Дисертації з теми "Rivers- Rivers basin and systems"
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Banerjee, Malini De. "High-Frequency Nitrate Monitoring in Dynamic River Systems: the Case of Three Iowa Rivers in the Mississippi Basin." Diss., University of Iowa, 2013. https://ir.uiowa.edu/etd/4818.
Повний текст джерелаRamos, Eunice Pereira. "Energy systems analysis of transboundary river basins in a nexus approach: the Sava river basin study case." Master's thesis, Universidade de Aveiro, 2015. http://hdl.handle.net/10773/15833.
Повний текст джерелаResource management policies are frequently designed and planned to target specific needs of particular sectors, without taking into account the interests of other sectors who share the same resources. In a climate of resource depletion, population growth, increase in energy demand and climate change awareness, it is of great importance to promote the assessment of intersectoral linkages and, by doing so, understand their effects and implications. This need is further augmented when common use of resources might not be solely relevant at national level, but also when the distribution of resources ranges over different nations. This dissertation focuses on the study of the energy systems of five south eastern European countries, which share the Sava River Basin, using a water-food(agriculture)-energy nexus approach. In the case of the electricity generation sector, the use of water is essential for the integrity of the energy systems, as the electricity production in the riparian countries relies on two major technologies dependent on water resources: hydro and thermal power plants. For example, in 2012, an average of 37% of the electricity production in the SRB countries was generated by hydropower and 61% in thermal power plants. Focusing on the SRB, in terms of existing installed capacities, the basin accommodates close to a tenth of all hydropower capacity while providing water for cooling to 42% of the net capacity of thermal power currently in operation in the basin. This energy-oriented nexus study explores the dependency on the basin’s water resources of the energy systems in the region for the period between 2015 and 2030. To do so, a multi-country electricity model was developed to provide a quantification ground to the analysis, using the open-source software modelling tool OSeMOSYS. Three main areas are subject to analysis: first, the impact of energy efficiency and renewable energy strategies in the electricity generation mix; secondly, the potential impacts of climate change under a moderate climate change projection scenario; and finally, deriving from the latter point, the cumulative impact of an increase in water demand in the agriculture sector, for irrigation. Additionally, electricity trade dynamics are compared across the different scenarios under scrutiny, as an effort to investigate the implications of the aforementioned factors in the electricity markets in the region.
As políticas de gestão de recursos são, frequentemente, desenvolvidas e planeadas para fazer face às necessidades específicas de determinados sectores, sem terem em conta os interesses de outros sectores que também utilizam os mesmos recursos. Num cenário de esgotamento de recursos, crescimento populacional, aumento da procura de energia e sensibilização para as mudanças climáticas, é de grande importância promover a avaliação de ligações intersectoriais e, ao fazê-lo, perceber as suas implicações e efeitos. Esta necessidade é ainda maior quando o uso comum de recursos não é relevante apenas a nível nacional mas também quando a distribuição de recursos se alarga a outras nações diferentes. A presente dissertação centra-se no estudo dos sistemas energéticos de cinco países da região sudeste da Europa que partilham a bacia do rio Sava (BRS), recorrendo a uma abordagem da relação água-alimentação(agricultura)-energia. No caso do sector de produção de eletricidade a utilização da água é essencial para a integridade dos sistemas energéticos, pois a produção de energia nos países da BRS provém de duas tecnologias principais que dependem da água: centrais hídricas e térmicas. A título de exemplo, em 2012, da produção de eletricidade dos países da BRS, 37% foi gerada a partir de energia hídrica e 61% produzida por centrais térmoelétricas. Olhando para a BRS, em termos da potência instalada existente, a bacia acomoda cerca de um décimo de toda a potência hidroelétrica instalada e, ao mesmo tempo, contribui com água para os sistemas de arrefecimento de 42% da potência total instalada das centrais térmicas em funcionamento na região. Este estudo integrado do nexus para a energia explora a dependência entre os sistemas energéticos da região com os recursos hídricos da bacia, entre os anos 2015 e 2030. Para tal, foi desenvolvido um modelo do sistema elétrico transnacional para fornecer uma base quantificavel à análise, usando o software de código aberto OSeMOSYS. A análise é feita a três áreas principais: a primeira corresponde ao impacto das estratégias de eficiência energética e energias renováveis no mix energético de produção de eletricidade; a segunda relaciona-se com os potenciais impactos das alterações climáticas, atendendo a previsões de um cenário moderado de mudanças climáticas e, por último, decorrente do ponto anterior, o impacto cumulativo do aumento da procura de água para irrigação no sector agrícola. Este estudo inclui ainda uma comparação da dinâmica da exportação/importação de eletricidade nos diferentes cenários, com o objetivo de investigar as implicações que os fatores mencionados anteriormente poderão ter nos mercados da eletricidade dos países desta região.
