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首页> 外文期刊>The Hydrographic journal >AN ASSESSMENT OF THE ACCURACY OF THREE TIDAL DATUM TRANSFER PROCEDURES IN A HARBOUR ENVIRONMENT
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AN ASSESSMENT OF THE ACCURACY OF THREE TIDAL DATUM TRANSFER PROCEDURES IN A HARBOUR ENVIRONMENT

机译：港口环境中三种潮汐基准传输过程的准确性评估

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摘要

This paper describes a case study in the Otago Harbour in which two years of data collected at the Dunedin Wharf and Port Chalmers tide gauges was used to test the performance of three tidal datum transfer methods, namely the range ratio method, the height difference method and the time difference method (both in a modified and an unmodified form). These gauges, which are separated by a distance of approximately 13km, are also linked by precise levelling techniques. It was found that the range ratio method showed the highest accuracy over shorter observation periods (i.e. seven days or less), with the height difference method showing comparable accuracy when using four weeks of data. While the traditional time difference method produced by far the poorest results, when used in a modified form it was found to produce results approaching the accuracy of those obtained by the other two methods.
机译：本文介绍了一个奥塔哥港口的案例研究，其中使用了但尼丁码头和查尔默斯港潮汐仪收集的两年数据来测试三种潮汐基准传输方法的性能，即距离比方法，高度差方法和时差方法（修改后的形式和未修改的形式）。这些仪表相距约13公里，它们也通过精确的找平技术进行链接。已经发现，范围比法在较短的观察期内（即7天或更短）显示出最高的准确度，而高度差法在使用4周的数据时显示出可比的准确度。尽管传统的时差方法产生的结果最差，但是当以修改形式使用时，发现产生的结果接近通过其他两种方法获得的结果。

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