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Dissertations / Theses on the topic 'Fluvial sediments'

Author: Grafiati

Published: 4 June 2021

Last updated: 26 July 2025

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1

Heim, Sabine. "Geochronology of anthropogenic contaminants in fluvial sediments /." Aachen : Shaker, 2005. http://bvbr.bib-bvb.de:8991/F?func=service&doc_library=BVB01&doc_number=014779100&line_number=0001&func_code=DB_RECORDS&service_type=MEDIA.

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2

Taylor, Katherine Sarah. "Ephemeral-fluvial sediments as potential hydrocarbon reservoirs." Thesis, University of Aberdeen, 1994. http://digitool.abdn.ac.uk:80/webclient/DeliveryManager?pid=123206.

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Although reservoirs formed from ephemeral-fluvial sandstones have previously been considered relatively simple, unresolved problems of sandbody correlation and production anomalies demonstrate the need for improved understanding of their internal complexity. Ephemeral flows occur in direct response to precipitation, receiving little or no water from springs or other long-continued sources. They consequently predominate in dryland regions where precipitation is high in intensity, short lived and of limited areal extent. Resulting flow is high energy, relatively shallow and also restricted in du

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3

Heim, Sabine [Verfasser]. "Geochronology of Anthropogenic Contaminants in Fluvial Sediments / Sabine Heim." Aachen : Shaker, 2005. http://d-nb.info/118658825X/34.

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4

Ewald, Karl Heins. "Caracterização de formas topográficas em fundos de vale no Planalto de Cascavel, Região Oeste do Estado do Paraná." Universidade Estadual do Oeste do Paraná, 2013. http://tede.unioeste.br:8080/tede/handle/tede/1655.

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Made available in DSpace on 2017-07-10T17:51:34Z (GMT). No. of bitstreams: 1 Karl_Heins_Ewald.pdf: 3570741 bytes, checksum: c5bdd80e061dc3f0dc6cf78e808ab2d3 (MD5) Previous issue date: 2013-05-09<br>Coordenação de Aperfeiçoamento de Pessoal de Nível Superior<br>Rivers are important agents working in the sculpturing of relief, through its high transport capacity of sediments originary from slopes and marginal erosion. The modeling occurs through the processes of erosion and deposition of sediments, which depend on variables such as lithological composition, slope, and flooding. The processes

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5

Evans, Dyfed. "Fluvial dispersal of heavy metals in contaminated soils and sediments." Thesis, University of Bradford, 1991. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.334773.

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6

Saup, Casey Morrisroe. "Biogeochemical Cycling in Pristine and Mining-Impacted Upland Fluvial Sediments." The Ohio State University, 2020. http://rave.ohiolink.edu/etdc/view?acc_num=osu1593664378874682.

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7

Tofelde, Stefanie [Verfasser], and Taylor [Akademischer Betreuer] Schildgen. "Signals stored in sediment : fluvial sediments as records of landscape evolution / Stefanie Tofelde ; Betreuer: Taylor Schildgen." Potsdam : Universität Potsdam, 2018. http://d-nb.info/1218404566/34.

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8

Guarch, Ribot Alba. "Dissolved organic matter fluctuations in an intermittent headwater stream: from storm oscillations to decadal hydrological changes = Fluctuacions de la matèria orgànica dissolta en un riu de capçalera intermitent : de crescudes a canvis hidrològics decennals." Doctoral thesis, Universitat de Barcelona, 2017. http://hdl.handle.net/10803/406137.

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Dissolved organic matter (DOM) is an important source of carbon for aquatic microorganisms and it regulates many biogeochemical processes. Therefore, changes in river DOM concentration and properties could notably affect the functioning of fluvial and coastal ecosystems and alter the global carbon cycle. The DOM in headwater streams is strongly influenced by hydrology, as a consequence of the modification of catchment flow paths with high discharges. During storm events, the catchment hillsides are washed and terrigenous DOM is transported to rivers. In the Mediterranean region, the precipitat

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9

Chandra, Shobhit. "Fluvial landforms and sediments in the north-central Gangetic Plain, India." Thesis, University of Cambridge, 1993. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.309855.

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10

Hu, Mengyu. "Plio-Pleistocene environmental variations inferred from thick sediment sequences in the North China Plain." Thesis, University of Oxford, 1997. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.363619.

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11

Strogen, Dominic Paul. "Diagenesis of Middle to Upper Jurassic sandstones, East Greenland." Thesis, University of Reading, 1999. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.323408.

