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Memorial University - Electronic Theses and Dissertations 4
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Document Description
TitleA model study of interannual and decadal variability of the arctic and sub-arctic oceans
AuthorLundrigan, Sarah Emily Mae.
DescriptionThesis (M.Sc.)--Memorial University of Newfoundland, 2010. Physics and Physical Oceanography
Paginationxii, 91 leaves : col. ill., maps
SubjectOcean circulation--Arctic Ocean--Computer simulation; Water masses--Arctic Ocean; Water masses--Atlantic Ocean
Degree GrantorMemorial University of Newfoundland. Dept. of Physics and Physical Oceanography
DisciplinePhysics and Physical Oceanography
NotesIncludes bibliographical references (leaves 83-91)
AbstractIn this work I investigate the interannual and decadal variability in the properties and the transformations of the Atlantic Water (AW) mass using an Ocean General Circulation Model. A course resolution tri-polar grid coupled ocean/sea ice model (NEMO-OPA/ NEMO-LIM) is forced with atmospheric parameters from NCEP/NCAR reanalysis. The quality of the model is assessed through comparison with observations. -- The model results show that there are in general two major processes that influenced the heat and salt balance of the Arctic and Sub-Arctic between 1985 and 2005. In the first decade of this period the volume flux of Atlantic Water into the Nordic Seas was not balanced by the outflow of Atlantic Water into the Arctic. This was a period of increase of the Atlantic Water volume and temperature in the Nordic Seas. Secondly, the Atlantic Water inflow into the Nordic Seas was warmer and saltier than normal between 1995 and 2005. These two processes caused a rise in the model temperature of the Arctic and Sub-Arctic similar to observed warming trend in these regions.
Resource TypeElectronic thesis or dissertation
FormatImage/jpeg; Application/pdf
SourcePaper copy kept in the Centre for Newfoundland Studies, Memorial University Libraries
Local Identifiera3475132
RightsThe author retains copyright ownership and moral rights in this thesis. Neither the thesis nor substantial extracts from it may be printed or otherwise reproduced without the author's permission.
CollectionElectronic Theses and Dissertations
Scanning StatusCompleted
PDF File(10.88 MB) --
CONTENTdm file name33914.cpd