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Rozprawy doktorskie na temat „Estuarine processes”

Autor: Grafiati

Data publikacji: 4 czerwca 2021

Data aktualizacji: 28 stycznia 2023

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1

Mendes, Renato Paulo dos Santos. "The Douro estuarine plume: detection, processes and dynamics." Doctoral thesis, Universidade de Aveiro, 2016. http://hdl.handle.net/10773/17073.

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Doutoramento em Física<br>O Douro é um dos maiores rios da Península Ibérica, constituindo a maior descarga de água doce para o Oceano Atlântico na costa noroeste portuguesa. A sua pluma estuarina tem particular relevância na dinâmica costeira e na modulação de fenómenos biogeoquímicos. São objetivos desta dissertação contribuir para a compreensão dos processos físicos associados à geração e propagação da pluma estuarina do Rio Douro no oceano, assim como para o conhecimento dos seus padrões de dispersão e da forma como estes alteram a hidrologia e a circulação costeira, considerando os

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Al-Enezi, Eqbal Hussain. "Modelling of phosphorus adsorption processes in estuarine and coastal water." Thesis, Cardiff University, 2011. http://orca.cf.ac.uk/54203/.

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This study consists of three parts: (i) Field work and data collection from the Loughor and Severn Estuaries. P adsorption increased with decreasing median sediment size in both estuaries. A positive correlation was found between the P adsorption in sediment and salinity in the Loughor Estuary, whereas a negative correlation was found in the Severn Estuary. Some factors, such as particle grain size, salinity, pH, organic matter, suspended sediment concentration and P concentration were found to control the exchangeable or loosely sorbed P (adsorbed P) in both estuaries. (ii) Laboratory experim

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Coffey, Michael. "The behaviour of trace metals in the Humber Estuary, U.K." Thesis, University of East Anglia, 1994. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.240991.

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Souza, Rogério Riker de. "Modelagem numérica da circulação de correntes de maré na Baía de Marajó e Rio Pará (PA)." Universidade de São Paulo, 2006. http://www.teses.usp.br/teses/disponiveis/3/3147/tde-19092006-154712/.

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A região amazônica possui uma vocação natural para a navegação, uma vez que os rios desempenham um papel preponderante, sendo em muitos casos as únicas alternativas de transporte e comunicação. O trabalho se insere nesse cenário, tendo como objetivo maior a sistematização do conhecimento a respeito da circulação de correntes de maré na Baía de Marajó e Rio Pará (PA), com foco na Área Portuária de Vila do Conde. O melhor entendimento sobre as correntes de maré será um elemento importante para o planejamento portuário e hidroviário interior, além de propiciar um incremento na segurança e otimiza

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Dyson, Kirstie Elizabeth. "Biodiversity and ecosystem processes in heterogeneous environments /." St Andrews, 2008. http://hdl.handle.net/10023/698.

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6

Kenny, Carolyn. "Nitrogen transformation processes and nitrous oxide evolution in estuarine intertidal zones." Thesis, Royal Holloway, University of London, 2005. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.417365.

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Smar, Daina. "An assessment of ecological processes in the Apalachicola estuarine system, Florida." Master's thesis, University of Central Florida, 2012. http://digital.library.ucf.edu/cdm/ref/collection/ETD/id/5506.

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The following is a compilation of field data collected in 2011 and 2012 in Apalachicola, FL as part of a five year study assessing the ecological effects of sea level rise in the northern Gulf of Mexico. Many coastal communities, both natural and developed, will soon be working to mitigate the effects of sea level rise, if they are not already doing so. This thesis investigates the natural patterns of the Apalachicola estuarine system through the collection and analysis of in situ water, sediment, and biomass samples. Additionally, results of the field samples are presented and recommendations

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8

Yannaccone, John A. "Numerical simulation of the effects of sea level rise on estuarine processes." Thesis, Virginia Polytechnic Institute and State University, 1987. http://hdl.handle.net/10919/50072.