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12

Haddadchi, Arman. "River Trading: What Happens to Eroded Sediments?" Thesis, Griffith University, 2015. http://hdl.handle.net/10072/365455.

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Understanding of the sources and in-catchment stores of fluvial sediment, along with a full characterisation of the transport processes operating during the transit of sediment from upstream hillslopes to catchment outlet, is essential to accurately target management actions designed to reduce sediment delivery to receiving waters. An implicit assumption within catchment sediment models is that once sediment has entered the river it is transported to the outlet of the catchment. However, the accumulations of fine and coarse sediments in river channels and on floodplains tell us this is not cor

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13

Lee, Mui-fa Alison. "Sedimentary facies of fluvial-marine transition environments in Hong Kong : Ting Kok and Pak Nai Deltas /." Hong Kong : University of Hong Kong, 1999. http://sunzi.lib.hku.hk/hkuto/record.jsp?B21021211.

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14

Baines, Christopher David. "Electrical resistivity ground imaging (ERGI), field experiments to develop methods for investigating fluvial sediments." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 2001. http://www.collectionscanada.ca/obj/s4/f2/dsk3/ftp05/MQ65086.pdf.

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15

Arkell, B. P. "Magnetic tracing of fluvial sediments : A study with special emphasis on gravel-bed rivers." Thesis, University of Liverpool, 1985. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.354536.

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16

Llorca, Ballester Jaime. "Agradación fluvial en la llanura deltaica de Haslital (Alpes Suizos). Análisis de facies sedimentarias y modelización cronoestratigráfica." Doctoral thesis, Universitat de Barcelona, 2016. http://hdl.handle.net/10803/386409.

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El delta de Haslital (12 km de largo, 1 km de ancho), en los Alpes Berneses, ha progradado en el lago Brienz tras la retirada progresiva del glaciar Aare después del Último Máximo Glacial. Los deltas formados en cubetas de sobreexcavación glaciar pleistocenas constituyen cuencas sedimentarias de gran efectividad. El estudio de los registros sedimentarios en estas formaciones, así como la reconstrucción del proceso de agradación aluvial, proporcionan información sobre la dinámica fluvial, y los cambios ambientales y antropoinducidos ocurridos en las cuencas hidrográficas alpinas. Se reconstr

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17

Calvo, Tortajada Rubén. "Implementación del lidar terrestre en la caracterización y modelización de análogos de reservorios fluviales: desarrollo y aplicación de nuevas metodologías en afloramientos del abanico fluvial de Huesca (Mioceno de la Cuenca del Ebro)." Doctoral thesis, Universitat de Barcelona, 2016. http://hdl.handle.net/10803/396368.

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Las nuevas técnicas de recolección de datos digitales surgidas en los últimos años han dado lugar a avances significativos en el campo de la caracterización de afloramientos. Esta evolución se basa en la premisa de que cuanto mayor sea la cantidad, la calidad (exactitud), y la velocidad de recolección de los datos, mejores serán las interpretaciones y modelos que se deriven de ellos. Una de las técnicas más recientemente incorporadas en el estudio de afloramientos geológicos es el escaneo láser terrestre (TLS), el cual se basa en la tecnología lidar (desarrollada en la década de 1960). El o

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18

Tavares, Corrêa Carlos, and Ramírez Gustavo Rondón. "Impacto de la represa de Gallito Ciego en la estabilidad de línea de costa en la desembocadura del río Jequetepeque, Perú." Pontificia Universidad Católica del Perú. Centro de Investigación en Geografía Aplicada, 2015. http://repositorio.pucp.edu.pe/index/handle/123456789/119381.

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River plays an essential function in providing sediments to the beach stability but this importance has not yet been properly estimated on the Peruvian coastline. So, the aim of this study focuses on the role of river sediments in the stability of the coastline at the Jequetepeque river mouth, located at the northern coast of Peru. This river, whose basin covers an area of 4,200 square kilometers, provides in average more than 900 million cubic meters a year (MMC yr-1) of water, and 2.9-8.0 MMC yr-1 of sediments to the ocean. Since the start of the Gallito Ciego dam in 1987, more than 104 MM

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Celarino, Andre Luiz de Souza 1984. "Análise cronológica e pedológica de uma topossequência na planície fluvial do médio Mogi Guaçu." [s.n.], 2011. http://repositorio.unicamp.br/jspui/handle/REPOSIP/287282.

