Articles | Volume 16, issue 6
Ocean Sci., 16, 1337–1345, 2020
https://doi.org/10.5194/os-16-1337-2020

Special issue: Developments in the science and history of tides (OS/ACP/HGSS/NPG/SE...

Ocean Sci., 16, 1337–1345, 2020
https://doi.org/10.5194/os-16-1337-2020

Research article 09 Nov 2020

Research article | 09 Nov 2020

Bardsey – an island in a strong tidal stream: underestimating coastal tides due to unresolved topography

J. A. Mattias Green and David T. Pugh

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Status: closed
Status: closed
AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment
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Peer-review completion

AR: Author's response | RR: Referee report | ED: Editor decision
AR by Anna Wenzel on behalf of the Authors (27 Aug 2020)  Author's response
ED: Publish subject to minor revisions (review by editor) (03 Sep 2020) by Joanne Williams
AR by Mattias Green on behalf of the Authors (08 Sep 2020)  Author's response    Manuscript
ED: Publish as is (28 Sep 2020) by Joanne Williams
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Short summary
Bardsey Island lies 3 km offshore the western end of the Llŷn Peninsula in northwestern Wales. However, the island is too small to show up in tidal databases based on satellite data, and thus they may not provide the correct local tides. Our new sea level data shows that the tidal currents in the satellite databases are one-third of the observed currents. Any investigation of other coastal activities, e.g. renewable energy installations, must use local observations to get the correct tides.