摘要
针对现有的基于元胞自动机(CA)的径流模型无法随时应用于复杂的城市环境,提出了一种基于CA的新型降雨-径流模型(RRCA)来模拟洪水淹没。该模型考虑了12种城市情景而非单一土地利用类型的精细径流生成过程,通过水资源供需的新过渡规则(WS-WD)模拟汇流过程。将RRCA与基于CA的洪水模型(E2DCA)进行比较,结果表明,RRCA和E2DCA与基准模型具有良好的一致性,R^(2)大于0.9,且RRCA在模拟效率和准确性上表现更好。因此,在城市内涝管理中,可通过精准模拟有效识别排水困难区域,从而及时采取相应措施。
Aiming at the existing runoff model based on cellular automata(CA)that cannot be readily applied to complex urban environments,a novel CA-based rainfall-runoff model(RRCA)is proposed to simulate flood inundation.The model includes a fine-grained runoff generation process that considers 12 urban scenarios instead of a single land-use type,and a catchment process determined by the new transition rule for water supply and demand(WS-WD)transition rule.The RRCA is compared with the CA-based flood model(E2DCA).The results show that the RRCA and E2DCA are in good agreement with the baseline model,and R^(2)is greater than 0.9;The RRCA performs better in terms of simulation efficiency and accuracy.In urban flood management,the areas with drainage difficulties can be effectively identified through accurate simulation so that timely measures can be taken.
作者
崔志美
黄维
黄志都
邬蓉蓉
CUI Zhi-mei;HUANG Wei;HUANG Zhi-du;WU Rong-rong(Guangxi Power Grid Limited Liability Company Electric Power Science Research Institute,Nanning 530000,China)
出处
《水电能源科学》
北大核心
2024年第10期16-19,43,共5页
Water Resources and Power
基金
广西电网科技创新项目(GXKJXM20222160)。