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Orientador: Francisco Sérgio Bernardes Ladeira<br>Dissertação (mestrado) - Universidade Estadual de Campinas, Instituto de Geociências<br>Made available in DSpace on 2018-08-18T07:37:54Z (GMT). No. of bitstreams: 1 Celarino_AndreLuizdeSouza_M.pdf: 6577902 bytes, checksum: d76059e9c39490c344571bfeab4259c6 (MD5) Previous issue date: 2011<br>Resumo: O rio Mogi Guaçu apresenta, no trecho próximo a Estação Ecológica de Jataí, em Luis Antônio-SP, elevada sinuosidade do canal e inúmeros meandros abandonados causados pela migração lateral e posterior avulsão do curso principal. Essa situação proporc

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20

Lee, Mui-fa Alison, and 李梅花. "Sedimentary facies of fluvial-marine transition environments in Hong Kong: Ting Kok and Pak Nai Deltas." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 1999. http://hub.hku.hk/bib/B31221270.

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21

López, Alonso Raúl. "Resistencia al flujo de ríos de montaña: desarrollo de equaciones de predicción." Doctoral thesis, Universitat de Lleida, 2005. http://hdl.handle.net/10803/8147.

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La influència de les àrees de muntanya en la generació de recursos hídrics, la geomorfologia del sistema fluvial i les avingudes de caràcter catastròfic és determinant. No obstant això, històricament el coneixement científic dels rius de sorra de plana ha estat superior que el dels rius de grava i de muntanya. Diverses investigacions han posat de manifest que els models hidràulics, de transport de sediment i geomorfològics desenvolupats per als primers no són directament extrapolables a aquests darrers.<br/>Un problema cabdal en Hidràulica fluvial és el de la resistència de la llera a l'avanç

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22

Campos, Karine Baldo de Genova. "Elementos potencialmente tóxicos nos sedimentos dos rios Jundiaí e Capivari: avaliação dos critérios de toxicidade e parâmetros de controle." Universidade de São Paulo, 2017. http://www.teses.usp.br/teses/disponiveis/64/64135/tde-26052017-091207/.

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O presente trabalho teve por objetivo estudar a especiação química dos principais elementos potencialmente tóxicos (Co, Cr, Cu, Zn, Cd, Ni e Pb), presentes nos sedimentos fluviais das bacias de drenagem dos rios Jundiaí e Capivari (SP) da nascente até à foz, identificando as ocorrências de origem naturais e antrópicas, utilizando diversos critérios de toxicidade e parâmetros de controle. A determinação da concentração total dos elementos, obtidas a partir do método da fusão alcalina, permitiu avaliar os critérios de toxicidade considerando os valores-guia de qualidade de sedimentos (VGQS), bem

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23

Valenza, Jeffery Michael. "Redbeds of the Upper Entrada Sandstone, Central Utah: Facies Analysis and Regional Implications of Interfingered Sabkha and Fluvial Terminal Splay Sediments." BYU ScholarsArchive, 2016. https://scholarsarchive.byu.edu/etd/6112.

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First distinguished from other sedimentary successions in 1928, the Entrada Sandstone has been the subject of numerous studies. The western extent of the formation was initially described as laterally continuous "earthy" red beds, and categorized as sub- to supratidal marine-influenced sediments. Recent workers have reexamined the sedimentary facies hosted by the Entrada Sandstone, and findings suggest purely terrestrial depositional environments. Several outcrops of the upper Entrada hosted peculiar sedimentary features, including undulatory and convex-upward, parallel-laminated bedforms, rem

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24

Bernal, Juliana Maria da Silva. "Contribuição do Aporte Fluvial de Sedimentos para a Construção das Principais Planícies Quaternárias do Estado da Bahia." Instituto de Geociências, 2016. http://repositorio.ufba.br/ri/handle/ri/22528.

