THREE-DIMENSIONAL MODELLING OF LAKE ONTARIO HYDRODYNAMICS NEAR PORT HOPE AND IN THE UPPER ST LAWRENCE RIVER

The Ontario Clean Water Act (2006) mandated that eight and two municipal drinking water intakes in the Cataraqui Region Conservation Authority (CRCA) and the Ganaraska River Source Protection Agency (GRSPA) jurisdictions respectively, be protected from contaminants released into the surrounding wate...

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Main Author: Paturi, SHASTRI
Other Authors: Queen's University (Kingston, Ont.). Theses (Queen's University (Kingston, Ont.))
Language:en
en
Published: 2013
Subjects:
Online Access:http://hdl.handle.net/1974/8115
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spelling ndltd-LACETR-oai-collectionscanada.gc.ca-OKQ.1974-81152013-12-20T03:40:55ZTHREE-DIMENSIONAL MODELLING OF LAKE ONTARIO HYDRODYNAMICS NEAR PORT HOPE AND IN THE UPPER ST LAWRENCE RIVERPaturi, SHASTRIIntake Protection ZonesKingston BasinThree Dimensional HydrodynamicsNorth ShoreLake OntarioSpectral analysisThe Ontario Clean Water Act (2006) mandated that eight and two municipal drinking water intakes in the Cataraqui Region Conservation Authority (CRCA) and the Ganaraska River Source Protection Agency (GRSPA) jurisdictions respectively, be protected from contaminants released into the surrounding waters through the delineation of Intake Protection Zones (IPZs). Toward these objectives, the Estuary and Lake Computer Model (ELCOM) was applied to simulate the hydrodynamics and contaminant transport in the eastern Lake Ontario and upper St. Lawrence River. Model hydrodynamics were comprehensively validated against field data collected during April-October, 2006. The flow was found to be predominantly wind induced in the southwestern lacustrine portion of the domain and hydraulically driven in the northeastern riverine portion with storm events resulting in river flow reversals. The modeled surface currents were applied to delineate IPZs surrounding the drinking water intakes. Passive tracers were simulated as surrogates for combined sewer outflows, tributary flows, municipal/wastewater and industrial discharges identified by CRCA as threats to drinking water intakes. Wind was found to be the most dominant forcing to transport contaminants, both in the Kingston Basin and the St. Lawrence River, whereas the St. Lawrence River outflow was found to influence the transport of contaminants along the river. The hydrodynamics and contaminant transport in the near-shore region of Lake Ontario, from Port Hope to Cobourg was also simulated using ELCOM and the results were comprehensively validated against field data collected during April-September, 2010. Upwelling and downwelling events caused by south-westerly and north-easterly winds were found to be the predominant hydrodynamic process. These events generated barotropic geostrophic alongshore currents or ‘coastal jets’ of ~20 cm s-1. Discharges from river plumes and sewage treatment plants were simulated as tracer releases. The tracer concentrations were primarily influenced by the close proximity of the intakes to the effluent release points, the volume and direction of the discharge from the intakes and the physical processes driving the flow dynamics.Thesis (Ph.D, Civil Engineering) -- Queen's University, 2013-07-17 11:41:54.68Queen's University (Kingston, Ont.). Theses (Queen's University (Kingston, Ont.))2013-07-17 11:41:54.682013-07-18T21:14:45Z2013-07-18T21:14:45Z2013-07-18Thesishttp://hdl.handle.net/1974/8115enenCanadian thesesThis publication is made available by the authority of the copyright owner solely for the purpose of private study and research and may not be copied or reproduced except as permitted by the copyright laws without written authority from the copyright owner.
