【作者】 暴景阳； 唐岩； 许军； 齐珺； 孙新轩；

【Author】 Bao Jing-yang1,2 Tang Yan1 Xu Jun1 Qi Jun 1 Sun Xin-xuan1 (1. Department of hydrography and Cartography,Dalian Naval Academy,Dalian,Liaoning, 116018 2. First Institute of Oceanography, State Oceanic Administration, Qingdao 266061,China)

【机构】 海军大连舰艇学院； 国家海洋局第一海洋研究所；

【摘要】 分析了理论最低潮面定义的可能最低潮面含义,研究了定义实现算法的差异,发现了长周期分潮改正公式的错误。验潮站深度基准面的重新计算结果与采用值比较表明,在多数验潮站二者存在明显差别。指出在数字化海洋空间信息构建过程中,重新确定各站意义一致的深度基准面具有必要性。更多还原

【Abstract】 In this paper, the meaning of the Lowest normal low water(LNLW) is analyzed. The differences existed in the algorithms for calculating the LNLM is researched. It is discovered that, some mistakes consist in the original formula about the corrections from long term period tide. The statistics from the comparisons between the derived datum from harmonic constants and from tidal gauge records shows great differences. In present, for the construction of digital hydrographic spatial information, it is necessary to reconstruct the vertical chart datum system for coherence.更多还原