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Submitted by Everaldo Pereira (pereira.evera@gmail.com) on 2017-05-16T15:04:10Z No. of bitstreams: 1 JulianaBernal_TESE.pdf: 11080977 bytes, checksum: dbc20353bf2c4549df077d3167ac1387 (MD5)<br>Made available in DSpace on 2017-05-16T15:04:10Z (GMT). No. of bitstreams: 1 JulianaBernal_TESE.pdf: 11080977 bytes, checksum: dbc20353bf2c4549df077d3167ac1387 (MD5)<br>O Estado da Bahia possui a linha de costa mais extensa do Brasil, com mais de 1.000 km de extensão, apresentando uma vasta diversidade de ambientes costeiros. A zona costeira baiana pode ser subdivida em quatro compartimentos principai

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25

Euzen, Cassandra. "Reconstruction spatio-temporelle des dépôts métalliques le long d'un hydrosystème fluvial fortement anthropisé : combinaison d'approches géochimiques, hydrogéomorphologiques et géochronologiques appliquée au Rhin supérieur." Electronic Thesis or Diss., Strasbourg, 2023. http://www.theses.fr/2023STRAH006.

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Connaitre l'évolution temporelle de la composition chimique des rivières fortement anthropisées est essentiel pour évaluer l'impact des activités humaines et des mesures de réduction de la pollution. La plupart des contaminants s'associant aux sédiments fins, l'analyse géochimique de dépôts sédimentaires bien datés formés dans les plaines inondables peut permettre de reconstruire la trajectoire des fleuves sur plus d’un siècle. Dans ce cadre, cette thèse a eu pour objectif de reconstruire, à partir d’archives sédimentaires, l’évolution des émissions humaines en métaux dans le Rhin supérieur. P

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Bernardino, José Carlos de Melo. "Estabilidade de cursos d\'água escoando sobre leitos aluvionares não coesivos." Universidade de São Paulo, 2005. http://www.teses.usp.br/teses/disponiveis/3/3147/tde-05052017-081843/.

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O adequado projeto de obras fluviais requer o conhecimento das condições sob as quais um curso d\'água natural atinge seu estado de equilíbrio. Para que este estado de equilíbrio seja determinado analiticamente é necessário utilizar um número de equações compatível com a quantidade de incógnitas do sistema, denominadas de graus de liberdade. Em um curso d\'água escoando sobre leito aluvionar não coesivo é possível admitir até quatro graus de liberdade, que são: a largura, a profundidade, a declividade e o traçado em planta do canal. Neste trabalho são apresentados alguns métodos que permitem a

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27

Cordier, Florian. "Morphodynamique des bancs dans des rivières aménagées à granulométrie étendue." Thesis, Paris Est, 2018. http://www.theses.fr/2018PESC1149/document.

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Les rivières présentent généralement un lit ondulé dû à la présence de bancs, qui correspondent à des larges dépôts sédimentaires alternant avec des zones profondes (mouilles). Des travaux d'ingénierie importants et répétés modifiant la géométrie du cours d'eau, le régime hydraulique et l'apport sédimentaire peuvent à terme modifier la dynamique des bancs à l'échelle de la rivière. Une meilleure compréhension des processus liés aux bancs est importante pour les gestionnaires des rivières, car les bancs contrôlent activement la morphologie du lit et érodent les berges, impactant la navigation,

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28

Warburton, J. "Alpine proglacial fluvial sediment transfer." Thesis, University of Southampton, 1989. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.234150.

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29

Costa, Samuel Barsanelli. "Modelo unidimensional preliminar de transporte de sedimentos para o reservatório Taiaçupeba." Universidade de São Paulo, 2018. http://www.teses.usp.br/teses/disponiveis/3/3147/tde-03052018-091135/.

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A modelagem unidimensional tem sido adotada desde os anos 1980, com sucesso nas práticas de engenharia, para a caracterização do regime de transporte de sedimentos de longo termo. É também uma importante ferramenta para o entendimento da dinâmica sedimentar de bacias e gestão de sedimentos em reservatórios. Esta pesquisa teve como objetivo aplicar a modelagem unidimensional de transporte de sedimentos na bacia do reservatório Taiaçupeba, São Paulo, Brasil, a partir do sistema computacional HEC-RAS, orientada à estimativa das descargas sólidas afluentes ao reservatório. O período de coleta de d

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Nascimento, Ana Paula do. "Estimativa da carga de lavagem transportada pelo rio Atibaia, SP." [s.n.], 2001. http://repositorio.unicamp.br/jspui/handle/REPOSIP/258292.