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The increasing concentration of carbon monoxide and other gases in the earth’s atmosphere is expected to cause temperatures on earth to increase. This condition, known as the greenhouse effect, could cause the sea level to rise due to the partial melting of the polar icecaps and the thermal expansion of the oceans. Such a rise in the sea level would affect the tides, currents, and sediment and salinity distributions within estuaries. To see the nature of these effects, a parametric study was performed on the Rappahannock River in Virginia with a two-dimensional, laterally averaged, time-depe

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Budi, Santoso Eko. "Tidal anomalies at river entrances and the physical processes which generate them /." St. Lucia, Qld, 2004. http://www.library.uq.edu.au/pdfserve.php?image=thesisabs/absthe17707.pdf.

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Gomes, Filho Jose Gerardo Ferreira. "Pre- and post-settlement processes influencing the distribution of barnacles along estuarine gradients." Thesis, University of Plymouth, 2007. http://hdl.handle.net/10026.1/2409.

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Estuaries are the interface between freshwater systems and the sea, with clearly recognizable changes in the distribution of organisms along various environmental gradients from riverine to fully marine conditions. This thesis studied ecological processes affecting the distribution of marine species along estuarine gradients using both field and laboratory experiments with barnacles as a tractable model system. Elminius modestus Darwin, Semibalanus balanoides Linneaus, Chthamalus montagui Southward are the most common barnacle species found in the intertidal of British estuaries. Surveys perfo

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Weaver, Andrew John. "Numerical and analytical modelling of oceanic/atmospheric processes." Thesis, University of British Columbia, 1987. http://hdl.handle.net/2429/27560.

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Two problems in oceanic/atmospheric modelling are examined in this thesis. In the first problem the release of fresh water from a midlatitude estuary to the continental shelf is modelled numerically as a Rossby adjustment problem using a primitive equation model. As the initial salinity front is relaxed, a first baroclinic mode Kelvin wave propagates into the estuary, while along the continental shelf, the disturbance travels in the direction of coastally trapped waves but with a relatively slow propagation speed. When a submarine canyon extends offshore from the estuary, the joint effect of b

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12

Gao, Guanghai. "Numerical modelling of hydrodynamic and sediment-bacteria interaction processes in estuarine and coastal waters." Thesis, Cardiff University, 2008. http://orca.cf.ac.uk/54738/.

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A study has been undertaken to investigate and improve the representation and modelling of a range of various hydrodynamic, biochemical and sediment transport processes relating to the transport of enteric bacteria organisms in estuarine waters. In this study a relatively simple turbulence model was first further investigated to predict the complex three-dimensional flow structure in a flume with vegetation. The main purpose of this part of the study was to try and acquire accurate velocity profiles of complex flows without the need for a more advanced two-equation turbulence model, requiring

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13

Geronilla, Kristina. "Re-presenting the Waterfront: revealing the intersection of human and natural processes." Thesis, Virginia Tech, 2004. http://hdl.handle.net/10919/35894.

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Water and waterfronts are appealing to almost any person, as a visitor or designer. This study challenges the author's design processes and understanding of the landscape as the sculpted meeting ground, intersecting human and natural physical processes. It progresses from assumptions through collaborated ideas of others in a literature review through case studies of various waterfront situations and finally to the design project of the Jones Point waterfront in Alexandria, Virginia. Here the intermingled aspects from cultural activities over time and local, physical movement of land by water

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14

Cahyono, M. "Three-dimensional numerical modelling of sediment transport processes in non-stratified estuarine and coastal waters." Thesis, University of Bradford, 1993. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.520623.

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Details are given herein of the development, refinement and application of a higher-order accurate 3-D finite difference model for non-cohesive suspended sediment transport processes, in non-stratified estuarine and coastal waters. The velocity fields are computed using a 2-D horizontal depth-integrated model, in combination with either an assumed logarithmic velocity profile or a velocity profile obtained from field data. Also, for convenience in handling variable bed topographies and for better vertical resolution, a δ-stretching co-ordinate system has been used. In order to gain insight int

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15

Pidduck, Emma Louise. "The importance of micro-scale processes on the release of macro-nutrients from estuarine suspended sediments." Thesis, University of Plymouth, 2016. http://hdl.handle.net/10026.1/5378.

