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Dissertations / Theses on the topic 'Lake hydrodynamics'

Author: Grafiati

Published: 4 June 2021

Last updated: 31 July 2025

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1

Schimmelpfennig, Sebastian. "Lake Tegel: hydrodynamics, pharmaceutical micro-pollutants and management strategies." Doctoral thesis, Humboldt-Universität zu Berlin, Mathematisch-Naturwissenschaftliche Fakultät, 2015. http://dx.doi.org/10.18452/17392.

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Ziele dieser Dissertation sind die Aufklärung der Strömungsverhältnisse und Untersuchungen zum Verhalten von Arzneimittelrückständen im Tegeler See, die Entwicklung eines Simulationsmodells für Szenarioberechnungen sowie die Ableitung neuer Bewirtschaftungskonzepte unter Zuhilfenahme der gewonnenen Erkenntnisse und Modellergebnisse. Das zweidimensionale Strömungsmodell 2D-POM kann die Mischungsverhältnisse der beiden Zuflüsse zum Tegeler See, insbesondere den Einstrom der Oberhavel, ausreichend genau abbilden. Der Oberhaveleinstrom ist sowohl windinduziert als auch vom Abfluss der Oberhavel ab

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2

PAUL, MALEMBEKA FREDERICK. "FUNDAMENTAL CHARACTERISTICS OF THERMAL CONVECTION UNDER THE CONDITION OF COOLING PERIOD IN THE NORTHERN PART OF LAKE BIWA." 京都大学 (Kyoto University), 2011. http://hdl.handle.net/2433/151956.

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3

Huber, Anita. "Internal mixing in a mine lake." University of Western Australia. School of Environmental Systems Engineering, 2007. http://theses.library.uwa.edu.au/adt-WU2007.0103.

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[Truncated abstract] Mine lakes are a water body created after an open-cut mine ceases operating. The lakes develop in the former mine-pit due to the combination of groundwater inflow, surface run-off and, in some cases, due to rapid filling from river diversion. While potentially valuable water resources, these lakes often have poor water quality and managing the water body is an important part of the overall process of mine site rehabilitation. As mine lakes form in man-made pits, they have a bathymetry that is typically quite distinct from natural lakes and this can, in turn, strongly influ

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4

Huber, Anita. "Internal mixing in a mine lake /." Connect to this title, 2006. http://theses.library.uwa.edu.au/adt-WU2007.0103.

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5

Shimizu, Kenji. "Application of modal analysis to strongly stratified lakes." University of Western Australia. Faculty of Engineering, Computing and Mathematics, 2009. http://theses.library.uwa.edu.au/adt-WU2009.0079.

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Modal analysis for strongly stratified lakes was extended to obtain a better understanding of the dynamics of the basin-scale motions. By viewing the basin-scale motions as a superposition of modes, that have distinct periods and three-dimensional structures, the method provides a conceptual understanding for the excitation, evolution, and damping of the basin-scale motions. Once the motion has been decomposed into modes, their evolution and energetics may be extracted from hydrodynamic simulation results and field data. The method was applied to Lake Biwa, Japan, and Lake Kinneret, Israel, an

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6

Amini, Sina. "Hydrodynamics and Salinity of Pontchartrain Estuary During Hurricanes." ScholarWorks@UNO, 2014. http://scholarworks.uno.edu/td/1845.

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A hurricane is a combination of sustained winds, low atmospheric pressures and precipitation. Over the past decades, Louisiana has experienced several devastating hurricanes. The east bank of the City of New Orleans is bounded by Lake Pontchartrain to the North and the Mississippi River to the South. Lake Pontchartrain is a brackish system connected to the Gulf of Mexico through Lake Borgne to the East. As a Hurricane enters the Estuary from the Gulf of Mexico, it imposes a sustained surge of a few meters which may lead to flooding in areas which are not protected by levees. These flood water

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7

Hueston, Anne E. "Hydrodynamics of an isothermal lake, L. Neagh : with particular reference to the effect of waves." Thesis, University of Ulster, 1993. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.242045.

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8

GUO, YONG. "Modeling Hydrodynamics and Sediment Transport at a River-Coastal Confluence." The Ohio State University, 2002. http://rave.ohiolink.edu/etdc/view?acc_num=osu1039036259.

