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American Geophysical Union, Geophysical Research Letters, 20(43), p. 10,864-10,872, 2016

DOI: 10.1002/2016gl070750

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Closing the sea level budget on a regional scale: Trends and variability on the Northwestern European continental shelf: SEA LEVEL BUDGET ON EUROPEAN SHELF

Journal article published in 2016 by Thomas Frederikse, Riccardo Riva, Marcel Kleinherenbrink, Yoshihide Wada ORCID, Michiel van den Broeke, Ben Marzeion
This paper is made freely available by the publisher.
This paper is made freely available by the publisher.

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Abstract

Long‐term trends and decadal variability of sea level in the North Sea and along the Norwegian coast have been studied over the period 1958–2014. We model the spatially nonuniform sea level and solid earth response to large‐scale ice melt and terrestrial water storage changes. GPS observations, corrected for the solid earth deformation, are used to estimate vertical land motion. We find a clear correlation between sea level in the North Sea and along the Norwegian coast and open ocean steric variability in the Bay of Biscay and west of Portugal, which is consistent with the presence of wind‐driven coastally trapped waves. The observed nodal cycle is consistent with tidal equilibrium. We are able to explain the observed sea level trend over the period 1958–2014 well within the standard error of the sum of all contributing processes, as well as the large majority of the observed decadal sea level variability.