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冰川冻土  2012 

基于灾损评估的青海高原冰雹灾害风险区划

, PP. 1409-1415

Keywords: 冰雹,风险区划,损失评估

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Abstract:

利用青海高原1961-2010年42个气象站逐次冰雹过程及其灾情信息,采用滑动平均、标准归一化及线性回归等方法,在分析致灾因子危险性、承灾体易损性评估指标的基础上,建立了冰雹灾害区划模型,并结合ArcGIS9.3平台得到青海高原冰雹灾害风险区划图.结果表明青海东部农业区、环青海湖地区、柴达木盆地东部及三江源地区中东部为易受冰雹灾害影响的特高风险或高风险区域;祁连山地区为中风险区,而低风险区则位于柴达木盆地中、西部.区划结果与历史冰雹灾情基本吻合,旨在为该区防灾减灾提供科学依据.

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