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The quality of water within an estuary is inseparable from the component parts; suspended particulate matter (SPM) and the balance of macro-nutrients. Long-term temporal variations and the horizontal advection of both SPM and macro-nutrient concentrations are well-constrained, but the vertical fluxes associated with micro-scale processes, such as turbulence and flocculation, are poorly constrained. The importance of three micro-scale processes on the interactions between SPM and inorganic macro-nutrients, nitrate (NO–3 ), ammonium (NH+4) and phosphate (PO3 –4 ), are examined in four field camp

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16

Vinson, Joshua S. "Role of oxygen and salinity on biogeochemical processes controlling mercury and monomethylmercury flux from estuarine sediments." View electronic thesis, 2008. http://dl.uncw.edu/etd/2008-2/r1/vinsonj/joshuavinson.pdf.

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17

Josko, Troselj. "FLUVIAL INFLUENCE ON ESTUARINE SEDIMENT TRANSPORT PROCESSES AND LINKAGE OF ITS OUTFLOW DATA TO COASTAL MODELING." Kyoto University, 2016. http://hdl.handle.net/2433/217745.

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Marvan, Fernando G. "A two-dimensional numerical transport model for organic-rich cohesive sediments in estuarine waters." Thesis, Heriot-Watt University, 2001. http://hdl.handle.net/10399/1212.

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Enot, Patricia. "Physical and geochemical processes affecting fate of low-pH leachate and associated metal contaminants in an estuarine aquifer." Thesis, University of Edinburgh, 2005. http://hdl.handle.net/1842/13801.

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The aim of the study was to carry out a much needed field investigation on the physical and chemical processes affecting contaminant movement in the groundwater of coastal aquifers, prior to their discharge to coastal waters. The study site located in Ayrshire, UK, was selected as it contains a low-pH acidic and metal-contaminated plume migrating to the Garnock estuary. The tidal estuary is characterised by a very low relief sandy beach. A key research motivation was to determine the mechanisms of contaminant attenuation on the transport pathway, which significantly reduced the impact of groun

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20

Schindler, Jennifer. "Estuarine Dynamics as a Function of Barrier Island Transgression and Wetland Loss: Understanding the Transport and Exchange Processes." ScholarWorks@UNO, 2010. http://scholarworks.uno.edu/td/1260.

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The Northern Gulf of Mexico and coastal Louisiana are experiencing accelerated relative sea level rise rates; therefore, the region is ideal for modeling the global affects of sea level rise (SLR) on estuarine dynamics in a transgressive barrier island setting. The field methods and numerical modeling in this study show that as barrier islands are converted to inner shoals, tidal exchange increases between the estuary and coastal ocean. If marshes are unable to accrete at a pace comparable to SLR, wetlands will deteriorate and the tidal exchange and tidal prism will further increase. Secondary

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21

Shi, Jie. "Integrated modelling of hydrological and hydrodynamic processes, dynamic bacteria decay with climate change and intensive farming in riverine and estuarine water." Thesis, Cardiff University, 2016. http://orca.cf.ac.uk/98617/.

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The water quality deteriorations in river and estuarine waters are a global issue. Particularly, the water quality impairment due to contamination of Faecal Bacteria Indicator, such as E. coli and Faecal Coliform in river channel, estuary bathing and shellfish waters are of special interests due to potential risks to human health. These indicators are important in water quality assessment outlined in both EU Water Framework Directive and US Clear Water Act. The hypothesis of the study is that the global climate change and intensive farming would cause severe deterioration to faecal coliform le

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22

Rubio, Zuazo Ana Maria, and anarubio zuazo@gmail com. "Environmental influences on the sustainable production of the Sydney rock oyster Saccostrea glomerata : a study in two southeastern Australian estuaries." The Australian National University. Centre for Resource and Environmental Studies, 2008. http://thesis.anu.edu.au./public/adt-ANU20080618.091057.

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There has been a continuous decline in both the production and general performance of the SRO in NSW estuaries over the past three decades. The relationship of this decline to both environmental and oyster-density related factors are assessed in this thesis. This question has been examined at different scales: a large scale that compares two different estuaries (Clyde and Shoalhaven Rivers, southern NSW); a regional scale that encompasses variations within an estuary and, at a lease scale that examines processes pertaining to individual or small groups of oysters. Levels of inorganic nutrients

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23

Mfikili, Athi Nkosibonile. "Influence of sedimentological and hydrological processes on the distribution of the Spartina maritima salt marsh in the Keurbooms Estuary, Western Cape." Thesis, Nelson Mandela Metropolitan University, 2017. http://hdl.handle.net/10948/13004.