Zhao, Bo. "Occurrence and fate of N-nitrosamines and their formation potential in wastewater system and receiving rivers." Kyoto University, 2019. http://hdl.handle.net/2433/244538.
Повний текст джерелаYitbarek, Baye Andarge. "Hydrogeological and hydrochemical framework of complex volcanic system in the Upper Awash River basin, Central Ethiopia : with special emphasis on inter-basins groundwater transfer between Blue Nile and Awash rivers." Poitiers, 2009. http://theses.edel.univ-poitiers.fr/theses/2009/Yitbarek-Baye-Andarge/2009-Yitbarek-Baye-Andarge-These.pdf.
Повний текст джерелаIntegrated approach has been used to investigate the hydrogeological framework of a complex fractured volcanic aquifer system in the Upper Awash river basin located at the western shoulder of the Ethiopian rift. The groundwater flow system and mechanism of recharge of different aquifers have been studied using conventional hydrogeological field investigations, hydrochemistry, isotope hydrology and numerical groundwater flow modeling techniques. Litho-hydrostratigraphic relationships were constructed from lithologic logs obtained from exploratory drilling of deep boreholes. The result indicates quite complex flow pattern and hydraulic characteristics of the different volcanic aquifers. The litho-hydrostratigraphic correlation indicates that the permeable and porous scoraceous lower basaltic aquifer is extended laterally all the way from the Blue Nile Plateau to the study area. . The analysis of the temporal and spatial variation of water samples from different places revealed clear undwater-surface water interactions. New evidences have also emerged on the inter-basin groundwater transfer. Two distinct regional basaltic aquifers (Upper and lower) are identified showing distinct hydrochemical and isotopic signatures. In the southern part of the study area the upper and lower aquifers form one unconfined regional aquifer system. In the northern and central part of the basin, it appears that the two systems are separated by regional aquiclude forming confined aquifers, in places with artesian wells. The groundwater from the deep exploratory wells (>250m) tapping the lower basaltic aquifer and wells located in the south were found to be moderately mineralized (TDS: 400-600 mg/l), with relatively depleted stable isotope composition and with almost zero tritium. In contrast, the upper shallow aquifer has lesser ionic concentration, more isotopically enriched. Evidences from the different methods clearly indicate inter-basin groundwater transfer from the Blue Nile basin to the Upper Awash basin. The evidences also converge to testify common origin of recharge, presence of hydraulic connectivity for systems tapping the lower basaltic aquifer. This has enormous practical implication in finding large groundwater reserve at a greater depth that can solve the current water supply problems of the community including the capital Addis Ababa. It will also have important role in finding more regional aquifers along the plateau-rift margins in many areas having similar hydrogeological setup as the study area
Lorenzoni, Laura. "Sediment transport and distribution over continental shelves: a glimpse at two different river-influenced systems, the Cariaco Basin and the Amazon Shelf." Scholar Commons, 2012. http://scholarcommons.usf.edu/etd/4132.
Повний текст джерелаLatrubesse, Edgardo M., Eugenio Y. Arima, Thomas Dunne, Edward Park, Victor R. Baker, Fernando M. d’Horta, Charles Wight, et al. "Damming the rivers of the Amazon basin." NATURE PUBLISHING GROUP, 2017. http://hdl.handle.net/10150/625952.
Повний текст джерелаWong, Wing-sze. "Water chemistry in the Kam Tin basin, natural and authropogenic influences." Click to view the E-thesis via HKUTO, 2007. http://sunzi.lib.hku.hk/hkuto/record/B38605843.
Повний текст джерелаFung, Lai-kuen. "An Investigation of the stream water chemistry in a small drainage basin in Shek Kong, Hong Kong." Hong Kong : University of Hong Kong, 2000. http://sunzi.lib.hku.hk/hkuto/record.jsp?B22288077.
Повний текст джерелаMaddy, Darrel. "The Middle Pleistocene development of the rivers Severn and Avon." Thesis, Royal Holloway, University of London, 1989. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.311980.
Повний текст джерелаLorenzoni, Laura. "The influence of local rivers on the eastern cariaco basin, Venezuela." [Tampa, Fla.] : University of South Florida, 2005. http://purl.fcla.edu/fcla/etd/SFE0001152.
Повний текст джерелаFung, Lai-kuen, and 馮麗娟. "An Investigation of the stream water chemistry in a small drainage basin in Shek Kong, Hong Kong." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2000. http://hub.hku.hk/bib/B22288077.
Повний текст джерелаJenkins, William Owen. "Decision support systems in river basin management." Thesis, Imperial College London, 1988. http://hdl.handle.net/10044/1/47123.
Повний текст джерелаYilmaz, Deniz. "Estimation Of Specific Flow Duration Curves Using Basin Characteristics Of Rivers In Eastern Blacksea Basin." Master's thesis, METU, 2011. http://etd.lib.metu.edu.tr/upload/12613279/index.pdf.