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9

López, Moreira Mazacotte Gregorio Alejandro. "Ecological Modelling of Lake Ecosystems: Integrating hydro-thermodynamics and biogeochemistry in a reduced complexity framework." Doctoral thesis, Università degli studi di Trento, 2019. http://hdl.handle.net/11572/252545.

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Freshwater lakes are among the most important ecosystems for both human and other biological communities. They account for about 87% of surface freshwater in the planet, thus constituting a major source of drinking water. They also provide a wide range of ecosystem services that go from the sustenance of a rich biodiversity to the regulation of hydrological extremes; from the provision of a means for recreation to the support of local economies, e.g., through tourism and fisheries, just to cite a few. Lakes are now also widely recognised as natural early warning systems, their responses potent

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10

López, Moreira Mazacotte Gregorio Alejandro. "Ecological Modelling of Lake Ecosystems: Integrating hydro-thermodynamics and biogeochemistry in a reduced complexity framework." Doctoral thesis, Università degli studi di Trento, 2019. http://hdl.handle.net/11572/252545.

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Freshwater lakes are among the most important ecosystems for both human and other biological communities. They account for about 87% of surface freshwater in the planet, thus constituting a major source of drinking water. They also provide a wide range of ecosystem services that go from the sustenance of a rich biodiversity to the regulation of hydrological extremes; from the provision of a means for recreation to the support of local economies, e.g., through tourism and fisheries, just to cite a few. Lakes are now also widely recognised as natural early warning systems, their responses potent

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11

SANTO, MARCO ANTONIO. "Large-eddy simulation of wind-driven circulation in a peri-alpine lake: implications of complex surrounding orography and thermal stratification on hydrodynamics of Lake Ledro." Doctoral thesis, Università degli Studi di Trieste, 2017. http://hdl.handle.net/11368/2908202.

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In the present thesis I investigate the wind-driven circulation and mixing in a peri-alpine lake (Lake of Ledro) located in Trentino Alto Adige (Italy). It represents an interesting case study because of two main reasons: it is surrounded by mountains, which affect wind distribution and consequently produce a non homogeneous wind stress of the lake surface; in recent years the lake has suffered for intense blooms of the harmful cyanobacterium \textit{Planktothrix Rubescens}, occurring in the winter season, characterized by the absence stratification. The study is carried out numerically, usin

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12

Schimmelpfennig, Sebastian [Verfasser], Gunnar [Akademischer Betreuer] Nützmann, Tobias [Akademischer Betreuer] Krüger, and Bertram [Akademischer Betreuer] Boehrer. "Lake Tegel: hydrodynamics, pharmaceutical micro-pollutants and management strategies / Sebastian Schimmelpfennig. Gutachter: Gunnar Nützmann ; Tobias Krüger ; Bertram Boehrer." Berlin : Mathematisch-Naturwissenschaftliche Fakultät, 2015. http://d-nb.info/1081211210/34.

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13

Seker-Elci, Sebnem. "Modeling of Hydrodynamic Circulation and Cohesive Sediment Transport and Prediction of Shoreline Erosion in Hartwell Lake, SC/GA." Diss., Georgia Institute of Technology, 2004. http://hdl.handle.net/1853/5081.

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This dissertation addresses hydrodynamics, sediment transport and shoreline erosion within the main pool of Hartwell Lake, a U.S. Army Corps of Engineers reservoir built on the Savannah River, between Anderson, South Carolina, and Hartwell, Georgia, USA. A U.S. Environmental Protection Agency (EPA) Superfund site is located on a tributary of Hartwell Lake because of high concentrations of polychlorinated biphenyls (PCBs) in the lake sediments. PCBs are hydrophobic and typically bond to fine-grained sediments, such as silts and clays. The primary goal of the study was to document, through field

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14

Castro, Marcelo Mendes de. "Modelação matemática de lagos e reservatórios: caso do Reservatório Billings." Universidade de São Paulo, 2010. http://www.teses.usp.br/teses/disponiveis/3/3147/tde-18082010-165433/.