collection NDLTD
language en
en
sources NDLTD
topic Intake Protection Zones
Kingston Basin
Three Dimensional Hydrodynamics
North Shore
Lake Ontario
Spectral analysis
spellingShingle Intake Protection Zones
Kingston Basin
Three Dimensional Hydrodynamics
North Shore
Lake Ontario
Spectral analysis
Paturi, SHASTRI
THREE-DIMENSIONAL MODELLING OF LAKE ONTARIO HYDRODYNAMICS NEAR PORT HOPE AND IN THE UPPER ST LAWRENCE RIVER
description The Ontario Clean Water Act (2006) mandated that eight and two municipal drinking water intakes in the Cataraqui Region Conservation Authority (CRCA) and the Ganaraska River Source Protection Agency (GRSPA) jurisdictions respectively, be protected from contaminants released into the surrounding waters through the delineation of Intake Protection Zones (IPZs). Toward these objectives, the Estuary and Lake Computer Model (ELCOM) was applied to simulate the hydrodynamics and contaminant transport in the eastern Lake Ontario and upper St. Lawrence River. Model hydrodynamics were comprehensively validated against field data collected during April-October, 2006. The flow was found to be predominantly wind induced in the southwestern lacustrine portion of the domain and hydraulically driven in the northeastern riverine portion with storm events resulting in river flow reversals. The modeled surface currents were applied to delineate IPZs surrounding the drinking water intakes. Passive tracers were simulated as surrogates for combined sewer outflows, tributary flows, municipal/wastewater and industrial discharges identified by CRCA as threats to drinking water intakes. Wind was found to be the most dominant forcing to transport contaminants, both in the Kingston Basin and the St. Lawrence River, whereas the St. Lawrence River outflow was found to influence the transport of contaminants along the river. The hydrodynamics and contaminant transport in the near-shore region of Lake Ontario, from Port Hope to Cobourg was also simulated using ELCOM and the results were comprehensively validated against field data collected during April-September, 2010. Upwelling and downwelling events caused by south-westerly and north-easterly winds were found to be the predominant hydrodynamic process. These events generated barotropic geostrophic alongshore currents or ‘coastal jets’ of ~20 cm s-1. Discharges from river plumes and sewage treatment plants were simulated as tracer releases. The tracer concentrations were primarily influenced by the close proximity of the intakes to the effluent release points, the volume and direction of the discharge from the intakes and the physical processes driving the flow dynamics. === Thesis (Ph.D, Civil Engineering) -- Queen's University, 2013-07-17 11:41:54.68
author2 Queen's University (Kingston, Ont.). Theses (Queen's University (Kingston, Ont.))
author_facet Queen's University (Kingston, Ont.). Theses (Queen's University (Kingston, Ont.))
Paturi, SHASTRI
author Paturi, SHASTRI
author_sort Paturi, SHASTRI
title THREE-DIMENSIONAL MODELLING OF LAKE ONTARIO HYDRODYNAMICS NEAR PORT HOPE AND IN THE UPPER ST LAWRENCE RIVER
title_short THREE-DIMENSIONAL MODELLING OF LAKE ONTARIO HYDRODYNAMICS NEAR PORT HOPE AND IN THE UPPER ST LAWRENCE RIVER
title_full THREE-DIMENSIONAL MODELLING OF LAKE ONTARIO HYDRODYNAMICS NEAR PORT HOPE AND IN THE UPPER ST LAWRENCE RIVER
title_fullStr THREE-DIMENSIONAL MODELLING OF LAKE ONTARIO HYDRODYNAMICS NEAR PORT HOPE AND IN THE UPPER ST LAWRENCE RIVER
title_full_unstemmed THREE-DIMENSIONAL MODELLING OF LAKE ONTARIO HYDRODYNAMICS NEAR PORT HOPE AND IN THE UPPER ST LAWRENCE RIVER
title_sort three-dimensional modelling of lake ontario hydrodynamics near port hope and in the upper st lawrence river
publishDate 2013
url http://hdl.handle.net/1974/8115
work_keys_str_mv AT paturishastri threedimensionalmodellingoflakeontariohydrodynamicsnearporthopeandintheupperstlawrenceriver
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