Localization of abrupt change in the north Atlantic thermohaline circulation, Geophys
[1] Recent climate model experiments, as well as paleoclimate records, suggest that the meridional overturning circulation or ‘‘thermohaline circulation’ ’ in the Atlantic Ocean could change abruptly as a result of global warming, and that this could have a significant impact on European climate. We...
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ftciteseerx:oai:CiteSeerX.psu:10.1.1.493.5068 2023-05-15T16:29:05+02:00 Localization of abrupt change in the north Atlantic thermohaline circulation, Geophys Helen L. Johnson David P. Marshall The Pennsylvania State University CiteSeerX Archives application/pdf http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.493.5068 http://www.earth.ox.ac.uk/~helenj/work/publications/abrupt.pdf en eng http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.493.5068 http://www.earth.ox.ac.uk/~helenj/work/publications/abrupt.pdf Metadata may be used without restrictions as long as the oai identifier remains attached to it. http://www.earth.ox.ac.uk/~helenj/work/publications/abrupt.pdf Region Atlantic Ocean 1635 Global Change Oceans (4203 4203 Oceanography text ftciteseerx 2020-10-04T00:15:57Z [1] Recent climate model experiments, as well as paleoclimate records, suggest that the meridional overturning circulation or ‘‘thermohaline circulation’ ’ in the Atlantic Ocean could change abruptly as a result of global warming, and that this could have a significant impact on European climate. We use a reduced-gravity model to investigate the response of the Atlantic overturning circulation to changes in forcing. We find that variability at decadal and higher frequencies is confined to a single hemisphere. This implies that (a) overturning variability resulting from high frequency changes in buoyancy forcing in the Labrador and Greenland Seas will be limited to the North Atlantic, and (b) any observed decadal and higher frequency fluctuations in North Atlantic overturning can only result from changes in the surface fluxes within the North Atlantic basin itself. These results suggest that Southern Ocean wind forcing is not important for North Atlantic overturning on decadal and shorter timescales. INDEX Text Greenland North Atlantic North atlantic Thermohaline circulation Southern Ocean Unknown Greenland Southern Ocean |
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Open Polar |
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Unknown |
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ftciteseerx |
language |
English |
topic |
Region Atlantic Ocean 1635 Global Change Oceans (4203 4203 Oceanography |
spellingShingle |
Region Atlantic Ocean 1635 Global Change Oceans (4203 4203 Oceanography Helen L. Johnson David P. Marshall Localization of abrupt change in the north Atlantic thermohaline circulation, Geophys |
topic_facet |
Region Atlantic Ocean 1635 Global Change Oceans (4203 4203 Oceanography |
description |
[1] Recent climate model experiments, as well as paleoclimate records, suggest that the meridional overturning circulation or ‘‘thermohaline circulation’ ’ in the Atlantic Ocean could change abruptly as a result of global warming, and that this could have a significant impact on European climate. We use a reduced-gravity model to investigate the response of the Atlantic overturning circulation to changes in forcing. We find that variability at decadal and higher frequencies is confined to a single hemisphere. This implies that (a) overturning variability resulting from high frequency changes in buoyancy forcing in the Labrador and Greenland Seas will be limited to the North Atlantic, and (b) any observed decadal and higher frequency fluctuations in North Atlantic overturning can only result from changes in the surface fluxes within the North Atlantic basin itself. These results suggest that Southern Ocean wind forcing is not important for North Atlantic overturning on decadal and shorter timescales. INDEX |
author2 |
The Pennsylvania State University CiteSeerX Archives |
format |
Text |
author |
Helen L. Johnson David P. Marshall |
author_facet |
Helen L. Johnson David P. Marshall |
author_sort |
Helen L. Johnson |
title |
Localization of abrupt change in the north Atlantic thermohaline circulation, Geophys |
title_short |
Localization of abrupt change in the north Atlantic thermohaline circulation, Geophys |
title_full |
Localization of abrupt change in the north Atlantic thermohaline circulation, Geophys |
title_fullStr |
Localization of abrupt change in the north Atlantic thermohaline circulation, Geophys |
title_full_unstemmed |
Localization of abrupt change in the north Atlantic thermohaline circulation, Geophys |
title_sort |
localization of abrupt change in the north atlantic thermohaline circulation, geophys |
url |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.493.5068 http://www.earth.ox.ac.uk/~helenj/work/publications/abrupt.pdf |
geographic |
Greenland Southern Ocean |
geographic_facet |
Greenland Southern Ocean |
genre |
Greenland North Atlantic North atlantic Thermohaline circulation Southern Ocean |
genre_facet |
Greenland North Atlantic North atlantic Thermohaline circulation Southern Ocean |
op_source |
http://www.earth.ox.ac.uk/~helenj/work/publications/abrupt.pdf |
op_relation |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.493.5068 http://www.earth.ox.ac.uk/~helenj/work/publications/abrupt.pdf |
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Metadata may be used without restrictions as long as the oai identifier remains attached to it. |
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1766018768856678400 |