最低天文潮面的精度研究

Analysis on the Accuracy of Lowest Astronomical Tide

基于最低天文潮面的定义和算法,以中国沿海14个主要长期验潮站多年的潮位观测资料为依据,分析了最低天文潮面在中国沿海海区的适用性。研究结果表明,在中国沿海,最低天文潮面能够达到厘米级的稳定性,适用于作为中国海区的海图深度基准面。

In this paper, based on the definition and arithmetic for the level of lowest astronomical tide, depended on perennial height of tide observations data collected from 14 long-term tide stations in China coastland, the applicability for lowest astronomical tide in China coastland is analyzed and evaluated. The research result shows that the accuracy of lowest astronomical tide in China coastland can achieve the centimeter level, in which is applicable for establishment of high precision chart datum in China.