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Modelos numéricos são importantes ferramentas para avaliação do comportamento de corpos hídricos, notadamente com relação ao decaimento e mistura de constituintes ao longo do tempo. Neste trabalho apresenta-se o método empregado para adaptação e aplicação de um modelo matemático hidrodinâmico 2DH para simulação de variáveis de qualidade das águas a reservatórios rasos ou polimíticos. A descrição do desenvolvimento do modelo empregado (IPH-ECO), do processo de análise das condições do reservatório, seleção de dado intervenientes, discretização espacial e temporal, definição das condições de con

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15

Gale, Emma Jane. "The hydrodynamics of intermittently closing and opening lakes and lagoons." University of Western Australia. School of Environmental Systems Engineering, 2006. http://theses.library.uwa.edu.au/adt-WU2007.0025.

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[Truncated abstract] Coastal lagoons play an important role in the transport of materials between the coastal zone and the ocean. Understanding the dynamics associated with the movement of waters between and within these systems is therefore significant in defining the ecological health of the system. An important sub category of lagoons is Intermittently Closing and Opening Lakes and Lagoons (ICOLLs). These systems lack any significant river inflow; have a restricted sill type inlet and experience intermittent exchange with the ocean, making them susceptible to the retention of nutrients and

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16

Simoncelli, Stefano. "Hydrodynamics of migrating zooplankton in lakes." Thesis, University of Bath, 2018. https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.761048.

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Zooplankton diel vertical migration (DVM) plays a pivotal role in controlling trophic interactions and nutrient transport in lakes and oceans. Understanding behaviours and responses of diel migrators is therefore essential to knowledge of physical processes and ecosystem functioning. This thesis investigated zooplankton hydrodynamics during the DVM in freshwater bodies through two different research topics. The first research explored the potential of swimming zooplankton hydrodynamics in affecting lake turbulent and biological processes. Past research suggests that zooplankton may be able to

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17

McCulloch, Andrew John. "Developing and Calibrating the Hydrodynamic and Water Quality Model CE-QUAL-W2 for Banks Lake Washington." PDXScholar, 2011. https://pdxscholar.library.pdx.edu/open_access_etds/180.

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Located in central Washington State, Banks Lake serves as an irrigation storage reservoir for the Columbia Basin Irrigation Project and is home to a diverse fisheries population. The current hydrologic management strategies used for Banks Lake have been chosen to serve two purposes: to adequately store and provide irrigation water for the Columbia Basin Irrigation Project and to maintain a healthy aquatic environment suitable for the growth and habitation of local flora and fauna. Increased needs for irrigation water within arid central Washington poses additional challenges to reservoir manag

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18

Cooley, Paul M. "Mapping the nearshore substrates and hydrodynamics in lakes." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1997. http://www.collectionscanada.ca/obj/s4/f2/dsk3/ftp04/mq23264.pdf.

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19

Setegn, Shimelis Gebriye. "Modelling Hydrological and Hydrodynamic Processes in Lake Tana Basin, Ethiopia." Doctoral thesis, KTH, Vattendragsteknik, 2010. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-12024.

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Lake Tana Basin is of significant importance to Ethiopia concerning water resources aspects and the ecological balance of the area. The growing high demands in utilizing the high potentials of water resource of the Lake to its maximal limit, pictures a disturbing future for the Lake. The objective of this study was to assess the influence of topography, soil, land use and climatic varia-bility on the hydrological and hydrodynamic processes of the Lake Tana Basin. The physically based SWAT model was successfully calibrated and validated for flow and sediment yield. Se-quential uncertainty fitti

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20

Soetanto, Budi, and soetanto@gmail com. "EVALUATION OF SEDIMENTATION PROCESSES IN A COASTAL LAKE: CAUSEWAY LAKE, THE CAPRICORN COAST CASE STUDY." Central Queensland University. Engineering, 2007. http://library-resources.cqu.edu.au./thesis/adt-QCQU/public/adt-QCQU20070622.122252.

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This thesis presents analysis of the hydrodynamic and sedimentation changes of the Causeway Lake, Queensland. It was created in 1939 when a causeway and bridge construction was built across the estuary entrance. Since the construction, significant sediment retention has occurred in the lake. The sediment study presented in this thesis was undertaken based on historical data, field data measurement and numerical modelling, supported by theoretical analysis. Based on bathymetry data for the period from 1986 and 2003, an average of 2500 m3/year of sediment has settled in the estuary. To verify th

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21

Paul, Seema. "Data preparation, hydrodynamic and contaminant transport shallow-water simulations of Lake Victoria." Licentiate thesis, KTH, Vatten- och miljöteknik, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-263593.

