Journal cover Journal topic
History of Geo- and Space Sciences An open-access journal
Hist. Geo Space. Sci., 8, 9-19, 2017
http://www.hist-geo-space-sci.net/8/9/2017/
doi:10.5194/hgss-8-9-2017
© Author(s) 2017. This work is distributed
under the Creative Commons Attribution 3.0 License.
Review article
27 Mar 2017
Manuel Johnson's tide record at St. Helena
David E. Cartwright et al.

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Short summary
This paper discusses an historical record of the ocean tide made by the astronomer Manuel Johnson (a future President of the Royal Astronomical Society) at St. Helena in 1826–27. It describes how the measurements were made using a tide gauge of an unusual design, which recorded the heights of the high and low tides well, although information on their times were not so accurate. Johnson’s work is not well known. One objective of the present research was to make his measurements more accessible.
This paper discusses an historical record of the ocean tide made by the astronomer Manuel...
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