Повний текст джерелаthe project discharge&rdquo
which is corresponding to 5 flow percentiles (5%, 10%, 15%, 20%, 25%) depending on topographical, meteorological, hydrologic and soil-land cover parameters through developing a multilinear statistical model for Iyidere Basin as a part of Eastern Black Sea Basin. Perimeter of the basin, the ratio of the basin perimeter to the main stream length of the same basin, the drainage frequency, the mean slope of basin, v the mean annual precipitation and the curve number are the parameters that have been analysed for the multilinear statistical model. Principal Component Analysis, Multiple Regression Analysis and Stepwise Regression Analysis have been run for the data sets. For the computed discharges validation has been done. As a result of validation, it has been seen that the stepwise regression gives much closer discharge values to the observed values than the multiple regression results.
Jenkins, Gareth. "An investigation of marine influence during deposition of the Lower Old Red Sandstone, Anglo-Welsh Basin, UK." Thesis, Cardiff University, 1998. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.287490.
Повний текст джерелаLanga, Sílvia da Fátima. "The impact and control of waterweeds in the Southern Mozambique Basin rivers." Thesis, Rhodes University, 2013. http://hdl.handle.net/10962/d1001905.
Повний текст джерелаDanner, Constance L. "Documentation and testing of the WEAP model for the Rio Grande/Bravo Basin." Thesis, (4 MB), 2006. http://handle.dtic.mil/100.2/ADA471843.
Повний текст джерела"August 2006." Description based on title screen as viewed on June 1, 2010. DTIC Descriptor(s): Computer Programs, Ground Water, Basins (Geographic), Computerized Simulation, Volume, Water Flow, Reservoirs, Mexico, North America, Streams, Banks (Waterways), Models, Physical Properties, Theses. DTIC Identifier(s): Rio Grande/Bravo Basin, Water Evaluation and Planning System, WEAP (Water Evaluation and Planning System), Weap Model, IBWC (International Boundary and Water Commission). Includes bibliographical references (p. 39-41). Also available in print.
Hewitt, Jack. "Factors Controlling Mercury Concentration in Rivers in the Mackenzie River Basin, Northwestern Canada." Thesis, Uppsala universitet, Luft-, vatten- och landskapslära, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-414036.
Повний текст джерелаBaggiano, Olivier. "The Murray - Darling Turtles: Gene Flow and Population Persistance in Dryland Rivers." Thesis, Griffith University, 2012. http://hdl.handle.net/10072/367471.
Повний текст джерелаThesis (PhD Doctorate)
Doctor of Philosophy (PhD)
Griffith School of Environment
Science, Environment, Engineering and Technology
Full Text
King, Alison Jane 1974. "Recruitment ecology of fish in floodplain rivers of the southern Murray-Darling Basin, Australia." Monash University, Dept. of Biological Sciences, 2002. http://arrow.monash.edu.au/hdl/1959.1/8391.
Повний текст джерелаSummerside, Scott Evan. "Systems analysis of upper San Pedro River Basin conflicts." Thesis, The University of Arizona, 1991. http://hdl.handle.net/10150/192127.
Повний текст джерелаFranzoia, Mariateresa. "Sediment yield in rivers at different time-scales." Doctoral thesis, Università degli studi di Padova, 2014. http://hdl.handle.net/11577/3423550.
