基于网格的暴雨洪涝灾害风险评价 -以哈尔滨市主城区为例
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黑龙江省气象服务中心

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P694

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黑龙江省气象局科学技术研究项目(编号:HQGG202105)


Risk assessment of rainstorm and flood disaster in main Urban area of Harbin based on grid
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Heilongjiang Meteorological Service Center

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    摘要:

    以气象数据、社会经济数据和地理信息数据等资料为基础,构建0.01°格网,结合自然灾害风险评估理论,从暴雨致灾因子危险性、暴露度和脆弱性3方面对哈尔滨主城区洪涝灾害进行精细化风险评估与区划。结果显示:哈尔滨主城区洪涝危险性自西北向东南逐渐增加,香坊南部及松北、道里、南岗、道外交汇处受洪涝危害最为严重;暴露度呈现中心高四周低的格局,高风险主要位于绕城高速以内;路网密集地带脆弱性相对较高。洪涝风险呈自西北向东南逐渐增加趋势,东部显著高于西部,主城中心、道外区西部及香坊区大部为高风险区,最大过程降水达215.4mm,受洪涝危害严重。

    Abstract:

    Based on meteorological data, socio-economic data and geographic information data, this paper constructs a grid of 0.01 ° and combines with the theory of natural disaster risk assessment to make a detailed risk assessment and zoning of flood disaster in Harbin main urban area from three aspects : risk, exposure and vulnerability. The results show that the risk of flooding in the main urban area of Harbin gradually increases from northwest to southeast, and the southern part of Xiangfang ,the intersection of Songbei, Daoli, Nangang ,Daowai are the most seriously affected by flood; The exposure is high in the center and low in the surrounding areas, and the high risk is mainly located within the expressway around the city; The road network is densely fragile. The flood risk gradually increases from northwest to Southeast, and the East is significantly higher than the West. High-risk areas are located in the city center, western Daowai and most of Xiangfang District. The maximum process precipitation in the high-risk area is 215.4mm, which is located in the center of the city, the western part of the Daowai and most of the Xiangfang, where flooding is the most serious.

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  • 收稿日期:2021-07-10
  • 最后修改日期:2021-07-10
  • 录用日期:2022-02-28
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