Providing a Levelling Datum to a Tide Gauge Sea Level Record

Woodworth Philip L.

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Providing a Levelling Datum to a Tide Gauge Sea Level Record

机译：Providing a Levelling Datum to a Tide Gauge Sea Level Record

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摘要

A method is described for providing a levelling datum to a sea level record containing hourly heights (or similar) with the use of a second record from a nearby location consisting of high waters only but measured to a known datum. The method is tested using data from a pair of stations in the Thames estuary where there is a predominantly semidiurnal tide. It is then applied to the determination of a datum for an important historical sea level record at Liverpool. The historical background to that important record is explained. The limitations of the method are investigated using data from a pair of stations approximately 50 km apart on the north coast of Wales. This latter case study provides insight into which aspects of the tide contribute to inaccuracies in the method when the stations are some distance apart.

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来源
《Marine geodesy》 |2022年第1期|1-23|共23页
作者
Woodworth Philip L.;
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作者单位

Natl Oceanog Ctr, Joseph Proudman Bldg, Liverpool, Merseyside, England;

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原文格式 PDF
正文语种英语
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Datum determination; high water level variations; historical sea level change at Liverpool; ocean tidal constituents;

Providing a Levelling Datum to a Tide Gauge Sea Level Record

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