Повний текст джерелаQuesta tesi è dedicata ad un tema particolare che riguarda i sotto-sistemi fluviali, vale a dire la valutazione dell'importo annuo di produzione di sedimenti attraverso una determinata sezione fluviale. Questo problema è stato ampiamente studiato in letteratura e i modelli sviluppati possono essere classificati in diversi gruppi a seconda delle caratteristiche morfologiche di cui tengono conto e della loro complessità. In ogni caso, il problema principale è sempre la grande quantità di dati richiesti. Con questo lavoro vogliamo trovare delle semplici relazioni che richiedano il minor numero di dati possibile, per questo abbiamo sviluppato le nostre valutazioni ad una scala spaziale di bacino ed assunto per il fiume l'ipotesi flusso localmente uniforme (LUF). Di conseguenza ogni tratto fluviale è definito dalla sua lunghezza, dalla larghezza, dala pendenza e dalla composizione granulometrica del fondo, mentre l'estremità a monte del canale LUF coincide col baricentro del bacino in cui si assume sia concentrata l'intera area. Prima si identifica una condizione di base, chiamata di equilibrio e rappresentata da una curva stazionaria (una relazione monomia tra le portate solida e liquida di tipo Engelund-Hansen), con lo scopo di valutare le deviazioni del trasporto solido reale dal valore di equilibrio, deviazioni che dipendono dalla scala temporale considerata. In particolare abbiamo sviluppato tre modelli, validi per tre diverse scale temporali. Per l'analisi a breve termine usiamo la soluzione deterministica armonica 1-D del fiume, che fornisce il ritardo e l'attenuazione della perturbazione del trasporto solido rispetto alla condizione di equilibrio. In altre parole, colleghiamo le deviazioni effettive del trasporto solido registrate a valle con le precedenti perturbazioni della portata liquida avvenute a monte. Per una scala pluriannuale integriamo il modello morfodinamica 1-D ad un modello zero-dimensionale. Dato che gli ingressi di acqua e sedimenti al fiume sono concentrati alla sua estremità a monte, la larghezza dell'intero fiume è ipotizzata costante, mentre la pendenza e la composizione granulometrica sono considerate essere variabili nel tempo. Ne risulta un modello matematico implicito e non lineare, ma a questa scala temporale lo possiamo semplificare al fine di trovare una soluzione analitica semplice e generica per l'evoluzione morfologica pluriennale del fiume. Infine, per un'analisi a lungo termine integriamo numericamente il modello morfodinamico 0-D esatto per valutare le reazioni morfologiche di un fiume a scala temporale geologica. In questo caso si schematizza il fiume con due canali LUF contigui, che rappresentano rispettivamente il tratto montano e e il tratto di pianura del reale corso d'acqua. In questo modo, questo modello può simulare il comportamento tipico dei fiumi naturali mostrando una differenziazione granulometrica (affinamento) verso valle accompagnata da pendenze minori, senza i costi computazionali necessari per un modello unidimensionale completo. Sono stati fatti alcuni confronti e applicazioni numeriche.
Silveira, André Filipe. "Polycentricity and the adaptive capacity of river basin governance systems : insights from the River Rhine and the Pearl River (Zhujiang)." Thesis, University of Cambridge, 2015. https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.708546.
Повний текст джерелаGibbs, Helen Margaret. "The interactions between macrophytes and sediments in urban river systems." Thesis, Queen Mary, University of London, 2013. http://qmro.qmul.ac.uk/xmlui/handle/123456789/8480.
Повний текст джерелаOsei-Twumasi, Anthony. "Integrated modelling studies of solute transport in river basin systems." Thesis, Cardiff University, 2010. http://orca.cf.ac.uk/54991/.
Повний текст джерелаHoeinghaus, David Joseph. "Food web architecture in natural and impounded rivers of the Upper Parana drainage basin, Brazil." Diss., Texas A&M University, 2006. http://hdl.handle.net/1969.1/4845.
Повний текст джерелаKneis, David. "A water quality model for shallow river lake systems and its application in river basin management." Phd thesis, [S.l.] : [s.n.], 2007. http://opus.kobv.de/ubp/volltexte/2007/1464.
Повний текст джерелаGomes, Daniel Dantas Moreira. "Gis applied to analysis and zoning systems environment of the river Mundaà River Basin - PE / AL." Universidade Federal do CearÃ, 2015. http://www.teses.ufc.br/tde_busca/arquivo.php?codArquivo=17248.
Повний текст джерелаGiven the population growth, technological development and the increasing demand for natural resources becomes clear the importance of the rational and sustainable use of these resources, mainly in the Northeast region of Brazil, which has a major imbalance between supply and demand water and suffer with various problems related to inappropriate land use. Analysis and zoning of different environmental systems, aided by geoprocessing tools, serve as input for land use planning, allowing knowledge and a better use of the potential environmental and reducing the negative effects caused by the inappropriate use of natural resources. Noting the foregoing, it is intended to carry out an analysis and zoning of environmental systems in the watershed of the Mundaà River (BHRM) - Pernambuco / Alagoas using geoprocessing and empirical models for determination of environmental vulnerability, identifying the main negative environmental impacts and propose a Geoenvironmental zoning model of the study area. The thesis is organized into seven sections, the first section presents the introduction of the research, justifying the relevance of the subject, exposing the thesis objectives, the organizational structure of the same, the literature review and theoretical foundations, and finally is held a demonstration of the technical and methodological procedures. The second section seeks to assess the morphometry of the basin of the Mundaà River, at this stage, the morphometric characteristics were grouped according to their properties: linear analysis, areal analysis and hypsometric analysis, where the linear attributes involve the drainage network and its spatial arrangement in the basin. To detail the study was considered the characterization of the basin of the Mundaà River and its sub-basins where each was analyzed individually. The third section was elaborated the mapping and characterization of geomorphic units of the watershed of the Mundaà River, interpreting the relief forms using different scales of identification and analysis. The elaborate geomorphological compartmentation considers the first four taxonomic levels of relief, where the morphogenetic processes and morphodynamics of the river basin were observed. In the fourth section was prepared mapping coverage and land use in the watershed study, serving as a planning tool and guidance for decision-making. On Thursday seeks to assess section, with the help of GIS techniques, environmental systems in the mentioned river basin, from the systematization and the interrelationship that exists between society and nature from the perspective of rational use of Geoenvironments, taking into account the capabilities and vulnerabilities. The sixth section we sought to establish a proposal for environmental zoning, using empirical models, through interpretation of remote sensing products and field analysis. Finally in the seventh section are made final thesis considerations.
