顾及高水位影响的潮滩淹没动态仿真算法

Algorithm for Dynamic Flood Simulation of Intertidal Zone Considering High-water's Effects

正确的潮滩显示信息是海岸带管理、防洪决策等应用的重要决策依据。此文针对传统算法的不足,提出了一种顾及高水位影响的潮滩淹没动态仿真算法。此算法在提取数字伴潮海岸线(DTS)的基础上,快速确定不连通的洼地及其影响域。同时考虑高水位的影响,动态检测不连通洼地的变化,建立洼地索引表,正确有效地对潮滩淹没区进行动态表达。实验结果证明了此算法具有更高的准确性与效率,可以实现顾及高水位影响的潮滩淹没实时动态仿真。

Correct flood simulation of intertidal zone is crucial to marine applications such as coastal management and anti-flood. Aiming at the drawbacks of conventional algorithms, an algorithm for dynamic flood simulation of intertidal zone considering high-water＇s effects was proposed. This algorithm could fast determine disconnected depressions and their influence areas on the basis of acquiring digital tide-coordinates shorelines （DTS）. Moreover, the algorithm detected the disconnected depressions dynamically considering high water, created an index of depressions, and displayed the flood areas correctly and efficiently, Experimental results demonstrate that the proposed algorithm is more accurate and efficient than the old algorithms, and it can dynamically display flood areas considering high-water＇s effects.