The signature of the Atlantic meridional overturning circulation in sea level along the east coast of North America
In this letter we examine the relationship between the North Atlantic Meridional Overturning Circulation (MOC) and sea level (SL) along the east coast of North America. In the eddy permitting ocean model OCCAM we find a distinctive, topography-following pattern of SL variability in the western North...
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American Geophysical Union
2009
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ftnerc:oai:nora.nerc.ac.uk:7473 2023-05-15T17:30:24+02:00 The signature of the Atlantic meridional overturning circulation in sea level along the east coast of North America Bingham, Rory J. Hughes, Chris W. 2009-01-20 text http://nora.nerc.ac.uk/id/eprint/7473/ https://nora.nerc.ac.uk/id/eprint/7473/1/MOC_Tide_gauges_in_press.pdf http://www.agu.org/pubs/crossref/2009/2008GL036215.shtml en eng American Geophysical Union https://nora.nerc.ac.uk/id/eprint/7473/1/MOC_Tide_gauges_in_press.pdf Bingham, Rory J.; Hughes, Chris W. orcid:0000-0002-9355-0233 . 2009 The signature of the Atlantic meridional overturning circulation in sea level along the east coast of North America. Geophysical Research Letters, 36. L02603. https://doi.org/10.1029/2008GL036215 <https://doi.org/10.1029/2008GL036215> Marine Sciences Meteorology and Climatology Publication - Article PeerReviewed 2009 ftnerc https://doi.org/10.1029/2008GL036215 2023-02-04T19:24:58Z In this letter we examine the relationship between the North Atlantic Meridional Overturning Circulation (MOC) and sea level (SL) along the east coast of North America. In the eddy permitting ocean model OCCAM we find a distinctive, topography-following pattern of SL variability in the western North Atlantic that is closely linked with the changing strength of the MOC, with a 2 cm drop in SL along the US east coast corresponding to a 1Sv increase in the MOC. We find a similar pattern of SL variability in the altimetry record and show that this meridionally coherent SL mode dominates interannual SL variability at tide gauges along the North American east coast between 40–50N. Hence we conclude that North American coastal sea-level may indeed be a useful indicator of MOC variability on interannual timescales, allowing an observationally-based estimate of the likely range of interannual MOC fluctuations to be determined. Citation: Bingham, R. J., and C. W. Hughes (2009), Signature of the Atlantic meridional overturning circulation in sea level along the east coast of North America, Geophys. Res. Lett., 36, L02603, doi:10.1029/2008GL036215. Article in Journal/Newspaper North Atlantic Natural Environment Research Council: NERC Open Research Archive Bingham ENVELOPE(-63.400,-63.400,-69.400,-69.400) Geophysical Research Letters 36 2 n/a n/a |
institution |
Open Polar |
collection |
Natural Environment Research Council: NERC Open Research Archive |
op_collection_id |
ftnerc |
language |
English |
topic |
Marine Sciences Meteorology and Climatology |
spellingShingle |
Marine Sciences Meteorology and Climatology Bingham, Rory J. Hughes, Chris W. The signature of the Atlantic meridional overturning circulation in sea level along the east coast of North America |
topic_facet |
Marine Sciences Meteorology and Climatology |
description |
In this letter we examine the relationship between the North Atlantic Meridional Overturning Circulation (MOC) and sea level (SL) along the east coast of North America. In the eddy permitting ocean model OCCAM we find a distinctive, topography-following pattern of SL variability in the western North Atlantic that is closely linked with the changing strength of the MOC, with a 2 cm drop in SL along the US east coast corresponding to a 1Sv increase in the MOC. We find a similar pattern of SL variability in the altimetry record and show that this meridionally coherent SL mode dominates interannual SL variability at tide gauges along the North American east coast between 40–50N. Hence we conclude that North American coastal sea-level may indeed be a useful indicator of MOC variability on interannual timescales, allowing an observationally-based estimate of the likely range of interannual MOC fluctuations to be determined. Citation: Bingham, R. J., and C. W. Hughes (2009), Signature of the Atlantic meridional overturning circulation in sea level along the east coast of North America, Geophys. Res. Lett., 36, L02603, doi:10.1029/2008GL036215. |
format |
Article in Journal/Newspaper |
author |
Bingham, Rory J. Hughes, Chris W. |
author_facet |
Bingham, Rory J. Hughes, Chris W. |
author_sort |
Bingham, Rory J. |
title |
The signature of the Atlantic meridional overturning circulation in sea level along the east coast of North America |
title_short |
The signature of the Atlantic meridional overturning circulation in sea level along the east coast of North America |
title_full |
The signature of the Atlantic meridional overturning circulation in sea level along the east coast of North America |
title_fullStr |
The signature of the Atlantic meridional overturning circulation in sea level along the east coast of North America |
title_full_unstemmed |
The signature of the Atlantic meridional overturning circulation in sea level along the east coast of North America |
title_sort |
signature of the atlantic meridional overturning circulation in sea level along the east coast of north america |
publisher |
American Geophysical Union |
publishDate |
2009 |
url |
http://nora.nerc.ac.uk/id/eprint/7473/ https://nora.nerc.ac.uk/id/eprint/7473/1/MOC_Tide_gauges_in_press.pdf http://www.agu.org/pubs/crossref/2009/2008GL036215.shtml |
long_lat |
ENVELOPE(-63.400,-63.400,-69.400,-69.400) |
geographic |
Bingham |
geographic_facet |
Bingham |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_relation |
https://nora.nerc.ac.uk/id/eprint/7473/1/MOC_Tide_gauges_in_press.pdf Bingham, Rory J.; Hughes, Chris W. orcid:0000-0002-9355-0233 . 2009 The signature of the Atlantic meridional overturning circulation in sea level along the east coast of North America. Geophysical Research Letters, 36. L02603. https://doi.org/10.1029/2008GL036215 <https://doi.org/10.1029/2008GL036215> |
op_doi |
https://doi.org/10.1029/2008GL036215 |
container_title |
Geophysical Research Letters |
container_volume |
36 |
container_issue |
2 |
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n/a |
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n/a |
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1766126792939143168 |