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Salt marshes are some of the most productive ecosystems in the world and have been the centre of attention over the past few decades, due to their decline as a result of global climate change and anthropogenic impacts. The growth of salt marshes is determined by substrate type, soil conductivity and elevation. The permanently open Keurbooms Estuary along the south-east coast of South Africa is subjected to occasional fluvial flooding and its intertidal area lacks well developed salt marshes, with Spartina maritima restricted to the lower reaches of the Bitou tributary and a few sections of the

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Navera, Umme Kulsum. "Development of a model for predicting wave-current interactions and sediment transport processes in nearshore coastal waters." Thesis, Cardiff University, 2004. http://orca.cf.ac.uk/55916/.

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A two-dimensional numerical model has been developed to simulate wave-current induced nearshore circulation patterns in beaches and surf zones. The wave model is based on the parabolic wave equation for mild slope beaches. The parabolic equation method has been chosen because it is a viable means of predicting the characteristics of surface waves in slowly varying domains and in its present form dissipation and wave breaking are also included. The two dimensional parabolic mild slope equation was discretised and solved in a fully implicit manner, so stability did not create a major problem. Th

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25

Harbison, John Edwin. "Groundwater chemistry and hydrological processes within a Quaternary coastal plain: Pimpama, Southeast Queensland." Thesis, Queensland University of Technology, 2007. https://eprints.qut.edu.au/16647/1/John%20Harbison%20Thesis.pdf.

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The Pimpama estuarine plain in subtropical southeast Queensland is comprised of Quaternary sediments infilling older bedrock. These multilayered unconsolidated sediments have various depositional origins, and are highly heterogeneous. The plain is low-lying and the surface drainage is controlled by flood mitigation measures including tidal gates and channelised streams. The control of surface drainage potentially affects the shallow water table. This modification of hydrology has implications for future viability of agriculture and also the environmental health of waterways. Increased landscap

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Harbison, John Edwin. "Groundwater chemistry and hydrological processes within a Quaternary coastal plain: Pimpama, Southeast Queensland." Queensland University of Technology, 2007. http://eprints.qut.edu.au/16647/.

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The Pimpama estuarine plain in subtropical southeast Queensland is comprised of Quaternary sediments infilling older bedrock. These multilayered unconsolidated sediments have various depositional origins, and are highly heterogeneous. The plain is low-lying and the surface drainage is controlled by flood mitigation measures including tidal gates and channelised streams. The control of surface drainage potentially affects the shallow water table. This modification of hydrology has implications for future viability of agriculture and also the environmental health of waterways. Increased landscap

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Buzzelli, Christopher P. "Integrative analysis of ecosystem processes in the littoral zone of lower Chesapeake Bay: A modeling study of the Goodwin Islands National Estuarine Research Reserve." W&M ScholarWorks, 1996. https://scholarworks.wm.edu/etd/1539616592.

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Approximately 40% of the bottom of Chesapeake Bay is less than 2.0 m in depth and many of these broad shoal environments are bordered by wetlands. The vegetated and nonvegetated subtidal and intertidal environment is a dynamic mosaic of highly productive estuarine habitats linked by the exchange of waterborne materials. This study developed simulation models of primary production and material exchange for four littoral zone habitats of the Goodwin Islands National Estuarine Research Reserve (NERR) in lower Chesapeake Bay. Field studies were conducted to determine the sediment biogeochemical an

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Noernberg, Mauricio Almeida. "Processos morfodinâmicos no complexo estuarino de Paranaguá - Paraná - Brasil : um estudo a partir de dados in situs e Landsat-TM." reponame:Repositório Institucional da UFPR, 2001. http://hdl.handle.net/1884/48786.

