50 days, with a maximum of 76 days. "In the past, when we talked about thunder and color change, no matter how loud the thunder is, everyone can live in peace." Deng Fa, deputy director of the Ecological Immigration Bureau of Songtao Miao Autonomous County, introduced that the county's entire floor plan is shaped like a saddle, surrounded by mountains, Severe weather, especially lightning disasters, are common. Therefore, the location of the 33 resettlement sites in the county is chosen to be flat and not relying on mountains, avoiding the minefield as much as possible.

"The safety tolerance of 38,130 people must not be negligent." When the Meteorological Bureau of Songtao Miao Autonomous County and the Ecological Immigration Bureau docked to carry out lightning protection safety inspection, Deng Fa's heart was more solid.

In 2020, the Guizhou Provincial Meteorological Bureau listed the complete completion of meteorological disaster risk assessment and lightning protection detection of concentrated resettlement relocation communities as one of the important tasks of meteorological disaster prevention and mitigation in poor areas. "At the same time as the testing, the knowledge propaganda on lightning protection was also carried out in the resettlement site." Chishui City has frequent lightning activities, and Zhang Changyou, the head of the city's meteorological bureau, said that as early as March, the Chishui city meteorological bureau conducted a comprehensive investigation of the Joint Ecological Migration Bureau The lightning protection safety situation at the resettlement site should be fully covered before the lightning strike period.

As of now, the province has completed the lightning protection safety inspection of 639 resettlement sites, and the inspection work of the remaining resettlement sites will be completed by the end of May.