临时验潮站深度基准面传递模型及其适用性研究

Research on Applicability To Transfer Model for Depth Datum Levels About Temporary Tide Station

长江口区域瞬时潮汐面受潮汐、径流、风暴潮的耦合作用,具有一定的区域特性。在阐述临时验潮站各种传递模型的基础上,考虑径流季节特性与潮汐特性,利用长期验潮站传递不同时间序列下深度基准面,探讨了各种传递模型在季节特性与潮汐特征组合条件下传递精度及其适用性,提出了长江口区域海图测绘深度基准面传递的优选方案,具有较强的实用性与可操作性。

Instantaneous tide which affected with tide,flow and storm tide takes on region character in estuary Yangtse River.Based on different transfer models,depth datum of the short-term tidal level data plotted with flow and tide is ascertained using of the long-term tidal level date.The precision and applicability of transfer models are discussed founding on the combination of flow and tide.A practicable and maneuverable scheme of transferring depth datum for mapping in Yangtse River is putted forward.