基于余水位精化潮高模型的水位生成研究  

Determining of Tidal Heights Based on Tidal Model Improved by Residual Water Levels

作　　者：周绍炜[1] 许坚[1] 张立华[1,2] 唐岩[1] 

机构地区：[1]海军大连舰艇学院海测工程系,辽宁大连116018 [2]中国科学院地理科学与资源研究所资源与环境信息系统国家重点实验室,北京100101

出　　处：《海洋测绘》2009年第6期30-33,共4页Hydrographic Surveying and Charting

基　　金：国家自然科学基金资助项目(40801189);国家863计划资助项目(2009AA12Z202);中国博士后科学基金资助项目(20080430547)

摘　　要：研究了基于余水位精化潮高模型的水位生成方法。所提方法首先构建网格潮汐场模型,其次采用余水位提高内插模型精度。通过网格搜索策略实现了水深点所属网格的快速定位及水位生成,探索了该模型在水位改正及预报中的应用。实验表明:所提方法既可应用于水位改正又可用于水位预报,且较现有方法在精度上有所提高。A method of determining tidal heights based on tidal model improved by residual water levels is proposed. A tidal model has been constructed based on regular grids, and the model quality is improved by a method of interpolating residual water levels. By using strategies of grid searching, depths grid is orientated efficiently, and water levels is created. Then method is applied in correction and prediction of water levels. The experimental results show that the proposed method could be used to correct and predict water levels respectively. It is more accurate than existing methods both in correction and prediction of water levels.

关 键 词：余水位 潮汐场模型 水位改正 水位预报 

分 类 号：P229[天文地球—大地测量学与测量工程]