长江科学院院报2019，Vol.36Issue(10)：117-121,5.DOI:10. 11988/ckyyb. 20190944
3DGIS支持下的洪水风险三维动态推演
Three-dimensional Dynamic Deduction of Flood Risk Supported by 3DGIS
摘要
Abstract
The aim of this research is to enhance our cognition on the details of inundation area in the flood risk dis-play by MIKE FLOOD model, and reflect dynamically the flood propagation process when danger such as a breach occurs. We summarized the existing expression methods of flood risk, examined the fusion and expression methods of flood process in 3DGIS scene, and built a program framework for 3D dynamic derivation of flood risk. With the South Juma River in Xiongan New Area as a case study, we calculated the flood process after the dam break based on the MIKE Flood models, constructed a 3DGIS environment using the Open Scene Graph technology, and ana-lyzed the flood process in a real three-dimensional topography. Result demonstrates that the presented method is prior to conventional 2D method in terms of detail expression and dynamic simulation. It can also describe the inun-dation process in multiple scales, and reflects the dynamic flood process more intuitively and efficiently.关键词
洪水风险/三维动态推演/3DGIS/MIKE模型/雄安新区Key words
flood risk/3D dynamic deduction/3DGIS/MIKE model/Xiongan New Area分类
天文与地球科学引用本文复制引用
刘成堃,马瑞,义崇政..3DGIS支持下的洪水风险三维动态推演[J].长江科学院院报,2019,36(10):117-121,5.基金项目
国家重点研发计划项目(2017YFC1502601,2017YFC1501206) （2017YFC1502601,2017YFC1501206）