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Orientador : Evaldo Miranda Coiado<br>Dissertação (mestrado) - Universidade Estadual de Campinas, Faculdade de Engenharia Civil<br>Made available in DSpace on 2018-07-29T04:13:07Z (GMT). No. of bitstreams: 1 Nascimento_AnaPaulado_M.pdf: 11427794 bytes, checksum: 339e135a22b44b46b500bf87fef1c37b (MD5) Previous issue date: 2001<br>Resumo: Esta dissertação apresenta os resultados de uma investigação experimental visando estimar a carga de lavagem transportada numa seção do Rio Atibaia, SP. O período de coleta para análises iniciaram-se em março de 1993 a abril de 2000, tot31i7ando 171 campanhas

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Rodrigues, Maria Lucia Kolowski. "Origem, distribuição e mobilidade potencial de metais pesados em ambiente fluvial impactado por curtumes." reponame:Biblioteca Digital de Teses e Dissertações da UFRGS, 2007. http://hdl.handle.net/10183/12107.

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Neste estudo, avaliou-se a ocorrência de metais pesados em ambiente fluvial sob influência de curtumes - a bacia hidrográfica dos rios Cadeia e Feitoria (RS, Brasil), focalizando sua origem, distribuição e mobilidade potencial. Trimestralmente, entre julho/1999 e abril/2000, analisaram-se metais e parâmetros complementares em amostras de água e sedimento coletadas em dez locais. Após identificar os contaminantes e locais críticos (cromo e mercúrio, no trecho inferior do rio Feitoria), avaliaram-se também perfis sedimentares verticais e tecido muscular de peixes de fundo (Rineloricaria). As aná

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Jaballah, Mohamed. "Morphodynamique des bancs alternés d'une rivière de montagne aménagée." Thesis, Lyon 1, 2013. http://www.theses.fr/2013LYO10228/document.

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Ce travail porte sur la morphodynamique des bancs de galets alternés dans une rivière de montagne aménagée. Le site expérimental est un tronçon long de 8 km de la rivière Arc située dans les Alpes françaises. Une analyse des cartes historiques, des photos aériennes et des relevés topographiques montre que le lit de la rivière a évolué d’un style en tresse vers un lit rectiligne avec des bancs alternés contraints entre deux digues. Au milieu des années 1990, le lit de la rivière a été aplani pour former des profils trapézoïdaux. Cependant, les bancs alternés ont réapparu en moins de dixans. Une

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Bechtold, James Scott. "Fluvial sediment influences on floodplain soil biogeochemistry /." Thesis, Connect to this title online; UW restricted, 2007. http://hdl.handle.net/1773/5358.

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Stone, Michelle Susanne. "Depositional history and mineralisation of tertiary channel iron deposits at Yandi, Eastern Pilbara, Australia." University of Western Australia. School of Earth and Geographical Sciences, 2005. http://theses.library.uwa.edu.au/adt-WU2005.0082.

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[Truncated abstract] Detailed sedimentological, petrographical, geochemical and palynological studies have provided insight into the source rocks and the processes that operated during formation of the Tertiary Yandi channel iron deposit (CID) of the eastern Pilbara, Western Australia. Yandi is the largest and most valuable CID in the world, accounting for more than 2.5% of global iron production in 2003, and is the type-example of CID. The Yandi CID occupies the palaeo-Marillana Creek in the central Hamersley Ranges. It is near-coincident-with the modern Marillana Creek which incised Protero

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Santos, Mauricio Guerreiro Martinho dos. "Evolução dos sistemas fluviais através do tempo geológico: fácies sedimentares, arquitetura deposicional e estruturas de deformação sinsedimentar em exemplos do Torridonian, Bacia do Camaquã e Old Red Sandstone." Universidade de São Paulo, 2014. http://www.teses.usp.br/teses/disponiveis/44/44141/tde-10102014-085051/.

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Uma série de pesquisas realizadas em depósitos de sistemas fluviais, desenvolvidos anterior e concomitantemente à colonização dos continentes por vegetação, são aqui apresentadas com o intuito de investigar as principais características deposicionais destes sistemas, particularmente suas assembléias de fácies e elementos arquitetônicos preservados. Esta pesquisa busca, desta maneira, propor modelos deposicionais para sucessões fluviais pré-vegetação e contribuir para o avanço do conhecimento sobre as mudanças seculares em padrões de sedimentação, principalmente em relação à evolução dos rios a

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Ribeiro, Bruno Miguel Gomes. "Efeito das barragens no transporte sedimentar fluvial." Master's thesis, Universidade de Aveiro, 2009. http://hdl.handle.net/10773/2381.

