摘要
为了直观、动态反映暴雨洪涝灾害的淹没情景,该文基于Floodarea模型,以宁波市鄞州区为研究区,选取"菲特"台风事件为例,利用降雨数据、数字高程模型数据、遥感影像数据,通过对宁波市鄞州区"菲特"台风期间城市内涝的产汇流过程进行水文计算,实现城市内涝状况可视化数值模拟。结果表明,内涝情况随降雨的持续而增强,降雨减弱后局部地区内涝情况减弱,水系汇水明显,且积涝监测点在整个内涝事件中都存在明显的内涝情况,因此Floodarea模型能够较好地模拟鄞州区城市内涝过程以及积涝空间分布,能够对城市内涝预防、救灾和灾后重建提供技术依据。
In order to reflect intuitive and dynamic rainstorm floods drowned,based on Floodarea model,taking Ningbo Yinzhou district as the study area,and taking typhoon FeiTe as an example,the hydrological calculation of urban waterlogging during typhoon "FeiTe" in Yinzhou district of Ningbo city was carried out using rainfall data,digital elevation model data,and remote sensing image data. The visualization numerical simulation of urban waterlogging was realized. The results show that waterlogging increases as rainfall continues. After the rainfall weakened,the local waterlogging weakened and the water catchment was obvious. And the waterlogging monitoring point has obvious waterlogging in the whole waterlogging event. So Floodarea model can well simulate yinzhou urban waterlogging process and spatial distribution. It can provide technical basis for urban waterlogging prevention,disaster relief and post-disaster reconstruction.
作者
薛丰昌
朱一晗
顾人颖
赵显富
XUE Fengchang;ZHU Yihan;GU Renying;ZHAO Xianfu(School of Remote Sensing&Geomatics Engineering,Nanjing University of Information Science&Technology,Nanjing 210044,China;Meteorological Disaster Geographic Information Engineering Laboratory,Nanjing University of Information Science&Technology,Nanjing 210044,China;School of Geographical Sciences,Nanjing University of Information Science&Technology,Nanjing 210044,China;Yinzhou Meteorological Office,Ningbo,Zhejiang 315194,China)
出处
《测绘科学》
CSCD
北大核心
2020年第8期181-187,198,共8页
Science of Surveying and Mapping
基金
2018年江苏省研究生科研创新计划项目(KYCX18_1034)。