Tendo em vista o aumento populacional, o desenvolvimento tecnolÃgico e a crescente demanda pelos recursos naturais torna-se clara a importÃncia do uso racional e sustentÃvel desses recursos, principalmente para a regiÃo Nordeste do Brasil, que apresenta um grande desequilÃbrio entre a oferta e a demanda de Ãgua, alÃm de sofrerem com diversos problemas relacionados ao uso inapropriado do solo. A anÃlise e zoneamento de diferentes sistemas ambientais, auxiliados pelos usos de ferramentas de geoprocessamento, servem como subsÃdio para um ordenamento territorial, permitindo um conhecimento e um melhor aproveitamento das potencialidades ambientais e diminuindo os efeitos negativos ocasionados pelo uso inadequado dos recursos naturais. Observando o que foi exposto, pretende-se realizar uma anÃlise e zoneamento dos sistemas ambientais na bacia hidrogrÃfica do Rio Mundaà (BHRM) â Pernambuco/Alagoas, utilizando tÃcnicas de geoprocessamento e modelos empÃricos para determinaÃÃo da vulnerabilidade ambiental, identificaÃÃo os principais impactos ambientais negativos e propor um modelo de zoneamento geoambiental da Ãrea em estudo. A tese està organizada em sete seÃÃes, na primeira seÃÃo apresenta-se a introduÃÃo da pesquisa, justificando a relevÃncia do tema, expondo os objetivos da tese, a estrutura de organizaÃÃo da mesma, a revisÃo de literatura e fundamentaÃÃes teÃricas, e por fim à realizada uma demonstraÃÃo dos procedimentos tÃcnicos e metodolÃgicos. A segunda seÃÃo busca avaliar a morfometria da bacia hidrogrÃfica do Rio MundaÃ, nessa etapa, as caracterÃsticas morfomÃtricas foram agrupadas segundo suas propriedades em: anÃlise linear, anÃlise areal e anÃlise hipsomÃtrica, onde os atributos lineares envolvem a rede de drenagem e seu arranjo espacial dentro da bacia. Para detalhar o estudo foi considerada a caracterizaÃÃo da bacia do Rio Mundaà e suas sub-bacias, onde cada uma foi analisada individualmente. A terceira seÃÃo elaborou-se o mapeamento e caracterizaÃÃo das unidades geomorfolÃgicas da bacia hidrogrÃfica do Rio MundaÃ, interpretando as formas do relevo utilizando diferentes escalas de identificaÃÃo e anÃlise. A compartimentaÃÃo geomorfolÃgica elaborada considera os quatros primeiros nÃveis taxonÃmicos de relevo, onde foram observados os processos morfogenÃticos e a morfodinÃmica da bacia hidrogrÃfica. Na quarta seÃÃo foi elaborado o mapeamento da cobertura e do uso da terra da bacia hidrogrÃfica em estudo, servindo como ferramenta de planejamento e de orientaÃÃo à tomada de decisÃo. Na quinta seÃÃo busca-se avaliar, com o auxÃlio das tÃcnicas de geoprocessamento, os sistemas ambientais na mencionada bacia hidrogrÃfica, a partir da sistematizaÃÃo e da inter-relaÃÃo que se dà entre Sociedade-Natureza na perspectiva do uso racional dos geoambientes, levando em consideraÃÃo as potencialidades e vulnerabilidades. A sexta seÃÃo buscou-se estabelecer uma proposta de zoneamento ambiental, utilizando modelos empÃricos, atravÃs de interpretaÃÃo de produtos de sensoriamento remoto e anÃlise de campo. E por fim na sÃtima seÃÃo sÃo feitas as consideraÃÃes finais da tese.
Redolfi, Marco. "Sediment transport and morphology of braided rivers : steady and unsteady regime." Thesis, Queen Mary, University of London, 2015. http://qmro.qmul.ac.uk/xmlui/handle/123456789/8857.
Повний текст джерелаCarini, Giovannella, and n/a. "Effects of Contemporary and Historical Processes on Population Genetic Structure of Two Freshwater Species in Dryland River Systems (Western Queensland, Australia)." Griffith University. Australian School of Environmental Studies, 2004. http://www4.gu.edu.au:8080/adt-root/public/adt-QGU20050113.081250.
Повний текст джерелаCarini, Giovannella. "Effects of Contemporary and Historical Processes on Population Genetic Structure of Two Freshwater Species in Dryland River Systems (Western Queensland, Australia)." Thesis, Griffith University, 2004. http://hdl.handle.net/10072/367070.
