基于GIS的汉中市气象灾害风险评估  

Risk Assessment of Meteorological Disasters in Hanzhong City Based on GIS

作　　者：杨幸 王平[1] 任宾宾[1,2] YANG Xing;WANG Ping;REN Bin-bin(College of Tourism and Geography,Yunnan Normal University,Kunming 650500,China;College of Tourism Management and Geography,Hulunbeier College,Hulunbeier 021008,China)

机构地区：[1]云南师范大学旅游与地理科学学院,云南昆明650500 [2]呼伦贝尔学院旅游管理与地理科学学院,内蒙古呼伦贝尔021008

出　　处：《江西农业学报》2019年第1期67-77,共11页Acta Agriculturae Jiangxi

摘　　要：基于GIS软件以1971～2010年汉中市气象数据作为数据源,对该区域的暴雨、干旱、连阴雨、低温等气象灾害的空间分布进行了研究,并采用风险指数法对各气象灾害进行了风险评估;在此基础上对汉中市综合气象灾害的空间分布特征进行了插值分析。结果显示:汉中市23%的地区为气象灾害低风险区,且集中在中部盆地;而海拔较高的山地地区为综合气象灾害高风险区,占全市总面积的70%左右。Based on GIS software,by using the meteorological data of Hanzhong city from 1971 to 2010 as data source,we researched the spatial distribution of various meteorological disasters(rainstorm,drought,continuous rain,and low temperature)in this area,and evaluated the risk of these meteorological disasters by using the method of risk index.On the basis of these,the spatial distribution characteristics of comprehensive meteorological disaster in Hanzhong city were analyzed by using interpolation method.The results showed that:the 23%regions of Hanzhong city had low risk of meteorological disaster,and they were concentrated in the middle basin;about 70%regions of this city had high risk of comprehensive meteorological disaster,and they were distributed in the mountainous area with high altitude.

关 键 词：气象灾害 风险评估 防灾减灾 

分 类 号：S166[农业科学—农业气象学]