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Mestrado em Engenharia Civil<br>Na dissertação apresentada procuram-se estudar os aspectos relacionados com a diminuição do transporte sedimentar fluvial, principalmente devido à construção de barragens. Este facto é importante no balanço sedimentar negativo e consequente erosão costeira que se regista no litoral Português. Assim, analisa-se o transporte sólido antes e após a construção de barragens em dois casos reais. No Rio Tejo, a construção de inúmeras barragens, provocou uma diminuição do transporte sólido em cerca de 70 %, ao passo que, no Rio Saru (Japão), por aplicação de diferentes f

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Ferreira, de Carvalho Rui Filipe. "Análisis multi-proxy paleoambiental y modelización de registros sedimentarios fluviales en los Alpes Suizos." Doctoral thesis, Universitat de Barcelona, 2014. http://hdl.handle.net/10803/287059.

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El estudio de sistemas fluviales mediante el análisis de testigos sedimentarios supone una oportunidad singular para comprender los patrones espaciales y temporales que rigen la dinámica de la agradación fluvial bajo la influencia de diferentes fuerzas motrices, como son la variabilidad climática o las actividades humanas. Los abanicos aluviales y deltas de los principales valles alpinos de modelado glaciar son importantes cubetas sedimentarias (Hinderer, 2001), que proporcionan registros sedimentarios de alta resolución por ser entornos relativamente estables (Schulte et al., 2008, 2009a).

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Kelsey, Adrian. "Modelling particle movement and sediment transport in rivers." Thesis, Lancaster University, 1993. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.386506.

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Phillips, John Mansell. "The effective particle size characteristics of fluvial suspended sediment." Thesis, University of Exeter, 1996. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.296287.

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40

Dogwiler, Toby J. "Fluvial disturbances in karst streams /." free to MU campus, to others for purchase, 2002. http://wwwlib.umi.com/cr/mo/fullcit?p3060093.

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41

Civitelli, Rosaria. "Caratterizzazione dei sedimenti fluviali della pianura Padana." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2012. http://amslaurea.unibo.it/2980/.

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Nel presente studio sono state eseguite analisi chimiche su sedimenti fluviali, prelevati in 233 siti rappresentativi, fra i corsi d'acqua che attraversano la pianura Padana. L'obbiettivo dello studio era di caratterizzare il sedimento e determinarne il suo stato di qualità. Parallelamente è stata effettuata, un'indagine sulle comunità di macroinvertebrati, fra alcuni degli affluenti di sinistra del Po e sul Po stesso. I sedimenti sono stati analizzati con uno spettrofotometro a fluorescenza a raggi x (XRF). I risultati ottenuti, durante le analisi e le elaborazioni cartografiche eseguite, ven

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Kirchner, André. "Rekonstruktion der spätpleistozänen und holozänen Landschaftsgenese im Guapi-Macacu Einzugsgebiet, Rio de Janeiro, Südostbrasilien." Doctoral thesis, Universitätsbibliothek Leipzig, 2014. http://nbn-resolving.de/urn:nbn:de:bsz:15-qucosa-147090.

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Südostbrasilien war während des Spätpleistozäns und des Holozäns beachtlichen Klimaschwankungen unterworfen, die vielfältige geoökologische Konsequenzen zur Folge hatten. Mit der europäischen Kolonialisierung setzte überdies ab dem frühen 16. Jahrhundert eine anthropogen verursachte Degradation ein, welche zu massiven Veränderungen des Landschaftssystems führte. Trotz einer längeren geowissenschaftlichen Forschungstradition in der Region ist der Kenntnisstand über die Auswirkungen der natürlichen und anthropogenen Veränderungen auf die Geomorphodynamik bis heute vergleichsweise gering. Bereits

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Adair, Susan Elizabeth. "Proglacial fluvial sediment transfer dynamics at Midre LoveÌnbreen, Svalbard." Thesis, Royal Holloway, University of London, 2003. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.404957.

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Ferreira, Manuela Pinheiro. "Geocronologia e proveniência dos sedimentos holocênicos da confluência dos rios Negro e Solimões, AM." Universidade de São Paulo, 2013. http://www.teses.usp.br/teses/disponiveis/44/44141/tde-14112013-102806/.

