GUO Xiaoying,XIAO Tiangui.Study on Landslide Susceptibility Zoning and Meteorological Early Warning Model in Northeastern Sichuan[J].Journal of Chengdu University of Information Technology,2019,(06):625-631.[doi:10.16836/j.cnki.jcuit.2019.06.011]
川东北地区滑坡易发性区划及气象预警模型研究
- Title:
- Study on Landslide Susceptibility Zoning and Meteorological Early Warning Model in Northeastern Sichuan
- 文章编号:
- 2096-1618(2019)06-0625-07
- Keywords:
- atmospheric science; meteorological disasters and disaster prevention and mitigation; Northeastern Sichuan; landslide; meteorological warning model; logistic regression
- 分类号:
- P429
- 文献标志码:
- A
- 摘要:
- 针对川东北地区频繁发生的滑坡灾害,利用坡高、归一化植被指数、坡度、剖面曲率、距水系、道路距离、当日降水和前期有效降水数据,采用逻辑回归计算方法对川东北地区的滑坡灾害进行易发性区划,建立川东北地区滑坡灾害气象预警模型并进行验证,结果表明川东北地区整体上都处于滑坡灾害易发区,滑坡灾害易发程度南高北低; 选取2次滑坡灾害过程验证滑坡预警模型,检验结果模型模拟结果较好,实现了川东北地区基于地质条件的降雨诱发区域滑坡灾害预警模型的研究。
- Abstract:
- For the frequent landslide disasters in northeastern Sichuan, based on slope height, normalized vegetation index, slope, section curvature, distance from water system, road distance, current day precipitation and previous effective precipitation data, using the logistic regression calculation method to carry out susceptibility zoning of landslide disasters in northeastern Sichuan, and establish a weather warning model for landslide disasters in northeastern Sichuan and verify it. The results show that the northeastern Sichuan region is generally in the landslide disaster-prone area, and the landslide disaster is prone to high in the south and low in the north. The landslide warning model was verified by two landslide disasters, and the simulation results of the test results were good. The research on the landslide hazard warning model based on geological conditions in the northeastern Sichuan Basin was realized.
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备注/Memo
收稿日期:2019-03-06基金项目:国家科技支撑计划资助项目(2015BAC03B00); 国家电网公司科技资助项目(SGLNDKOOKJJS1700200)