Articles | Volume 17, issue 1
Ocean Sci., 17, 17–34, 2021
https://doi.org/10.5194/os-17-17-2021

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

Ocean Sci., 17, 17–34, 2021
https://doi.org/10.5194/os-17-17-2021

Research article 04 Jan 2021

Research article | 04 Jan 2021

Large-scale changes of the semidiurnal tide along North Atlantic coasts from 1846 to 2018

Lucia Pineau-Guillou et al.

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Latest update: 23 Oct 2021
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Short summary
We investigated the long-term changes of the principal tidal component M2 along North Atlantic coasts, from 1846 to 2018. We analysed 18 tide gauges. We found that M2 variations are consistent at all the stations in the North-East Atlantic, whereas some discrepancies appear in the North-West Atlantic. The similarity between the North Atlantic Oscillation and M2 variations in the North-East Atlantic suggests a possible influence of the large-scale atmospheric circulation on the tide.