Повний текст джерелаThesis (PhD Doctorate)
Doctor of Philosophy (PhD)
Australian School of Environmental Studies
Full Text
Wong, Wing-sze, and 黃穎詩. "Water chemistry in the Kam Tin basin, natural and authropogenic influences." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2007. http://hub.hku.hk/bib/B38605843.
Повний текст джерелаKaraaslan, Huseyin Nail. "Estimation Of Specific Flow Duration Curves Using Basin Characteristics Of Rivers In Solakli And Karadere Basins." Master's thesis, METU, 2010. http://etd.lib.metu.edu.tr/upload/12612873/index.pdf.
Повний текст джерелаseasonal regression model (spring season) has also been developed by including the mean seasonal (spring) air temperature variable instead of snow covered area (SCA) in addition to basin parameters. By studying the spring model, effect of different variables from the annual model were tested and discussed with some recommendations for the future studies.
Lunn, Rebecca Jane. "A nitrogen modelling system for large river basins." Thesis, University of Newcastle Upon Tyne, 1995. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.294852.
Повний текст джерелаKerr, Daniel Ernest. "Late quaternary stratigraphy and depositional environments in the basin of the Richardson and Rae Rivers, N.W.T." Thesis, University of Ottawa (Canada), 1986. http://hdl.handle.net/10393/4773.
Повний текст джерелаSu, Van-Anh. "Promoting Cooperation for the Sustainable Development of International Rivers: A Study of the Mekong River Basin." Scholarship @ Claremont, 2013. http://scholarship.claremont.edu/cmc_theses/647.
Повний текст джерелаBoys, Craig Ashley, and n/a. "Fish-Habitat Associations in a Large Dryland River of the Murray-Darling Basin, Australia." University of Canberra. Resource, Environmental & Heritage Sciences, 2007. http://erl.canberra.edu.au./public/adt-AUC20070807.112943.
Повний текст джерелаSonnenberg, Rob. "Development of aquatic communities in high-altitude mine pit lake systems of west-central Alberta." Thesis, Lethbridge, Alta. : University of Lethbridge, Dept. of Geography, 2011, 2011. http://hdl.handle.net/10133/3106.
Повний текст джерелаxvi, 224 leaves : col. ill., map ; 28 cm
Germain, Richard James. "Drought management using a geographical information system." Ohio : Ohio University, 1996. http://www.ohiolink.edu/etd/view.cgi?ohiou1178651687.
Повний текст джерелаLangham, Joseph Anthony. "Self organisation in braided systems : DEM analysis of the River Feshie, Scotland." Thesis, University of Hull, 2004. http://hydra.hull.ac.uk/resources/hull:8093.
Повний текст джерелаPulley, Simon. "Exploring fine sediment dynamics and the uncertainties associated with sediment fingerprinting in the Nene river basin, UK." Thesis, University of Northampton, 2014. http://nectar.northampton.ac.uk/7082/.
Повний текст джерелаKneece, Molly Rebecca. "Breeding and brood rearing ecology of Mottled Ducks in the Ashepoo, Combahee, and Edisto Rivers Basin, South Carolina." Thesis, Mississippi State University, 2016. http://pqdtopen.proquest.com/#viewpdf?dispub=10100314.
Повний текст джерелаMottled ducks (Anas fulvigula) are a non-migratory waterfowl species endemic to the western Gulf Coast, with a separate, genetically distinct subspecies (A. fulvigula fulvigula) occurring in peninsular Florida. Birds from Texas, Louisiana, and Florida were released in coastal South Carolina from 1975-1983, and banding data suggest an expanding population. I monitored 72 mottled duck nests and captured and radio-marked 196 pre-breeding and nesting females between 2010 and 2014 to study breeding ecology of these birds in the Ashepoo, Combahee, Edisto Rivers Basin. Nest success averaged 12% and varied with vegetation height and year. Indicated breeding pair surveys revealed breeding mottled ducks select managed wetland impoundments, predominately influenced by water depth. Future research should investigate ecology of nest predators of mottled ducks to devise successful habitat management strategies for breeding birds. Preliminary evidence suggests that managed wetland impoundments are important to breeding and brood rearing mottled ducks in coastal South Carolina.
Hill, Clement Michael. "The magnitude of sediment delivery within a rivers drainage basin on the tropical coast of north east Queensland." Thesis, Queensland University of Technology, 1993. https://eprints.qut.edu.au/37120/1/37120_Hill_1993.pdf.
Повний текст джерелаAl-Hawas, Ibrahim A. M. "Clay mineralogy and soil classification of alluvial and upland soils associated with Blackwater and Nottoway rivers in southeastern Virginia." Thesis, Virginia Tech, 1989. http://hdl.handle.net/10919/44104.
