基于MIKE模型的南沙区内涝模拟研究  

Research on the Simulation of Waterlogging in Nansha District Based on MIKE Model

作　　者：吴子洁 徐承毅 付志君 WU Zijie;XU Chengyi;FU Zhijun(Guangdong Building Research Yuansheng Engineering Testing Co.,Ltd.,Dongguan 523000,China)

机构地区：[1]广东建科源胜工程检测有限公司,广东东莞523000

出　　处：《广东水利水电》2024年第10期80-85,共6页Guangdong Water Resources and Hydropower

摘　　要：基于广州市南沙区2022年的Landsat 8遥感影像数据,通过ENVI 5.3中监督分类方法,解译得到南沙区土地利用数据,通过构建二维地表淹没模型,模拟4种重现期(2年、10年、50年、100年一遇)暴雨条件下,研究区的洪涝淹没与易涝点分布情况。结果表明,该区域土地利用类型以透水区(养殖坑塘、水体、林地与耕地)为主,占研究区总面积的75.41%;当遭遇100年一遇暴雨影响时,会产生4个较为严重的积水区域,最大淹没水深超过1.6 m,易涝区域集中于长距离跨海大桥与沿海人工围垦区域。研究成果可为制定南沙区城市防洪策略提供参考。Based on the Landsat 8 remote sensing imagery data of 2022 from Nansha District,Guangzhou,land use data for the district was derived using supervised classification in ENVI 5.3.Through the construction of a two-dimensional surface inundation model,the study simulated flood inundation and the distribution of waterlogging in the study area during rainfall events of four different return periods(2-year,10-year,50-year,and 100-year storms).The results showed that the majority of the area consisted of permeable surfaces such as aquaculture ponds,natural water bodies,forested areas,and farmland,accounting for 75.41%of the total study area.Under the impact of a 100-year rainstorm,four severe water accumulation zones emerged,with inundation depths exceeding 1.6 meters in the most severe areas.The flood-prone areas were concentrated around long-distance sea-crossing bridges and coastal artificially reclaimed regions.The findings of this study could serve as a valuable reference for the formulation of urban flood control strategies in Nansha District.

关 键 词：MIKE模型 遥感影像解译 设计暴雨 洪涝模拟 易涝点 城市防洪 

分 类 号：TU992[建筑科学—市政工程]