Earth System Science Data
Earth System Science Data
Earth System Science Data
Articles | Volume 14, issue 9
Articles | Volume 14, issue 9
https://doi.org/10.5194/essd-14-4387-2022
© Author(s) 2022. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/essd-14-4387-2022
© Author(s) 2022. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 14, issue 9
Data description article
 | 
26 Sep 2022
Data description article |  | 26 Sep 2022

Reanalyses of Maskelyne's tidal data at St. Helena in 1761

Philip L. Woodworth and John M. Vassie

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Latest update: 28 Apr 2026
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Short summary
An electronic data set of tidal measurements at St. Helena in 1761 by Nevil Maskelyne is described. These data were first analysed by Cartwright in papers on changing tides, but his data files were never archived. The now newly digitised Maskelyne data have been reanalysed in order to obtain an updated impression of whether the tide has changed at that location in over two and a half centuries. Our main conclusion is that the major tidal constituent (M2) has changed little.
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