摘要
提出了一种基于数字伴潮海岸线(digital tide-coordinated shoreline,DTS)的潮滩淹没区仿真算法。此算法在建立数字潮滩模型和瞬时水位模型的基础上实时提取DTS。根据DTS的类型确定不连通的洼地,并快速计算其影响域,同时合理地确定潮滩与水面模型的表达方式,正确构建和显示淹没区。实验结果证明,本文算法在表达的准确性和计算的速度上明显优于传统算法。
An algorithm is presented for simulating the intertidal flooded areas based on digital tide-coordinated shoreline （DTS）. On the basis of creating digital intertidal zone model （DIZM） and instantaneous water surface model （IWSM）, DTSs are acquired. Disconnect depressions are determined depending on types of DTS, and influencing areas of them are computed efficiently. Moreover, reasonable rendering modes of DIZM and IWSM are determined, and flooded areas are built and displayed correctly. Experimental results demonstrate that the proposed algorithm is more advantageous than traditional algorithms in accuracy and efficiency.
出处
《武汉大学学报（信息科学版）》
EI
CSCD
北大核心
2007年第7期637-640,共4页
Geomatics and Information Science of Wuhan University
基金
武汉大学测绘遥感信息工程国家重点实验室开放研究基金资助项目(WKL(05)0304)
地理空间信息工程国家测绘局重点实验室开放研究基金资助项目(200634)
国家自然科学基金资助项目(40671161)
新世纪优秀人才支持计划资助项目(NCET-05-0626)