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Orientador: Eduardo Marone<br>Co-orientadores: Rodolfo José Angulo, Evlyn M. L.M. Novo<br>Acompanha CD-ROM<br>Tese (doutorado) - Universidade Federal do Paraná<br>Resumo: A análise morfodinâmica do sistema costeiro aborda os processos causadores e transformadores de feições morfológicas, bem como as forças geradoras desses processos e seus mecanismos de interação. A grande variabilidade espacial e temporal dos processos costeiros e estuarinos é um desafio para o entendimento geral tanto da freqüência quanto da magnitude desses processos, bem como de seu grau de influência no transporte e bal

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Siqueira, Bibiana Kumpera. "Contribuição ao processo sedimentar atual no Canal do Ararapira, sistema estuarino-lagunar de Cananéia-Iguape (SP)." Universidade de São Paulo, 2007. http://www.teses.usp.br/teses/disponiveis/21/21133/tde-01072008-102612/.

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O presente trabalho tem, como objetivo, analisar o processo de sedimentação atual no Canal do Ararapira, Sistema Estuarino Lagunar de Cananéia-Iguape (SP), através das características composicionais e granulométricas dos sedimentos de fundo e distribuição da matéria orgânica sedimentar e carbonatos, relacionando estes parâmetros à configuração geral do canal e aos processos oceanográficos que ali atuam. Foram realizadas análises granulométricas, conteúdo de carbonato e matéria orgânica sedimentar (C, N, S) em 60 amostras de sedimentos coletadas em um cruzeiro oceanográfico realizado no mês de

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Mahamod, Yusuff. "Sedimentary processes in the Dwyryd Estuary." Thesis, Bangor University, 1989. https://research.bangor.ac.uk/portal/en/theses/sedimentary-processes-in-the-dwyryd-estuary(ca0aea23-480c-4032-ba10-12a9adee740c).html.

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This study aims to describe and quantify the important sedimentary processes which control the dispersal and accumulation of sediment in the Dwyryd Estuary, adjacent to Tremadog Bay in West Wales. It is shown that sedimentation in the estuary is dominantly control by fast tidal currents, and in the bay by weak tidal currents. Landward transport of coastal sediments by tidal currents is the residual sediment transport path. The spatial distribution of textural parameters of the estuarine sediments is related to the strength of tidal currents as well as the morphology and bathymetry of the study

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Mhashhash, Aisha Fowzi. "Laboratory and numerical modelling studies of sediment flocculation processes in estuaries." Thesis, Cardiff University, 2018. http://orca.cf.ac.uk/114776/.

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Surface water is one of the fundamental parts of the environment and needs to be protected from all pollution sources for human survival. Urban development and human activities have increased the contamination of coastal and estuarine water due to insufficiently treated sewage, runoff from fertilised agricultural area and lawns and releasing industrial pollutant directly into river and estuaries. Cohesive sediment in estuaries can act as either a source or a sink of many pollutants, such as nutrients and heavy metals. Understanding the interactions between sediment and nutrients in water bodie

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Rouas, Guy. "Étude et modélisation par éléments finis des processus hydrosédimentaires estuariens." Compiègne, 1996. http://www.theses.fr/1996COMPD884.

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L'objet de ce travail a consisté à proposer et développer une gamme de modèles pour la simulation des processus hydrosédimentaires en estuaires. Dans une première partie, un modèle bidimensionnel vertical aux éléments finis résolvant les équations couplées de l'hydrodynamique, du transport du sel et des sédiments en suspension, et enfin de l'évolution des fonds soumis à l'érosion et au dépôt a été établi. La fermeture du système nécessite l'écriture de relations constitutives complémentaires exprimant les termes turbulents, la vitesse de chute moyenne du sédiment en fonction de sa concentratio

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Le, Normant Catherine. "Modélisation numérique tridimensionnelle des processus de transport des sédiments cohésifs en environnement estuarien." Toulouse, INPT, 1995. http://www.theses.fr/1995INPT014H.

