摘要
论文以四川省雅安市雨城区为研究区,将逻辑回归模型引入区域降雨型滑坡预警预报,建立了同时考虑降雨强度和降雨过程的降雨临界值表达式。在滑坡危险性区划的基础上,研究提出了区域降雨型滑坡预警预报指标,包括临界值降雨指数R和滑坡发生指数L,并利用20台自动遥测雨量计和地质灾害群测群防网络,采用历史记录雨量和预报雨量,建立了区域降雨型滑坡预报预警体系。
Yucheng District of Ya＇ an City, Sichuan province, was chosen as the research area in the paper. Logic regression model was applied into the precipitation-induced landslide early waming and forecast. The expression of rainfall threshold considering both the rainfall intensity and rainfall process was established. Based on the research on the landslide risk zoning and landslide rainfall threshold, the research proposes the regional precipitation-induced landslide early warning and forecast index, including the threshold rainfall index R and landslide occurrence index L. Twenty automatic telemetering rain gauges combining local people monitoring were used to establish the precipitation-induced landslide forecast and early warning system based on the historical rainfall precipitation and forecasted rainfall precipitation.
出处
《水文地质工程地质》
CAS
CSCD
北大核心
2006年第2期101-103,107,共4页
Hydrogeology & Engineering Geology
关键词
降雨型滑坡
预报预警
逻辑回归
临界值
precipitation- induced landslide
forecast and early warning
logic regression
threshold