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This study explores shallow lake numerical hydrodynamic processes that support model development and validation, extreme events and effects of water circulation in Lake Victoria. Lake Victoria is the second largest freshwater lake in the world, and the largest in East Africa. It is the major freshwater reservoir and source for domestic, agriculture, industrial, fishery, and transport. The resources support livelihoods and ecosystem services for over 40 million people. The lake is severely affected by water quality degradation by pollution. This thesis aims at improving the understanding by fol

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22

Chilmakui, Chandra Sekhar. "Sediment Transport and Pathogen Indicator Modeling in Lake Pontchartrain." ScholarWorks@UNO, 2006. http://scholarworks.uno.edu/td/326.

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A nested three dimensional numerical modeling application was developed to determine the fate of pathogen indicators in Lake Pontchartrain discharged from its tributaries. To accomplish this, Estuarine, coastal and ocean model with sediment (ECOMSED) was implemented to simulate various processes that would determine the fate and transport of fecal coliform bacteria in the lake. The processes included hydrodynamics, waves, sediment transport, and the decay and transport of the fecal coliforms. Wind and tidal effects were accounted along with the freshwater inflows. All the components o

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23

Boegman, Leon. "Application of a two-dimensional hydrodynamic and water quality model to Lake Erie." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1999. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape8/PQDD_0005/MQ46066.pdf.

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24

Schutten, Johan. "Biomechanical limitations on macrophytes in shallow lakes." [Amsterdam] : Amsterdam : Instituut voor Biodiversiteit en Ecosysteemdynamica (IBED) ; Universiteit van Amsterdam [Host], 2005. http://dare.uva.nl/document/78031.

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25

Dusini, Douglas S. "The effect of Lake Erie water level variation on sediment resuspension." Connect to this title online, 2005. http://rave.ohiolink.edu/etdc/view?acc%5Fnum=osu1112041317.

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Thesis (M.S.)--Ohio State University, 2005.<br>Document formatted into pages; contains x, 80 p.; also includes graphics (some col.). Includes abstract and vita. Includes bibliographical references (p. 78-80). Available online via OhioLINK's ETD Center.

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26

Ischen, Marc. "Using Two-Dimensional Numerical Models to Analyze Hydraulic Effects of Constricted Flows through the Rigolets Pass between Lake Pontchartrain and Lake Borgne." ScholarWorks@UNO, 2009. http://scholarworks.uno.edu/td/922.

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The objective of this study was to determine if numerical models commonly used for large scale applications could also be used to model flow through flood control structures in the Rigolets Pass between Lake Borgne and Lake Pontchartrain. For this purpose a small scale physical model was built. It showed that bi-stable flow can develop downstream of a constriction. Small changes in the distribution of the approaching flow significantly impacted flows downstream of the constriction. This behavior could not be properly reproduced by a small scale 2-dimensional RMA2 model of identical dimen

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27

Hornung, Ralf. "Numerical modelling of stratification in Lake Constance with the 1-D hydrodynamic model DYRESM." [S.l. : s.n.], 2002. http://www.bsz-bw.de/cgi-bin/xvms.cgi?SWB10361133.

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28

Roskosch, Andrea. "The influence of macrozoobenthos in lake sediments on hydrodynamic transport processes and biogeochemical impacts." Doctoral thesis, Humboldt-Universität zu Berlin, Mathematisch-Naturwissenschaftliche Fakultät II, 2011. http://dx.doi.org/10.18452/16423.

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Ziel dieser Dissertation ist, Wissensdefizite im Bereich der Bioirrigation von Süßwassersedimenten abzubauen. Als Untersuchungsorganismus wurde Chironomus plumosus ausgewählt weil diese weit verbreitete Larve ihre U-förmigen Röhren mit Überstandswasser durchspült und so Nahrung aus dem Wasser filtriert. Um Bioirrigation in Wohnröhren mit einem Durchmesser von ca. 1,7 mm zu untersuchen, wurden geeignete Messmethoden entwickelt, mit denen für das 4. Larvenstadium die Parameter Fließgeschwindigkeit (14,9 mm/s), Pumpzeit (33 min/h) und Pumprate (61 ml/h) gemessen wurden. Bei einer Populationsdich

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29

Cedillo, Paula. "Hydrodynamic modeling of the Green Bay of Lake Michigan using the environmental fluid dynamics code." Thesis, The University of Wisconsin - Milwaukee, 2016. http://pqdtopen.proquest.com/#viewpdf?dispub=1606696.

