基于暴雨内涝模型的莆田沿海地区风暴潮灾害评估

发布时间：2018-07-30 06:48

【摘要】：利用ArcGIS对莆田沿海地区的地形、下垫面属性和排水设施及排水运作方式进行预处理,建立台风降水、风暴潮共同影响下的莆田沿海地区内涝模型。应用雷达估算降水及自动雨量站数据计算的热带气旋"南玛都"过程面雨量,以及此次暴雨过程沿岸海区和河口的时变水位作为模型的边界条件,对莆田地区风暴潮灾害风险进行评估试验。针对2011年9月1日热带气旋"南玛都"造成的莆田沿海地区风暴潮及暴雨灾害,利用暴雨内涝模型进行评估试验研究,将模拟结果与实况灾情进行对比,结果表明模型能够较客观地反映"南玛都"过程降水和风暴潮共同作用的灾害情况。
[Abstract]:The waterlogging model of Putian coastal area under the influence of typhoon precipitation and storm surge was established by using ArcGIS to pretreat the topography, underlying surface properties, drainage facilities and drainage operation mode of Putian coastal area. Using radar estimation of precipitation and automatic precipitation station data to calculate the tropical cyclone "Nanmato" process area rainfall, and the time-varying water level in coastal areas and estuaries during this rainstorm process, as the boundary conditions of the model. To evaluate the risk of storm surge disaster in Putian area. In view of storm surge and rainstorm disaster in Putian coastal area caused by tropical cyclone "Nama du" on September 1, 2011, using rainstorm waterlogging model to evaluate and study, the simulation results are compared with the actual disaster situation. The results show that the model can objectively reflect the disasters caused by precipitation and storm surge during the "Nanmato" process.
【作者单位】：天津市气象科学研究所;天津市西青区气象局;福建省气候中心;天津市气象台;
【基金】：淮河流域气象开放研究基金(HRM201501) 福建省气象局开放式气象科学研究基金项目(2014K03) 国家自然科学基金青年基金项目(41305088) 天津市自然科学基金一般项目(16JCBJC21500)资助
【分类号】：P731.23

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