京津冀地区高速公路冰冻灾害风险区划

doi:10.3969/j.issn.1673-503X.2018.01.006

Abstract

Abstract: Freezing disaster is one of the main meteorological disasters at motorway during winter in Beijing-Tianjin-Hebei region,and it is very important to make risk zoning of freezing disaster in this region.Based on the daily surface meteorological observational data at 173 weather stations from 1981 to 2015 in Beijing-Tianjin-Hebei region,the risk zoning of freezing disaster at motorway was proposed using the methods of Geographic Information System (ArcGIS) and Analytical Hierarchy Process (AHP).The results indicated that the sensitivity of freezing disaster in Beijing-Tianjin-Hebei region is high in the northwest and low in the southeast.The region of the highest freezing-disaster risk is located in Zhangbei grassland of Zhangjiakou,Hebei province,and the area of high sensitivity of freezing disaster accounts for 29.2%.The regions with a medium and high sensitivity of freezing disaster are mainly located in Beijing and the mountainous area of the northwestern part of Chengde,with an area ratio of 61.3% and 64.0%,respectively.In combination with the motorway network data,the Zhangjiakou-Shijiazhuang motorway and the northern part of Zhangjiakou-Chengde motorway in Zhangjiakou have a high risk of freezing disaster.This work can provide a reference to the prevention and mitigation of freezing disaster for the relevant management departments.

Key words: Beijing-Tianjin-Hebei region, Motorway, Freezing disaster, Geographic Information System (GIS), Risk zoning

CLC Number:

P429

WANG Chun-ling, GUO Wen-li, LI Xun, JIANG Jiang, LI Hong-yu, CHEN Chuan-lei. Risk zoning of freezing disaster at motorway in Beijing-Tianjin-Hebei region[J]. Journal of Meteorology and Environment, 2018, 34(1): 45-51.

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http://www.jme1984.net.cn/EN/Y2018/V34/I1/45

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Risk zoning of freezing disaster at motorway in Beijing-Tianjin-Hebei region

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