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Forcing of coastal sea level rise patterns in the North Atlantic and the Mediterranean Sea

Forcing of coastal sea level rise patterns in the North Atlantic and the Mediterranean Sea
Forcing of coastal sea level rise patterns in the North Atlantic and the Mediterranean Sea
Sea level trends derived from North Atlantic and the Mediterranean Sea tide gauges have been re-evaluated with a common reference period (1960–2000) and with the atmospheric component of the observed sea level variability quantified and removed by means of regional barotropic ocean models forced by wind and atmospheric pressure. The atmospherically forced trends are important and have values of ?0.2 ± 0.1 mm/yr in the North Atlantic (west coast), ?0.2 ± 0.2 mm/yr in the NE Atlantic, 0.3 ± 0.4 mm/yr in North Sea and ?0.7 ± 0.1 mm/yr in the Mediterranean. The residual sea level trends corrected for post-glacial rebound processes are 0.9 ± 0.4 mm/yr in the Mediterranean, 1.1 ± 0.6 mm/yr in the NW Atlantic, 1.3 ± 1.0 mm/yr in the NE Atlantic and 1.3 ± 0.8 mm/yr in the North Sea. Atmospheric forcing is partly responsible for the observed patterns of sea level rise and for part of the observed sea level acceleration during the 1990s. The residual trends have further been corrected for the influence of the steric effects. In the Mediterranean removing the steric component increases the trends by 40% and makes them consistent with the Atlantic trends. The remaining sea level rise rates are due to mass addition and their spatial pattern in the region can be related to Greenland ice-melting rates.
sea level, sea level forcing, ice melting
0094-8276
L18604
Marcos, M.
3cd7a6cd-def3-47a9-a7c4-7ef305fc0bf1
Tsimplis, M.N.
df6dd749-cda4-46ec-983c-bf022d737031
Marcos, M.
3cd7a6cd-def3-47a9-a7c4-7ef305fc0bf1
Tsimplis, M.N.
df6dd749-cda4-46ec-983c-bf022d737031

Marcos, M. and Tsimplis, M.N. (2007) Forcing of coastal sea level rise patterns in the North Atlantic and the Mediterranean Sea. Geophysical Research Letters, 34 (18), L18604. (doi:10.1029/2007GL030641).

Record type: Article

Abstract

Sea level trends derived from North Atlantic and the Mediterranean Sea tide gauges have been re-evaluated with a common reference period (1960–2000) and with the atmospheric component of the observed sea level variability quantified and removed by means of regional barotropic ocean models forced by wind and atmospheric pressure. The atmospherically forced trends are important and have values of ?0.2 ± 0.1 mm/yr in the North Atlantic (west coast), ?0.2 ± 0.2 mm/yr in the NE Atlantic, 0.3 ± 0.4 mm/yr in North Sea and ?0.7 ± 0.1 mm/yr in the Mediterranean. The residual sea level trends corrected for post-glacial rebound processes are 0.9 ± 0.4 mm/yr in the Mediterranean, 1.1 ± 0.6 mm/yr in the NW Atlantic, 1.3 ± 1.0 mm/yr in the NE Atlantic and 1.3 ± 0.8 mm/yr in the North Sea. Atmospheric forcing is partly responsible for the observed patterns of sea level rise and for part of the observed sea level acceleration during the 1990s. The residual trends have further been corrected for the influence of the steric effects. In the Mediterranean removing the steric component increases the trends by 40% and makes them consistent with the Atlantic trends. The remaining sea level rise rates are due to mass addition and their spatial pattern in the region can be related to Greenland ice-melting rates.

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More information

Published date: 28 September 2007
Keywords: sea level, sea level forcing, ice melting
Organisations: National Oceanography Centre,Southampton

Identifiers

Local EPrints ID: 49705
URI: http://eprints.soton.ac.uk/id/eprint/49705
ISSN: 0094-8276
PURE UUID: b9e4542b-dc71-4d40-b85c-656c6336e06a

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Date deposited: 23 Nov 2007
Last modified: 15 Mar 2024 09:58

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Contributors

Author: M. Marcos
Author: M.N. Tsimplis

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