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| 理论最低潮面定义和算法的应用问题分析 | |
| 引用本文： | 暴景阳,张明亮,唐岩,许军,齐珺,孙新轩.理论最低潮面定义和算法的应用问题分析[J].海洋测绘,2009,29(4):1-4. |
| 作者姓名： | 暴景阳 张明亮 唐岩 许军 齐珺 孙新轩 |
| 作者单位： | 1. 海军大连舰艇学院,海测工程系,辽宁,大连,116018;国家海洋局,第一海洋研究所,山东,青岛,266061 2. 海军海洋测绘研究所,天津,300061 3. 海军大连舰艇学院,海测工程系,辽宁,大连,116018 |
| 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。 |
| 关 键 词： | 理论最低潮面 深度基准面 最低天文潮面 平均海面 |
The Analysis of the Application of Definition and Algorithms of Lowest Normal Low Water |
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| BAO Jing-yang,ZHANG Ming-liang,TANG Yan,XU Jun,QI Jun,SUN Xin-xuan.The Analysis of the Application of Definition and Algorithms of Lowest Normal Low Water[J].Hydrographic Surveying and Charting,2009,29(4):1-4. | |
| Authors: | BAO Jing-yang ZHANG Ming-liang TANG Yan XU Jun QI Jun SUN Xin-xuan |
| Affiliation: | 1. Department of hydrography and Cartography, Dalian Naval Academy, Dalian, Liaoning, 116018; 2. First Institute of Oceanography, State Oceanic Administration, Qingdao,Shandong,266061 ; 3. Naval Institute of Hydrographic Surveying and Charting ,Tianjin,300061) |
| 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. |
| Keywords: | lowest normal low water depth datum lowest astronamical tide mean sea level |
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