| 基于GIS和AHP的潍坊市冰雹灾害风险区划 |
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| 引用本文： | 杨益,陈贞宏,王潇宇,于飞.基于GIS和AHP的潍坊市冰雹灾害风险区划[J].中国农业气象,2011(Z1). |
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| 作者姓名： | 杨益 陈贞宏 王潇宇 于飞 |
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| 作者单位： | 贵州省普定县气象局;贵州省安顺市气象局;南京信息工程大学;贵州省山地环境气候研究所; |
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| 摘 要： | 利用潍坊市1971-2000年9个气象站逐月冰雹及其灾情信息,根据层次分析、加权综合评价、极差标准归一化等方法,建立影响潍坊市冰雹灾害的主要评估模型,即致灾因子危险性、承灾体易损性和防灾减灾能力,综合各项指标通过ArcGIS9.3平台得到潍坊市冰雹灾害风险区划图。结果表明:潍坊市年均降雹日数随地形高程增加呈增加趋势,冰雹灾害发生的高风险区在该市西部地区,其发生冰雹灾害次数多、抗灾能力弱是该区发生雹害概率高的主要原因,较高风险以上的地区占全市一半以上区域,而低风险区则是位于该市中部偏南地区,这与历史冰雹灾情基本吻合。对潍坊市历史冰雹灾害进行风险评估,旨在为该市防灾减灾提供科学依据。
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| 关 键 词： | 冰雹灾害 风险区划 GIS AHP 潍坊市 |
GIS/AHP-based Risk Zonation of Hail Disaster in Weifang |
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| YANG Yi,CHEN Zhen-hong,WANG Xiao-yu,YU Fei.GIS/AHP-based Risk Zonation of Hail Disaster in Weifang[J].Chinese Journal of Agrometeorology,2011(Z1). |
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| Authors: | YANG Yi CHEN Zhen-hong WANG Xiao-yu YU Fei |
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| Institution: | YANG Yi1,CHEN Zhen-hong2,WANG Xiao-yu3,YU Fei4 (1.Meteorological Bureau of Puding County,Guizhou Province,Puding 562100,China,2.Meteorological Bureau of Anshun,Anshun 561000,3.Department of Geospatial Information Sciences,NUIST,Nanjing 210044,4.Guizhou Institute of Mountainous Environment and Climate,Guiyang 550002) |
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| Abstract: | According to previous studies,among all possible measures to avoid and alleviate natural disaster,it is the simplest and most effective method to improve the natural disaster management level to the risk management level through risk zonation on the basis of the scientific research.The spatial information technology was used for risk assessment on historical hail disaster of Weifang in the study,in order to provide scientific basis on disaster prevention and reduction.Based on the AHP,weighted summation eva... |
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| Keywords: | Hail disaster Risk zonation GIS AHP Weifang |
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