Inferred boundary mixing rates from density inversions in the St. Lawrence Estuary
Thesis (M.Sc.)--Memorial University of Newfoundland, 2010. Physics and Physical Oceanography Includes bibliographical references (leaves 60-65) When interfacial internal waves shoal over a sloped bottom, a fraction of the wave energy is reflected away while the rest is utilized by such processes as...
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ftmemorialunivdc:oai:collections.mun.ca:theses4/55984 2023-05-15T17:23:33+02:00 Inferred boundary mixing rates from density inversions in the St. Lawrence Estuary Sutherland, Graig, 1978- Memorial University of Newfoundland. Dept. of Physics and Physical Oceanography; Canada--Québec (Province)--Saint Lawrence River Estuary 2010 x, 65 leaves : col. ill., maps Image/jpeg; Application/pdf http://collections.mun.ca/cdm/ref/collection/theses4/id/55984 Eng eng Electronic Theses and Dissertations (7.52 MB) -- http://collections.mun.ca/PDFs/theses/Sutherland_Graig.pdf a3301981 http://collections.mun.ca/cdm/ref/collection/theses4/id/55984 The 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. Paper copy kept in the Centre for Newfoundland Studies, Memorial University Libraries Estuaries--Hydrodynamics--Québec (Province)--Saint Lawrence River Estuary Internal waves--Québec (Province)--Saint Lawrence River Estuary Text Electronic thesis or dissertation 2010 ftmemorialunivdc 2015-08-06T19:22:02Z Thesis (M.Sc.)--Memorial University of Newfoundland, 2010. Physics and Physical Oceanography Includes bibliographical references (leaves 60-65) When interfacial internal waves shoal over a sloped bottom, a fraction of the wave energy is reflected away while the rest is utilized by such processes as transport, dissipation, and mixing. In this thesis, I investigate the dissipation and mixing parameters inferred from CTD profiles in a region of high shoaling wave activity. This is done by looking at gravitationally unstable portions in the density profiles and sorting them into gravitationally stable ones. The RMS distance the water parcel must travel is referred to as the "Thorpe" scale and this can be used to infer the turbulent dissipation rate and the eddy diffusivity. This method is applied to five days of data, 28 June 2008 to 2 July 2008, obtained off the shore of Ile-aux-Lievres in the St. Lawrence Estuary. In this region, internal waves predominantly occur between 1 and 3 hours after the local low water during the flood tide. Therefore, the variability of the inferred turbulent and mixing parameters are investigated as a function of tidal phase to determine whether these are concurrent with the increase of shoaling internal waves. The dissipation and mixing parameters associated with a couple of the larger shoaling events are individually presented in higher detail. Thesis Newfoundland studies University of Newfoundland Memorial University of Newfoundland: Digital Archives Initiative (DAI) Canada Lawrence River ENVELOPE(-115.002,-115.002,58.384,58.384) |
institution |
Open Polar |
collection |
Memorial University of Newfoundland: Digital Archives Initiative (DAI) |
op_collection_id |
ftmemorialunivdc |
language |
English |
topic |
Estuaries--Hydrodynamics--Québec (Province)--Saint Lawrence River Estuary Internal waves--Québec (Province)--Saint Lawrence River Estuary |
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Estuaries--Hydrodynamics--Québec (Province)--Saint Lawrence River Estuary Internal waves--Québec (Province)--Saint Lawrence River Estuary Sutherland, Graig, 1978- Inferred boundary mixing rates from density inversions in the St. Lawrence Estuary |
topic_facet |
Estuaries--Hydrodynamics--Québec (Province)--Saint Lawrence River Estuary Internal waves--Québec (Province)--Saint Lawrence River Estuary |
description |
Thesis (M.Sc.)--Memorial University of Newfoundland, 2010. Physics and Physical Oceanography Includes bibliographical references (leaves 60-65) When interfacial internal waves shoal over a sloped bottom, a fraction of the wave energy is reflected away while the rest is utilized by such processes as transport, dissipation, and mixing. In this thesis, I investigate the dissipation and mixing parameters inferred from CTD profiles in a region of high shoaling wave activity. This is done by looking at gravitationally unstable portions in the density profiles and sorting them into gravitationally stable ones. The RMS distance the water parcel must travel is referred to as the "Thorpe" scale and this can be used to infer the turbulent dissipation rate and the eddy diffusivity. This method is applied to five days of data, 28 June 2008 to 2 July 2008, obtained off the shore of Ile-aux-Lievres in the St. Lawrence Estuary. In this region, internal waves predominantly occur between 1 and 3 hours after the local low water during the flood tide. Therefore, the variability of the inferred turbulent and mixing parameters are investigated as a function of tidal phase to determine whether these are concurrent with the increase of shoaling internal waves. The dissipation and mixing parameters associated with a couple of the larger shoaling events are individually presented in higher detail. |
author2 |
Memorial University of Newfoundland. Dept. of Physics and Physical Oceanography; |
format |
Thesis |
author |
Sutherland, Graig, 1978- |
author_facet |
Sutherland, Graig, 1978- |
author_sort |
Sutherland, Graig, 1978- |
title |
Inferred boundary mixing rates from density inversions in the St. Lawrence Estuary |
title_short |
Inferred boundary mixing rates from density inversions in the St. Lawrence Estuary |
title_full |
Inferred boundary mixing rates from density inversions in the St. Lawrence Estuary |
title_fullStr |
Inferred boundary mixing rates from density inversions in the St. Lawrence Estuary |
title_full_unstemmed |
Inferred boundary mixing rates from density inversions in the St. Lawrence Estuary |
title_sort |
inferred boundary mixing rates from density inversions in the st. lawrence estuary |
publishDate |
2010 |
url |
http://collections.mun.ca/cdm/ref/collection/theses4/id/55984 |
op_coverage |
Canada--Québec (Province)--Saint Lawrence River Estuary |
long_lat |
ENVELOPE(-115.002,-115.002,58.384,58.384) |
geographic |
Canada Lawrence River |
geographic_facet |
Canada Lawrence River |
genre |
Newfoundland studies University of Newfoundland |
genre_facet |
Newfoundland studies University of Newfoundland |
op_source |
Paper copy kept in the Centre for Newfoundland Studies, Memorial University Libraries |
op_relation |
Electronic Theses and Dissertations (7.52 MB) -- http://collections.mun.ca/PDFs/theses/Sutherland_Graig.pdf a3301981 http://collections.mun.ca/cdm/ref/collection/theses4/id/55984 |
op_rights |
The 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. |
_version_ |
1766113250807644160 |