Повний текст джерелаBecause the Coastal Plain of southeastern Virginia has not been extensively studied, thirty random samples associated with Blackwater and Nottoway rivers were collected in the spring of 1987 from Surry, Sussex, and Southampton counties. Soil classification as well as mineralogical, chemical, and physical analysis were conducted for all samples.
The purposes of this investigation were to: (1)classify the soils in this area, (2) determine the distribution of sand and clay minerals, (3) examine the weathering effect on clay minerals on different position of the landscape for different parent material sources.
The soils examined classified as follow: Aquic Hapludults 43% > Typic Hapludults 26.6% > Ultic Hapludalfs 10% > Humic Hapludults 3% = Typic Rhodudlts 3% = Aquic Hapludalfs 3% = Typic Udipsamment 3% = Typic Quartzpsamment 3% = Psammentic Hapludalfs. Qualitative analysis of clay minerals revealed that kaolinite and hydroxy interlayer vermiculite were the dominant clay minerals; that montmorillonite, mica, gibbsite quartz, and vermiculite were of lesser quantities; that chlorite, feldspar and interstratified minerals were of trace amounts. Kaolinite represents about 21-70%, HlV 11-60%, montmorillonite 0-20%, mica 0-16%, gibbsite 0-13%, quartz 1-12%, and vermiculite 0-10%. The presence of these minerals were mainly related to the acid reaction of the soil media, which was essentially attributed to Al and H ions in soil solution. From the past history and geological composition of the Piedmont it is assumed that kaolinitic minerals were transported and sedimented in the Coastal Plain. Hydroxy-interlayer vermiculite minerals was weathering from vermiculite because most of the Al was adsorbed by vermiculite to form HIV. Therfore, gibbsite was not precipitated. Montmorillonite was assumed to have formed from mica minerals. That was substantiated by statistical analysis which showed a high negative correlation between gibbsite and vermiculite (r=0.46, n=30) and between montmorillonite and mica (r=-0.6, n=10).
Master of Science
Tromboni, Flavia. "Integrated hydrologic-economic model for sustainable water resources management in front of climate change. The Tunuyán River basin and the Piave River Basin case studies." Doctoral thesis, Università degli studi di Padova, 2011. http://hdl.handle.net/11577/3423337.
Повний текст джерелаAbstract La ricerca ha analizzato la sruttura del sistema complesso costitutio da variabili idrologiche, economiche e climatiche, con l’obbiettivo della modellazioneper la gestione sostenibile delle risorce idriche. Due casi studi sono stati approfonditi, il bacino del fiume Tunuyan (Mendoza, Argentina) e il bacino del fiume Piave (Italia). Diverse metodologie di analisi dei dati sono state applicate, a causa di diversi obbiettivi gestionali e seconda della caratteristiche specifiche di ciascuna zona. Nel caso studio del bacino del fiume Tunuyan è stata condotta un’analisi di correlazione tra serie storiche di dati di produzione di uva, tenore zuccherino nell’uva, temperature mensili di precipitazioni, con l’obbiettivo di identificare possibili relazioni tra le variabili. Forti correlazioni sono state identificate tra produzione annuale di uva e temperatura minima di Giugno, temperatura minima di Luglio, temperatura minima di Novembre, temperatura minima di dicembre, temperatura massima di febbraio, temperatura massima di Novembre e l’indice PVC di precipitazioni. Un’analisi di regressione lineare multipla è infine stata applicata ai dati per quantificare tali relazioni. L’analisi delle tendenze delle serie storiche di dati meteorologici e di portata del fiume Tunuyán è stata condotta attraverso il test non parametrico Mann Kendall, che ha permesso di valutare le tendenze significative. Tendenze positive sono state identificate nella portata a monte totale e in quasi tutte le serie storiche delle portate mensili, tranne per Luglio, Agosto, Settembre e Dicembre, le cui tendenze sono risultate non significative. L’area di irrigazione ottimale con una pompa di estrazione di 12” ,le necessità energetiche e i costi di estrazione dell’acqua sotterranea sono stati calcolati attraverso i dati disponibili da test di pompaggio condotti dall’INA (Istituto Nacional del Agua di Mendoza). La domanda irrigua, calcolata come necessità idriche delle colture è stata stimata usando la formula FAO Penman-Monteith. Le variazioni nei costi sono state esaminate per valutare i possibili impatti del riscaldamento globale. L’incremento di area coltivata come conseguenza dello sviluppo economico è stato preso in considerazione. Infine tutte le variabili sono state integrate in un modello olisitco scritto in Vensim, con l’obbiettivo di analizzare la dinamica dell’intero sistema nel tempo. La formula obbiettivo del modello integrato è la massimizzazione dei profitti minimizzando l’utilizzo di risorsa idrica. Nel caso studio del bacino del Piave un’analisi di tendenza Mann-Kendall è stata condotta per individuare le tendenza nelle serie storiche di dati di precipitazione. Tendenze positive sono state identificate solo nelle precipitazioni di Settembre. Un modello di ottimizzazione scritto in GAMS è stato infine applicato per stimare il pattern di coltivazione per l’allocazione ottimale della risorsa idrica.
