| 黄河水下三角洲前沿深度基准面及潮位变化分析研究 |
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| 引用本文： | 刘建立,仲德林.黄河水下三角洲前沿深度基准面及潮位变化分析研究[J].海岸工程,2005,24(3):14-18. |
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| 作者姓名： | 刘建立 仲德林 |
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| 作者单位： | 国家海洋局,第一海洋研究所,山东,青岛,266061;国家海洋局,第一海洋研究所,山东,青岛,266061 |
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| 摘 要： | 黄河三角洲前沿的陆地由于受地面沉降的影响,使地面高程不断发生变化.在水深测量中,深度基准面是根据陆地水准点高程确定的,陆地水准点高程的变化影响深度基准面的确定,从而影响水深测量的准确性.又由于黄河海港附近有一无潮点,其附近的潮汐性质变化大,在黄河三角洲前沿大范围水深测量中,根据测区潮位变化设立足够的验潮站及统一各个验潮站的水尺零点到同一个深度基准面上,是保证水深测量结果可靠的关键.通过黄河三角洲前沿陆地高程的变化和验潮获得的资料,介绍了黄河三角洲前沿深度基准面的变化和潮位变化情况.
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| 关 键 词： | 深度基准面 潮位变化 水深测量 |
| 文章编号： | 1002-3682（2005）03-0014-05 |
| 收稿时间： | 2005-06-30 |
| 修稿时间： | 2005年6月30日 |
Analysis and Study of Variations in Depth Datum and Tidal Level in the Yellow River Submerged Delta Foreland Area |
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| LIU Jian-li,ZHONG De-lin.Analysis and Study of Variations in Depth Datum and Tidal Level in the Yellow River Submerged Delta Foreland Area[J].Coastal Engineering,2005,24(3):14-18. |
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| Authors: | LIU Jian-li ZHONG De-lin |
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| Abstract: | The surface subsidence in the Yellow River delta foreland area brings changes to the land surface height there, and the depth datum in the bathymetric survey is determined on the basis of the level of land bench mark, so the changes in the level of land bench mark will affect the determination of depth datum and the accuracy of bathymetric survey. In addition, the tidal characteristics near the Yellow River harbour change greatly because of an amphidromic point in its neighbourhood, so in a large-scale bathymetric survey in the sea area, sufficient tidal stations shall be set up and the zeroes of gauge at different tidal stations shall be reduced to the same depth datum to assure the reliability of the bathymetric survey results. In this paper, the observed land surface height data and tidal data in the Yellow River delta foreland area are used to describe the variations in depth datum and tidal level in the area. |
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| Keywords: | depth datum variations in tidal level bathymetric survey |
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