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<p> In this project we created a hydrodynamic model of the Lower Green Bay of Lake Michigan in Wisconsin, United States using the Visual Environmental Fluid Dynamics Code (EFDC). The model includes four tributary rivers to Lower Green Bay as well as the open boundary flow conditions at Chambers Island. This case study is used to: 1) compare the results obtained with a previous study of Lower Green Bay to validate the creation of the model 2) examine the hydrodynamics of the bay, and 3) create a framework for future studies at Lower Green Bay. The Geographic Information used to build the Grid w

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30

Soliman, Mohamed Reda Mohamed Mahmoud. "Numerical Study on Hydrodynamics and Sediment Transport of Shallow Coastal Lagoons." 京都大学 (Kyoto University), 2013. http://hdl.handle.net/2433/180478.

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31

Khadka, Pravakar. "Three-Dimensional Hydrodynamic Modeling to Analyze Salinity Interaction of Coastal Marshland with a Lake: A Case Study of Mentor Marsh near Lake Erie, Ohio." Youngstown State University / OhioLINK, 2020. http://rave.ohiolink.edu/etdc/view?acc_num=ysu1596468029655531.

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32

McKillip, Michael Lee. "Coupling the Hydrodynamic and Water Quality Model CE-QUAL-W2 With a Multi-Trophic Fish Bio-Energetics Model for Lake Roosevelt, Washington." PDXScholar, 2008. https://pdxscholar.library.pdx.edu/open_access_etds/3078.

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Grand Coulee Dam created Franklin D. Roosevelt Lake as part of the Columbia Basin Project. Located in northeastern Washington State, the Project provides economically important hydropower (19 billion kilowatt hours per year), irrigation (225,000 ha), flood control, and sport fishing ($5 to 20 million annually). A good system understanding aids in balancing these beneficial uses for the 230 km long reservoir. The reservoir's atypical 45-day mean residence time is much shorter than a typical lake, and much longer than for a riverine dam. The spring freshet requires drawdowns of 15 to 20 m for fl

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33

Morales, Marin L. A. "Numerical modelling of hydrodynamics and sedimentation in upland lakes and implications for sediment focusing." Thesis, University College London (University of London), 2013. http://discovery.ucl.ac.uk/1392018/.

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Despite the increasing resolution and precision of palaeolimnological studies these are often founded on assumptions regarding the distribution and completeness of lake deposits that are not always justified. In particular, the assumption that focusing of suspended sediments leads to preferential deposition in the deepest part of a lake is not always supported by observations, especially in upland lakes subject to energetic wind forcing. Surprisingly, very few studies have investigated the hydrodynamic controls on sediment accumulation. This thesis approaches this problem through physically-ba

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34

Jung, Kyung Tae. "On three-dimensional hydrodynamic numerical modelling of wind induced flows in stably stratified waters : a Galerkin-finite difference approach." Title page, contents and summary only, 1989. http://web4.library.adelaide.edu.au/theses/09PH/09phj95.pdf.

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35

Ekman, Frida. "Hydrodynamic modelling of fate and transport of natural organic matter and per- and polyfluoroalkyl substances in Lake Ekoln." Thesis, Uppsala universitet, Institutionen för geovetenskaper, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-433803.

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Societies are facing great challenges with obtaining a good quality and quantity of drinking water in the context of climate change. Increases in natural organic matter (NOM) and per- and polyfluoroalkyl substances (PFAS) have been observed in lakes and drinking water the past years, which is of great concern for water treatment plants in Sweden. It is therefore vital to increase the knowledge regarding the distribution of these substances in the environment. The main objective of this project was therefore to further develop a hydrodynamic model for lake Ekoln by including transportation and

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36

Fadel, Ali. "Physico-chemical functioning and development of phytoplankton in Karaoun reservoir (Lebanon) : application of a hydrodynamic-ecological model." Thesis, Paris Est, 2014. http://www.theses.fr/2014PEST1064/document.

