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flood risk region
相关语句
  洪涝危险区
     DEFINITION OF FLOOD RISK REGION IN SOUTH JIANGSU AND FLOOD CONTROL COUNTERMEASURES
     苏南地区洪涝危险区的划定及其治理对策
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  相似匹配句对
     Review of risk analysis on flood
     洪水风险分析的研究进展与展望
短句来源
     Considerations on flood risk analysis
     关于洪水风险分析几个问题的思考
短句来源
     On Flood
     论《洪水》
短句来源
     The Flood
     洪水
短句来源
     Evaluation of Flood Risk in Poyang Lake Region Basing on GIS
     基于GIS的鄱阳湖地区洪水灾害风险评价
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The flood risk map compilation is one of the key assignments in flood plain management. A compiling method of flood risk map and its applications are imroduced in this paper. The compiling procedures are as follows:1. to generalize river networks in the plain so as to simulate natural river conditions; 2. to calculate water stage and discharge by using 1-D unsteady open channel flow numerical computation; 3. to compare water stage with DEM (Digital Elevation Model) ; 4. to delimit...

The flood risk map compilation is one of the key assignments in flood plain management. A compiling method of flood risk map and its applications are imroduced in this paper. The compiling procedures are as follows:1. to generalize river networks in the plain so as to simulate natural river conditions; 2. to calculate water stage and discharge by using 1-D unsteady open channel flow numerical computation; 3. to compare water stage with DEM (Digital Elevation Model) ; 4. to delimit the regions where the elevations are lower than water stage as flood risk regions.The flood risk map can be applied to: 1. analysis of flood status; 2. evaluation of losses of flood disaster; 3. determination of land price and disaster insurance investment in flood risk regions; 4. policy-maker assistance in hazard mitigation and prevention; 5. distribution of industry, agriculture and residential settlement; 6. special map applications.

洪涝风险图的编制,是洪涝平原管理中的一项重要内容,对洪涝平原生产布局和人类经济活动具有指导作用。本文介绍了一种洪涝风险图的编制方法。首先概化平原内河网,用明渠一维非恒定流模拟水流运动,得到各地的水位和流量,比较水位和数学地形模型(DEM)的高程,将水位高过DEM的地方划为洪涝危险区。本文以太湖流域湖西区为例作出洪涝风险图,并且介绍了洪涝风险图在国民经济部门的应用。

Based on the rainfall in 1954 and current river networks,the upmost water levels in the South of Jiangsu province were calculated.Flood defense standards were made by analysing the heights of dikes,drainage powers and flood data synthetically.The regions which failed to achieve the above standard are flood risk regions.

根据水文学和计算水力学的方法,计算出本区1954年雨型、现状地面条件下各断面日平均最高水位,同时再综合分析各圩区的堤高、排涝能力及灾害水文等资料,制定出危险圩区的标准。凡不及上述标准的圩区及圩外地区,均划为洪涝危险区,即在遇到大暴雨后,这些地区是可能出现洪涝灾害危险程度最大的地区。

 
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