The forcing of mean sea level variability around Europe

Tsimplis, Michael N.; Shaw, Andrew G.P.. 2008 The forcing of mean sea level variability around Europe. Global and Planetary Change, 63 (2-3). 196-202. https://doi.org/10.1016/j.gloplacha.2007.08.018

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Official URL: http://dx.doi.org/10.1016/j.gloplacha.2007.08.018

Abstract/Summary

Mean sea level variability around the European coasts is explored on the basis of regional sea level indices derived through Empirical Orthogonal Function Analysis (EOF) of tidegauge records. The regional indices are cross-correlated amongst themselves and against the major regional and climatic indices. The analysis is done for the whole year as well as seasonally. The effect of coherent atmospheric pressure signals is explored by comparing the results of the analysis before and after the data are corrected for the atmospheric pressure effects. The North Atlantic Oscillation Index (NAO) and the Mediterranean Oscillation Index are the major regional indices which are found to be significantly correlated with sea level variability around Europe. Their correlation is positive for the Northern European coast and negative for the Mediterranean coasts. The NAO influence causes an anti-correlation between northern and southern European sea level. This is stronger in winter and weakens significantly or disappears completely during the summer. When the NAO influence was removed from the regional mean sea level indices the cross correlation between the various regions was reduced. However, residual spatial coherency indicated that probably there are other mechanisms causing spatial coherency. No statistically significant correlation with the Southern Oscillation Index (SOI) was found.

Item Type:	Publication - Article
Digital Object Identifier (DOI):	https://doi.org/10.1016/j.gloplacha.2007.08.018
ISSN:	0921-8181
Additional Keywords:	Mean Sea Level, cross correlation, Regional index, NAO, MOI, spatial coherency
Date made live:	13 Aug 2007 +0 (UTC)
URI:	https://nora.nerc.ac.uk/id/eprint/147943

Item Type:

Publication - Article

Digital Object Identifier (DOI):

https://doi.org/10.1016/j.gloplacha.2007.08.018

ISSN:

0921-8181

Additional Keywords:

Mean Sea Level, cross correlation, Regional index, NAO, MOI, spatial coherency

Date made live:

13 Aug 2007 +0 (UTC)

URI:

https://nora.nerc.ac.uk/id/eprint/147943