Tidally driven dynamics in Bonne Bay, Newfoundland
Thesis (M.Sc.)--Memorial University of Newfoundland, 2008. Environmental Science Includes bibliographical references (leaves 80-86) A suite of observations from May 2006 to March 2007 is used to describe the vertical structure and temporal variations of currents and hydrography on the sill of East A...
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ftmemorialunivdc:oai:collections.mun.ca:theses4/170416 2023-05-15T17:23:34+02:00 Tidally driven dynamics in Bonne Bay, Newfoundland Peng, Wenjun. Canada--Newfoundland and Labrador--Bonne Bay Region; 2008 xi, 86 leaves : ill., maps (some col.) Image/jpeg; Application/pdf http://collections.mun.ca/cdm/ref/collection/theses4/id/170416 Eng eng Electronic Theses and Dissertations (10.06 MB) -- http://collections.mun.ca/PDFs/theses/Peng_Wenjun.pdf a2544153 http://collections.mun.ca/cdm/ref/collection/theses4/id/170416 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 Hydrography--Newfoundland and Labrador--Bonne Bay Ocean currents--Newfoundland and Labrador--Bonne Bay Tides--Newfoundland and Labrador--Bonne Bay Text Electronic thesis or dissertation 2008 ftmemorialunivdc 2015-08-06T19:22:43Z Thesis (M.Sc.)--Memorial University of Newfoundland, 2008. Environmental Science Includes bibliographical references (leaves 80-86) A suite of observations from May 2006 to March 2007 is used to describe the vertical structure and temporal variations of currents and hydrography on the sill of East Arm of Bonne Bay, Newfoundland. The instruments include a moored ADCP, multiple-frequency BioSonics echo-sounders, and a fixed hydrographic package with CTDs and an ECO fluorometer. These observations provide a detailed description of circulation at different timescales and reveals that the tide is the dominant forcing over the sill. The M2 tide is the most energetic tidal constituent and contributes roughly 70% of the total tidal kinetic energy. The M2 baroclinic tide is detected only in summer when stratification is strong. It has a wavelength of 7 km and has an energy that is about 20% of the barotropic kinetic energy. The subtidal current over the sill has a fortnightly modulation associated with spring-neap cycles between late September and November 2006, which indicates that deep-water renewal is not controlled by wind forcing but rather by changes in the horizontal stratification due to variations in tidal amplitudes. High-frequency internal waves with period of 80 minutes are identified in the data from ADCP and BioSonics echo-sounders in summer, 2006. They display asymmetry during tidal cycles: the wave structure only develops on the ebb tide, and the amplitude is 3 m and group velocity is 35 cm/s. It has about 1% of the barotropic kinetic energy. The high-frequency internal waves are generated near the side of the inner basin and propagate towards the outer area. Thesis Newfoundland studies University of Newfoundland Memorial University of Newfoundland: Digital Archives Initiative (DAI) Newfoundland Canada East Arm ENVELOPE(62.875,62.875,-67.600,-67.600) |
institution |
Open Polar |
collection |
Memorial University of Newfoundland: Digital Archives Initiative (DAI) |
op_collection_id |
ftmemorialunivdc |
language |
English |
topic |
Hydrography--Newfoundland and Labrador--Bonne Bay Ocean currents--Newfoundland and Labrador--Bonne Bay Tides--Newfoundland and Labrador--Bonne Bay |
spellingShingle |
Hydrography--Newfoundland and Labrador--Bonne Bay Ocean currents--Newfoundland and Labrador--Bonne Bay Tides--Newfoundland and Labrador--Bonne Bay Peng, Wenjun. Tidally driven dynamics in Bonne Bay, Newfoundland |
topic_facet |
Hydrography--Newfoundland and Labrador--Bonne Bay Ocean currents--Newfoundland and Labrador--Bonne Bay Tides--Newfoundland and Labrador--Bonne Bay |
description |
Thesis (M.Sc.)--Memorial University of Newfoundland, 2008. Environmental Science Includes bibliographical references (leaves 80-86) A suite of observations from May 2006 to March 2007 is used to describe the vertical structure and temporal variations of currents and hydrography on the sill of East Arm of Bonne Bay, Newfoundland. The instruments include a moored ADCP, multiple-frequency BioSonics echo-sounders, and a fixed hydrographic package with CTDs and an ECO fluorometer. These observations provide a detailed description of circulation at different timescales and reveals that the tide is the dominant forcing over the sill. The M2 tide is the most energetic tidal constituent and contributes roughly 70% of the total tidal kinetic energy. The M2 baroclinic tide is detected only in summer when stratification is strong. It has a wavelength of 7 km and has an energy that is about 20% of the barotropic kinetic energy. The subtidal current over the sill has a fortnightly modulation associated with spring-neap cycles between late September and November 2006, which indicates that deep-water renewal is not controlled by wind forcing but rather by changes in the horizontal stratification due to variations in tidal amplitudes. High-frequency internal waves with period of 80 minutes are identified in the data from ADCP and BioSonics echo-sounders in summer, 2006. They display asymmetry during tidal cycles: the wave structure only develops on the ebb tide, and the amplitude is 3 m and group velocity is 35 cm/s. It has about 1% of the barotropic kinetic energy. The high-frequency internal waves are generated near the side of the inner basin and propagate towards the outer area. |
format |
Thesis |
author |
Peng, Wenjun. |
author_facet |
Peng, Wenjun. |
author_sort |
Peng, Wenjun. |
title |
Tidally driven dynamics in Bonne Bay, Newfoundland |
title_short |
Tidally driven dynamics in Bonne Bay, Newfoundland |
title_full |
Tidally driven dynamics in Bonne Bay, Newfoundland |
title_fullStr |
Tidally driven dynamics in Bonne Bay, Newfoundland |
title_full_unstemmed |
Tidally driven dynamics in Bonne Bay, Newfoundland |
title_sort |
tidally driven dynamics in bonne bay, newfoundland |
publishDate |
2008 |
url |
http://collections.mun.ca/cdm/ref/collection/theses4/id/170416 |
op_coverage |
Canada--Newfoundland and Labrador--Bonne Bay Region; |
long_lat |
ENVELOPE(62.875,62.875,-67.600,-67.600) |
geographic |
Newfoundland Canada East Arm |
geographic_facet |
Newfoundland Canada East Arm |
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 (10.06 MB) -- http://collections.mun.ca/PDFs/theses/Peng_Wenjun.pdf a2544153 http://collections.mun.ca/cdm/ref/collection/theses4/id/170416 |
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_ |
1766113351175241728 |