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Cette these porte sur la modelisation numerique tridimensionnelle du transport en suspension des sediments cohesifs en estuaire. Dans un premier temps, le modele numerique telemac-3d, qui simule les ecoulements tridimensionnels en riviere et en mer, a fait l'objet de nouveaux developpements afin de representer les processus propres aux sediments fins (phenomene de floculation, mouvements de la creme de vase, consolidation du fond vaseux). L'etude d'un estuaire schematique a montre les capacites du code a simuler les phenomenes caracteristiques des environnements estuariens: propagation de la m

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Qu, Wenchuan. "Studies on nitrogen cycling processes in Lake Illawarra, New South Wales, Australia." Access electronically, 2004. http://www.library.uow.edu.au/adt-NWU/public/adt-NWU20050302.161641/index.html.

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Lisa, Jessica A. "Linking structure and function of microbial communities responsible for sedimentary nitrogen processes in North Carolina estuaries." W&M ScholarWorks, 2015. https://scholarworks.wm.edu/etd/1539616745.

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Estuaries and coastal areas are highly diverse and productive ecosystems that serve as critical habitats for many marine organisms. Anthropogenic activities and changes in coastal land use have resulted in nutrient over-enrichment, posing a threat to the ecological integrity of estuaries. Nitrogen is often the limiting nutrient and its dynamics are central in determining coastal ecosystem health. The cycling and removal of nitrogen is primarily microbially mediated and the structure of these microbial communities is tightly interlaced with ecosystem function. Recycling processes nitrification

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Andutta, Fernando Pinheiro. "O Sistema Estuarino dos rios Caravelas e Peruípe (Bahia): Observações, simulações, tempo de residência e processos difusivo e advectivo." Universidade de São Paulo, 2011. http://www.teses.usp.br/teses/disponiveis/21/21132/tde-27072011-150459/.

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O modelo numérico Delft3D-Flow foi utilizado nos estudos da distribuição e variabilidade de propriedades termohalinas, e da circulação tridimensional do sistema estuarino dos rios Caravelas e Peruípe-SERCP. Os resultados do modelo foram validados quantitativamente usando dados experimentais de marés de quadratura e de sizígia de correntes e salinidades em quatro estações fixas (duas em cada um dos estuários de Caravelas e Nova Viçosa). No processamento foram aplicadas inicialmente condições iniciais homogêneas da salinidade, densidade e dos coeficientes cinemáticos de viscosidade e difusividad

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Rybarczyk, Hervé. "Processus d'eutrophisation et ses consequences sur les peuplements d'un ecosysteme estuarien macrotidal, un exemple en manche orientale : la baie de somme." Paris 6, 1993. http://www.theses.fr/1993PA066231.

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La baie de somme est un domaine marin macrotidal de la manche orientale. Elle recoit par l'estuaire de la somme des apports en sels nutritifs en provenance d'un bassin versant marque par une agriculture moyenne. Pour prendre en compte cette situation d'interface une problematique et une methodologie originale de prelevement sur ces vastes estrans (72 km#2) ont ete developpees. Les principaux resultats obtenus montrent que les eaux de la baie sont distinctes des eaux cotieres. Physiquement avec une isohaline de 29,5 g/l##1 et biologiquement car elles correspondent a un peuplement phytoplanctoni

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Santos, Marcus Vinicius Peralva. "Utilização dos Componentes Biogênicos do Sedimento na Interpretação de Processos Sedimentares na Região Estuarina do Rio Jacuípe, Litoral Norte da Bahia." Instituto de Geociências, 2012. http://repositorio.ufba.br/ri/handle/ri/21499.

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Submitted by Everaldo Pereira (pereira.evera@gmail.com) on 2017-02-19T20:00:12Z No. of bitstreams: 1 Dissertação - Marcus Santos_2012.pdf: 1948179 bytes, checksum: d1039bb1045110cbcd0ea90bfd406844 (MD5)<br>Made available in DSpace on 2017-02-19T20:00:12Z (GMT). No. of bitstreams: 1 Dissertação - Marcus Santos_2012.pdf: 1948179 bytes, checksum: d1039bb1045110cbcd0ea90bfd406844 (MD5)<br>O presente trabalho teve como objetivo analisar os processos de sedimentação, transporte e energia hidrodinâmica atuantes na região estuarina do rio Jacuípe, Litoral Norte da Bahia, utilizando-se, para este fim,

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Calado, Leonardo Luiz. "Mapeamento cromoss?mico de genes ribossomais em esp?cies estuarinas da fam?lia Gerreidae Identifica??o de uniformidade cariot?pica e sua empregabilidade com fins biotecnol?gicos - REPROGEN." Universidade Federal do Rio Grande do Norte, 2013. http://repositorio.ufrn.br:8080/jspui/handle/123456789/12653.