Perry, Matthew T. "Design and evaluation of a web mapping service for the Klamath River Basin /." California : Humboldt State University, 2005. http://hdl.handle.net/2148/25.
Повний текст джерелаDwyer, Brian James, University of Western Sydney, College of Social and Health Sciences, and School of Natural Sciences. "Aspects of governance and public participation in remediation of the Murray-Darling Basin." THESIS_CSHS_NS_Dwyer_B.xml, 2004. http://handle.uws.edu.au:8081/1959.7/776.
Повний текст джерелаDoctor of Philosophy (PhD)
Morris, Colleen, and ms_colleen_morris@hotmail com. "Water paths and the landscape: poetry of water paths watercourses waterways and rivers - fluid links between artists, ecology and the environment." RMIT University. Art, 2006. http://adt.lib.rmit.edu.au/adt/public/adt-VIT20080702.144923.
Повний текст джерелаAulinas, Masó Montse. "Management of industrial wastewater discharges in river basins through agents'argumentation." Doctoral thesis, Universitat de Girona, 2009. http://hdl.handle.net/10803/7804.
Повний текст джерелаLes contribucions d'aquest treball de recerca són dobles: primer, proposar l'ús d'un enfoc basat en la modelització amb agents per tal de conceptualitzar i integrar tots els elements que estan directament o indirectament involucrats en la gestió de l'aigua residual. Segon, proposar un marc basat en l'argumentació amb l'objectiu de permetre als agents raonar efectivament. La tesi conté alguns exemples reals per tal de mostrar com un marc basat amb agents que argumenten pot suportar diferents interessos i diferents perspectives. Conseqüentment, pot ajudar a construir un diàleg més informat i efectiu i per tant descriure millor les interaccions entre els agents. En aquest document es descriu primer el context estudiat, escalant el problema global de la gestió de la conca fluvial a la gestiódel sistema urbà d'aigües residuals, concretament l'escenari dels abocaments industrials. A continuació, s'analitza el sistema mitjançant la descripció d'agents que interaccionen. Finalment, es descriuen alguns prototips capaços de raonar i deliberar, basats en la lògica no monòtona i en un llenguatge declaratiu (answer set programming).
És important remarcar que aquesta tesi enllaça dues disciplines: l'enginyeria ambiental (concretament l'àrea de la gestió de les aigües residuals) i les ciències de la computació (concretament l'àrea de la intel·ligència artificial), contribuint així a la multidisciplinarietat requerida per fer front al problema estudiat. L'enginyeria ambiental ens proporciona el coneixement del domini mentre que les ciències de la computació ens permeten estructurar i especificar aquest coneixement.
Wastewater management is a very complex task. There is a high number of known and an increasing number of unknown pollutants whose individual and collective effects are very difficult to predict. Identifying and evaluating the impacts of environmental problems resulting from the interactions between our social system and its natural environment is a multifaceted critical issue. Environmental managers require tools to support their diagnoses for solving these problems. The contributions of this research work are twofold: first, to propose the use of an agent-based modelling approach in order to conceptualize and integrate all elements that are directly or indirectly involved in wastewater management. Second, to propose a framework based on argumentation that allows to reason effectively. The thesis provide some real examples to show that an agent-based argumentation framework can deal with multiple interests and different agents' perspectives and goals. This help to build a more effective and informed dialog in order to better describe the interaction between agents. In this document we first describe the context under study, scaling down the global river basins system to the urban wastewater systems and giving some more details for the specific scenario of industrial wastewater discharges. Then, we analyze the system in describing intelligent agents that interact. Finally, we propose some reasoning and deliberation prototypes by using an argumentation framework founded on non-monotonic logics (i.e. permitting to learn things that were previously not known) and the answer set programming specification language (i.e. a declarative programming language). It is important to remark that this thesis links two disciplines: environmental engineering (specifically the area of wastewater management) and computer science (specifically the area of artificial intelligence), contributing to the required multidsciplinarity needed to confront the complexity of the problem under study. From environmental engineering we obtain the domain knowledge whereas the computer science field permits us to structure and specify this knowledge.
Jones, Stuart Jason. "The evolution of alluvial systems in the south central Pyrenees, Spain." Thesis, University of Reading, 1998. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.301956.
Повний текст джерелаKaewkrajang, Vuttichai. "Integrated planning of water quality management system in the Tha Chin River Basin." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 2000. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape4/PQDD_0017/MQ54715.pdf.
Повний текст джерела