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Quarante pour cent des réservoirs du monde souffrent d'eutrophisation. Ce problème mondial augmente la biomasse de phytoplancton dans les réservoirs et perturbé leurs utilisations. Comprendre les mécanismes et les processus qui contrôlent la prolifération de cyanobactéries sont de grande préoccupation. Les modèles d'écosystèmes nous permettent de simuler, d'analyser et de comprendre les processus écologiques dans les lacs et les réservoirs. La communauté de phytoplancton et de l'application du modèle écologique sont mal documentées dans le Moyen-Orient. Karaoun réservoir, le plus grand plan d'

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37

Gómez, Giraldo Evelio Andrés. "Observations of energy transfer mechanisms associated with internal waves /." Connect to this title, 2007. http://theses.library.uwa.edu.au/adt-WU2007.0045.

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38

Stojanovic, Severin. "Numerical Reaction-transport Model of Lake Dynamics and Their Eutrophication Processes." Thesis, Université d'Ottawa / University of Ottawa, 2011. http://hdl.handle.net/10393/20231.

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A 1D numerical reaction-transport model (RTM) that is a coupled system of partial differential equations is created to simulate prominent physical and biogeochemical processes and interactions in limnological environments. The prognostic variables considered are temperature, horizontal velocity, salinity, and turbulent kinetic energy of the water column, and the concentrations of phytoplankton, zooplankton, detritus, phosphate (H3PO4), nitrate (NO3-), ammonium (NH4+), ferrous iron (Fe2+), iron(III) hydroxide (Fe(OH)3(s)), and oxygen (O2) suspended within the water column. Turbulence is modelle

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Glenn, Kriton Campbell. "Sedimentary processes during the Late Quaternary across the Kimberley Shelf, Northwest Australia /." Title page, table of contents and abstract only, 2004. http://web4.library.adelaide.edu.au/theses/09PH/09phg5584.pdf.

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Thesis (Ph.D.)--University of Adelaide, School of Earth and Environmental Sciences, Discipline of Geology and Geophysics, 2004.<br>"February 2004" Includes bibliographical references (leaves 216-227).

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40

Dibling, David R. "Development And Validation Of A High-Resolution, Nearshore Model For Lake Erie." The Ohio State University, 2012. http://rave.ohiolink.edu/etdc/view?acc_num=osu1354052794.

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41

John, V. Chandy. "Development and application of linked hydrodynamic-water quality models for small lakes, reservoirs, and tidal inlets." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1997. http://www.collectionscanada.ca/obj/s4/f2/dsk2/ftp03/NQ31528.pdf.

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42

Williams, Nicholas Trevor. "Modeling Dissolved Oxygen in Lake Powell using CE-QUAL-W2." BYU ScholarsArchive, 2007. https://scholarsarchive.byu.edu/etd/849.

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Water quality models in the Colorado River Basin have been developed for the basin, river, and individual reservoirs. They are used to support water quality programs within the basin. The models are periodically reviewed and updated to improve the accuracy of simulations. Improving the usefulness of the Lake Powell model, one of the key reservoirs in the basin, is the subject of this study. Lake Powell is simulated using a hydrodynamic and water quality model, CE-QUAL-W2. Previously the model has been used at Lake Powell to simulate hydrodynamics, temperature, and total dissolved solids with a

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43

Scheifhacken, Nicole. "Life at turbulent sites benthic communities in lake littorals interacting with abiotic and biotic constraints ; field and mesocosm investigations /." [S.l. : s.n.], 2008. http://nbn-resolving.de/urn:nbn:de:bsz:352-opus-57347.

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44

Bierlein, Kevin Andrew. "Predicting induced sediment oxygen flux in oxygenated lakes and reservoirs." Diss., Virginia Tech, 2015. http://hdl.handle.net/10919/73502.