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Made available in DSpace on 2014-12-17T14:05:23Z (GMT). No. of bitstreams: 1 LeonardoLC_TESE.pdf: 1919163 bytes, checksum: 5e4620dae5ce7f70fdc851fd5abad7dc (MD5) Previous issue date: 2013-07-19<br>Conselho Nacional de Desenvolvimento Cient?fico e Tecnol?gico<br>Perciformes are dominant in the marine environment, characterized as the largest and most diverse fish group. Some families, as Gerreidae, popularly known as silver jennies, carapebas, or mojarras have a high economic potential to marine fish farming, natural explotation and game fishing. Genetic information of these species are of fu

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Bachelet, Guy. "Processus de recrutement et rôle des stades juvéniles d'invertébrés dans le fonctionnement des systèmes benthiques de substrat meuble en milieu intertidal estuarien." Bordeaux 1, 1987. http://www.theses.fr/1987BOR10568.

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Bachelet, Guy. "Processus de recrutement et rôle des stades juvéniles d'invertébrés dans le fonctionnement des systèmes benthiques de substrat meuble en milieu intertidal estuarien." Grenoble 2 : ANRT, 1987. http://catalogue.bnf.fr/ark:/12148/cb37602511w.

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Marion, Claire. "Processus de sédimentation fine en domaine estuarien macrotidal : approche trans-disciplinaire et multi-échelles : application à l'estuaire de l'Authie, Nord de la France." Littoral, 2007. http://www.theses.fr/2007DUNK0188.

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Les mécanismes contrôlant la dynamique des sédiments fins en milieu estuarien sont complexes du fait de la multiplicité des processus en action et de leurs interactions diverses et encore souvent mal comprises. L’étude de la dynamique des sédiments fins regroupe quelques uns des enjeux environnementaux fondamentaux. En raison de leur forte affinité avec une large gamme de contaminants métalliques et organiques, les particules fines sont en mesure de concentrer la pollution provenant à la fois du bassin versant et du milieu marin et dont les risques respectifs sont croissants (agriculture, traf

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Joaquim, João Marcos Barreiros. "Avaliação da composição das águas e dos processos de circulação e mistura no sistema estuarino-lagunar do Itapocu, como subsídio ao ordenamento do uso da água." reponame:Repositório Institucional da UFSC, 2012. http://repositorio.ufsc.br/xmlui/handle/123456789/94558.

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Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro de Filosofia e Ciências Humanas, Programa de Pós-Graduação em Geografia, Florianópolis, 2010.<br>Made available in DSpace on 2012-10-25T12:06:40Z (GMT). No. of bitstreams: 1 280536.pdf: 1109467 bytes, checksum: 72e555876c071bdb1ad00a3e768076b0 (MD5)<br>O presente trabalho busca um entendimento dos processos de circulação e mistura no Sistema Estuarino-lagunar do Itapocu, entre os municípios de Barra Velha e Balneário Barra do Sul. A pesquisa visa o entendimento desses processos tendo como objetivos a determinação dos princ

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Cordier, Mateo. "Ecosystème estuarien et système économique régional: faisabilité d'une intégration par modélisation input-output : application au cas de l'habitat halieutique dans l'estuaire de la Seine." Doctoral thesis, Universite Libre de Bruxelles, 2011. http://hdl.handle.net/2013/ULB-DIPOT:oai:dipot.ulb.ac.be:2013/209905.

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Le modèle input-output régional environnementalisé développé dans la thèse de M. Cordier suggère qu’il serait possible de restaurer 25% des surfaces naturelles de nourriceries de poissons détruites dans l’estuaire de la Seine entre 1834 et 2004. Le modèle suggère que la mesure de restauration pourrait augmenter de 15% à 23% la biomasse de soles produite dans l’estuaire par rapport à une situation sans mesure. Quant à l’effet des coûts de restauration sur les agrégats macroéconomiques (PIB, emploi, etc.), il génère une diminution qui ne dépasse pas 0,5% par rapport à une situation sans mesure.

