Fresh water forcing of the North Atlantic
Several numerical experiments are carried out using the Bryan-Cox Ocean General Circulation Model to investigate the variability of the North Atlantic thermohaline circulation under steady, non-zonal, surface forcing and realistic geometry. To this end the annual mean surface forcing fields were der...
Main Author: | |
---|---|
Format: | Thesis |
Language: | English |
Published: |
McGill University
1992
|
Subjects: | |
Online Access: | http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=56641 |
id |
ftcanadathes:oai:collectionscanada.gc.ca:QMM.56641 |
---|---|
record_format |
openpolar |
spelling |
ftcanadathes:oai:collectionscanada.gc.ca:QMM.56641 2023-05-15T14:57:15+02:00 Fresh water forcing of the North Atlantic Aura, Stella M. (Stella Marris) Master of Science (Department of Meteorology.) 1992 application/pdf http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=56641 en eng McGill University alephsysno: 001312749 proquestno: AAIMM80415 Theses scanned by UMI/ProQuest. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=56641 All items in eScholarship@McGill are protected by copyright with all rights reserved unless otherwise indicated. Physical Oceanography Physics Atmospheric Science Electronic Thesis or Dissertation 1992 ftcanadathes 2014-02-16T01:07:16Z Several numerical experiments are carried out using the Bryan-Cox Ocean General Circulation Model to investigate the variability of the North Atlantic thermohaline circulation under steady, non-zonal, surface forcing and realistic geometry. To this end the annual mean surface forcing fields were derived from the climatological data sets of Levitus (1982), Hellerman and Rosenstein (1983) and, Schmitt et al. (1989). Further, Arctic freshwater flux, an important part of the hydrological cycle within the North Atlantic Deep Water formation region, is taken into account. It is found that under present-day climatological surface forcing the system may oscillate at interdecadal period. The mechanism driving the oscillations is linked to changes in both the horizontal and vertical extent of convection in the northern "Labrador Sea". The structure of the surface freshwater flux forcing plays a major role in both the initiation and sustenance of the interdecadal oscillations. Allowing for a freshwater flux into the northern region of the "Labrador Sea" inhibits the interdecadal variability. The oscillations, however, appear, relatively insensitive to Arctic fresh water transport into the "Greenland Sea". A detailed three-dimensional discussion of the physics behind the interdecadal oscillations is presented. Thesis Arctic Greenland Greenland Sea Labrador Sea North Atlantic Deep Water North Atlantic North atlantic Thermohaline circulation Theses Canada/Thèses Canada (Library and Archives Canada) Arctic Greenland |
institution |
Open Polar |
collection |
Theses Canada/Thèses Canada (Library and Archives Canada) |
op_collection_id |
ftcanadathes |
language |
English |
topic |
Physical Oceanography Physics Atmospheric Science |
spellingShingle |
Physical Oceanography Physics Atmospheric Science Aura, Stella M. (Stella Marris) Fresh water forcing of the North Atlantic |
topic_facet |
Physical Oceanography Physics Atmospheric Science |
description |
Several numerical experiments are carried out using the Bryan-Cox Ocean General Circulation Model to investigate the variability of the North Atlantic thermohaline circulation under steady, non-zonal, surface forcing and realistic geometry. To this end the annual mean surface forcing fields were derived from the climatological data sets of Levitus (1982), Hellerman and Rosenstein (1983) and, Schmitt et al. (1989). Further, Arctic freshwater flux, an important part of the hydrological cycle within the North Atlantic Deep Water formation region, is taken into account. It is found that under present-day climatological surface forcing the system may oscillate at interdecadal period. The mechanism driving the oscillations is linked to changes in both the horizontal and vertical extent of convection in the northern "Labrador Sea". The structure of the surface freshwater flux forcing plays a major role in both the initiation and sustenance of the interdecadal oscillations. Allowing for a freshwater flux into the northern region of the "Labrador Sea" inhibits the interdecadal variability. The oscillations, however, appear, relatively insensitive to Arctic fresh water transport into the "Greenland Sea". A detailed three-dimensional discussion of the physics behind the interdecadal oscillations is presented. |
format |
Thesis |
author |
Aura, Stella M. (Stella Marris) |
author_facet |
Aura, Stella M. (Stella Marris) |
author_sort |
Aura, Stella M. (Stella Marris) |
title |
Fresh water forcing of the North Atlantic |
title_short |
Fresh water forcing of the North Atlantic |
title_full |
Fresh water forcing of the North Atlantic |
title_fullStr |
Fresh water forcing of the North Atlantic |
title_full_unstemmed |
Fresh water forcing of the North Atlantic |
title_sort |
fresh water forcing of the north atlantic |
publisher |
McGill University |
publishDate |
1992 |
url |
http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=56641 |
op_coverage |
Master of Science (Department of Meteorology.) |
geographic |
Arctic Greenland |
geographic_facet |
Arctic Greenland |
genre |
Arctic Greenland Greenland Sea Labrador Sea North Atlantic Deep Water North Atlantic North atlantic Thermohaline circulation |
genre_facet |
Arctic Greenland Greenland Sea Labrador Sea North Atlantic Deep Water North Atlantic North atlantic Thermohaline circulation |
op_relation |
alephsysno: 001312749 proquestno: AAIMM80415 Theses scanned by UMI/ProQuest. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=56641 |
op_rights |
All items in eScholarship@McGill are protected by copyright with all rights reserved unless otherwise indicated. |
_version_ |
1766329333226405888 |