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Bubble plume oxygenation systems are commonly used to mitigate anoxia and its deleterious effects on water quality in thermally stratified lakes and reservoirs. Following installation, increases in sediment oxygen flux (JO2) are typically observed during oxygenation and are positively correlated with the bubble plume gas flow rate. Studies show that JO2 is controlled by the thickness of the diffusive boundary layer (DBL) at the sediment-water interface (SWI), which is in turn controlled by turbulence. As a result, JO2 can be quite spatially and temporally variable. Accurately predicting o

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45

Boegman, Leon. "The degeneration of internal waves in lakes with sloping topography." University of Western Australia. Centre for Water Research, 2004. http://theses.library.uwa.edu.au/adt-WU2005.0043.

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[Truncated abstract] Observations are presented from Lake Biwa (Japan) and Lake Kinneret (Israel) showing the ubiquitous and often periodic nature of high-frequency internal waves in large stratified lakes. In both lakes, high-frequency wave events were observed within two distinct categories: (1) Vertical mode one solitary waves with wavelength ˜100-500 m and frequency near 103 Hz and (2) sinusoidal vertical mode one waves with wavelength ˜5-30 m and frequency just below the local maximum buoyancy frequency near 102 Hz. The sinusoidal waves were associated with shear instability and were sho

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Yeates, Peter Stafford. "Deep mixing in stratified lakes and reservoirs." University of Western Australia. Centre for Water Research, 2008. http://theses.library.uwa.edu.au/adt-WU2008.0046.

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The onset of summer stratification in temperate lakes and reservoirs forces a decoupling of the hypolimnion from the epilimnion that is sustained by strong density gradients in the metalimnion. These strong gradients act as a barrier to the vertical transport of mass and scalars leading to bottom anoxia and subsequent nutrient release from the sediments. The stratification is intermittently overcome by turbulent mixing events that redistribute mass, heat, dissolved parameters and particulates in the vertical. The redistribution of ecological parameters then exerts some control over the ecologi

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47

Janssen, Bärbel [Verfasser], and Rolf [Akademischer Betreuer] Rannacher. "Adaptive Coupling of Finite Element Methods for Simulation of Hydrodynamics and Pollutant Transport in Lakes / Bärbel Janssen ; Betreuer: Rolf Rannacher." Heidelberg : Universitätsbibliothek Heidelberg, 2011. http://d-nb.info/117978362X/34.

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48

Man, Xiamei. "Managing Oxygen in Lakes and Reservoirs with Improved One-dimensional and Three-dimensional Hydrodynamic and Water-quality Models." Thesis, The University of Sydney, 2022. https://hdl.handle.net/2123/29759.

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Water-quality problems including hypoxia, eutrophication, algal blooms and the release of reduced species from the sediments in lakes and reservoirs remain a global challenge due to their negative impacts on fisheries, greenhouse gas emissions and water-related tourism. Water-quality management systems such as bubble plume diffusers and side-stream supersaturation systems (SSS) are deployed to deal with these water-quality problems. To successfully manage water-quality using these systems, it is important for water-quality managers to accurately evaluate the performance of the water-quality ma

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49

Donald, Ian R. "A preliminary assessment of the hydrodynamics of the Touw River and Wilderness Lakes system with emphasis on the management of the estuary mouth." Thesis, Stellenbosch : Stellenbosch University, 2013. http://hdl.handle.net/10019.1/85775.

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Thesis (MEng)--Stellenbosch University, 2013.<br>ENGLISH ABSTRACT: The Touw River estuary and Wilderness coastal lakes is a sensitive system from a flooding and ecological viewpoint and, therefore, careful consideration is placed on the hydrodynamics and salinity levels within the system. The estuary consists of a “temporary open/closed” estuary, where during closed mouth conditions, the sand bar at the estuary mouth is artificially managed in an attempt to reduce flood water levels in the system. The reason behind this management strategy is the construction of residential property al

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50

Roskosch, Andrea [Verfasser], Gunnar [Akademischer Betreuer] Nützmann, Dagmar [Akademischer Betreuer] Haase, and Volker [Akademischer Betreuer] Hass. "The influence of macrozoobenthos in lake sediments on hydrodynamic transport processes and biogeochemical impacts / Andrea Roskosch. Gutachter: Gunnar Nützmann ; Dagmar Haase ; Volker Hass." Berlin : Humboldt Universität zu Berlin, Mathematisch-Naturwissenschaftliche Fakultät II, 2011. http://d-nb.info/1018232508/34.

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