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Voltz, Baptiste. "Dynamique de la matière organique au sein dans les estuaires picards : caractérisation des faciès biosédimentaires et quantification des processus de minéralisation benthique." Thesis, Littoral, 2020. http://www.theses.fr/2020DUNK0579.

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Les estuaires assurent une production élevée et le transfert d'une grande quantité de matière organique (MO) du continent vers l'océan. Une étape importante pour comprendre les échanges de MO à l'interface continent - océan, le long de la côte française de la Manche Orientale, est d'établir un bilan de MO dans les trois plus grands estuaires : la Canche, l'Authie et de la Somme. Dans ce but, il a été réalisé une description sédimentologique et biologique du sédiment de surface et une caractérisation élémentaire et isotopique distinguant l'origine de la MO sédimentaire. La caractérisation du sé

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Roets, Adriaan. "A preliminary analysis of the sediment budget across the Swartvlei estuary mouth." Thesis, Stellenbosch : Stellenbosch University, 2014. http://hdl.handle.net/10019.1/95958.

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Thesis (MEng)--Stellenbosch University, 2014.<br>ENGLISH ABSTRACT: The Swartvlei estuary and lake system is situated on the southern coast of the Western Cape Province of South Africa and forms part of the core conservation area of the Wilderness National Park. The Swartvlei system comprises two interlinked water bodies, namely Swartvlei Lake and Swartvlei estuary. SANParks have been monitoring this estuary closely over the past two decades, due to its importance to the ecology and to tourism. There are also low-lying properties on the perimeter of the Swartvlei estuary which run the risk

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Raineault, Nicole A. "Effects of bulkheads on estuarine beach swash zone processes and characteristics." 2008. http://hdl.rutgers.edu/1782.2/rucore10001600001.ETD.17376.

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Garcia, Tigreros Fenix. "The Combined Effect of Ocean Acidification and Euthrophication on water pH and Aragonite Saturation State in the Northern Gulf of Mexico." Thesis, 2013. http://hdl.handle.net/1969.1/149421.

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Rising atmospheric carbon dioxide (CO2) concentrations are increasing the rate at which anthropogenic CO2 is accumulating in the ocean, and thereby acidifying ocean water. However, accumulation of anthropogenic CO2 is not the only process affecting coastal oceans. Anthropogenic inputs of nutrients to coastal waters can result in massive algal blooms, a process known as eutrophication. Microbial consumption of this organic matter depletes bottom waters of oxygen and increases acidity through the release of CO2. This study assesses the synergistic effect of ocean acidification and eutrophication

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Rubio, Zuazo Ana Maria. "Environmental influences on the sustainable production of the Sydney rock oyster Saccostrea glomerata : a study in two southeastern Australian estuaries." Phd thesis, 2007. http://hdl.handle.net/1885/49349.

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There has been a continuous decline in both the production and general performance of the SRO in NSW estuaries over the past three decades. The relationship of this decline to both environmental and oyster-density related factors are assessed in this thesis. This question has been examined at different scales: a large scale that compares two different estuaries (Clyde and Shoalhaven Rivers, southern NSW); a regional scale that encompasses variations within an estuary and, at a lease scale that examines processes pertaining to individual or small groups of oysters. ... A set of environmental in

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Yang, Wen-Bin, and 楊文彬. "Investigation on the Characteristics of GHGs Emitted from Industrial Wastewater Treatment Processes and Natural Estuarine Wetlands by In-situ Continuous Monitoring Technology." Thesis, 2018. http://ndltd.ncl.edu.tw/handle/x85k75.

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博士<br>國立中山大學<br>環境工程研究所<br>106<br>In the context of global warming and climate change, greenhouse gas (GHG) emission has received a considerable attention for the past decades. Of many natural GHG sources, wetland plays an important role in modulating the concentrations of GHGs in the atmosphere. This study aims to continuously monitor the emission of greenhouse gases (CO2, CH4, and N2O) from a constructed wetland. A self-designed dynamic floating chamber was applied to collect GHGs through a Teflon tube connected to the top of the chamber, and in-situ monitored the concentrations of GHGs with

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