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The effect of Mediterranean exchange flow on European time mean sea level

Hughes, Chris W. ORCID: https://orcid.org/0000-0002-9355-0233; Bingham, Rory J.; Roussenov, Vassil; Williams, Joanne ORCID: https://orcid.org/0000-0002-8421-4481; Woodworth, Philip L.. 2015 The effect of Mediterranean exchange flow on European time mean sea level. Geophysical Research Letters, 42 (2). 466-474. https://doi.org/10.1002/2014GL062654

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Abstract/Summary

Using a suite of ocean model simulations and a set of dedicated twin experiments, we show that the exchange flow between the Mediterranean and the North Atlantic leads to a drop in time mean European coastal sea level along the Atlantic coast north of Gibraltar. The drop is about 7 cm along the Portuguese coast and remains apparent (though reduced) as far north as the Norwegian coast. We also show that Mediterranean time and spatial mean sea level is about 9 cm lower than it would be without the exchange flow (but assuming a small supply from the Atlantic to balance evaporation). Each of these relationships makes possible an estimate of the magnitude of the exchange flow based on sea level measurements, and estimates of 0.8 and 0.91 sverdrups are made consistent with previous determinations based mainly on current measurements in the Strait of Gibraltar.

Item Type: Publication - Article
Digital Object Identifier (DOI): https://doi.org/10.1002/2014GL062654
ISSN: 00948276
Additional Keywords: sea level; Mediterranean; Europe; exchange flow
Date made live: 28 Jan 2015 10:05 +0 (UTC)
URI: https://nora.nerc.ac.uk/id/eprint/509520

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