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O sistema fluvial amazônico representa a maior bacia de captação de sedimentos do mundo. Neste contexto, o objetivo deste estudo foi caracterizar as areias transportadas pelos rios Negro e Solimões e discriminar a contribuição do aporte sedimentar arenoso derivado destes dois rios para a formação do rio Amazonas. Além disso, buscou-se identificar variações temporais da geomorfologia fluvial da zona de confluência dos rios Negro e Solimões. Para tanto, foram utilizados métodos de análise geomorfológica e de fácies, granulometria, sensibilidade por luminescência opticamente estimulada (L

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Boucard, Linda. "Etude experimentale : valorisation de sediments fluviaux stabilises." Ecole Centrale de Lille, 2006. http://www.theses.fr/2006ECLI0002.

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Le transport fluvial est un enjeu majeur pour le développement des sociétés humaines. Il génère de l'emploi, désengorge le trafic routier et contribue au développement durable. L'envasement des voies navigables rend nécessaire et obligatoire leur entretien. L'absence de curage des sédiments accentue les risques d'inondation, entraîne une limitation du trafic fluvial allant jusqu'à l'inactivité complète de certaines voies d'eaux, provoquant des déviations et la baisse de la compétitivité pour un secteur entier. L'extraction des sédiments n'est pas systématique car elle soulève des problèmes d'o

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Schmelter, Mark L. "Applications of Bayesian Statistics in Fluvial Bed Load Transport." DigitalCommons@USU, 2013. http://digitalcommons.usu.edu/etd/1515.

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Fluvial sediment transport is a process that has long been important in managing water resources. While we intuitively recognize that increased flow amounts to increased sediment discharge, there is still significant uncertainty in the details. Because sediment transport---and in the context of this dissertation, bed load transport---is a strongly nonlinear process that is usually modeled using empirical or semi-empirical equations, there exists a large amount of uncertainty around model parameters, predictions, and model suitability. The focus of this dissertation is to develop and demonstrat

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Assaker, Aurore. "Hydrologie et biogéochimie du bassin versant du fleuve Ibrahim : Un observatoire du fonctionnement de la zone critique au Liban." Thesis, Toulouse, INPT, 2016. http://www.theses.fr/2016INPT0009/document.

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Cette thèse constitue une étude de référence sur la qualité des ressources hydriques du bassin versant du fleuve Ibrahim au Liban, notamment avant la construction d’un grand barrage (Jannah). Pour ce faire, 7 stations (NI7 à NI1) ont été sélectionnées de l’amont vers l’aval sur l’Ibrahim et ses sources karstiques. L’ensemble des sept sous bassins a été caractérisé d’un point de vue hydroclimatologie et états de surface (sols, végétation, cultures, géologie, relief). Les débits mesurés à l’amont (2 stations) et à l’aval (1 station) nous ont permis de reconstituer les débits des autres stations

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Costa, Kassius Vinissius de Morais. "Parâmetros hidrossedimentológicos da bacia hidrográfica do São José, no Cariri cearense." reponame:Repositório Institucional da UFC, 2013. http://www.repositorio.ufc.br/handle/riufc/18619.

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COSTA, Kassius Vinissius de Morais. Parâmetros hidrossedimentológicos da bacia hidrográfica do São José, no Cariri cearense. 2013. 103 f. Dissertação (Mestrado em engenharia agrícola)- Universidade Federal do Ceará, Fortaleza-CE, 2013.<br>Submitted by Elineudson Ribeiro (elineudsonr@gmail.com) on 2016-06-24T17:22:39Z No. of bitstreams: 1 2013_dis_kvmcosta.pdf: 4699170 bytes, checksum: b38622d32b7063f4ee60f9622a7b3d7e (MD5)<br>Approved for entry into archive by José Jairo Viana de Sousa (jairo@ufc.br) on 2016-07-21T20:17:34Z (GMT) No. of bitstreams: 1 2013_dis_kvmcosta.pdf: 4699170 bytes, check

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Gran, Karen Bobbitt. "Fluvial recovery following basin-wide sediment loading at Mount Pinatubo, Philippines /." Thesis, Connect to this title online; UW restricted, 2005. http://hdl.handle.net/1773/6717.

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Roddan, Bruce Harrison. "Two prototype fluvial suspended sediment samplers evaluated in an instream flume." Thesis, University of British Columbia, 2008. http://hdl.handle.net/2429/5312.

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Fluvial suspended sediment (FSS) is a measured physical component of hydrologic and environmental watershed studies. A variety of tools and strategies are employed to collect a FSS sample that is representative of the source water FSS. The discrete point-in-time automatic fixed speed pump sampler (DPS) is a commonly used tool in FSS studies. During May-October 2006, two prototype FSS samplers, a time integrated passive sampler (TIPS) and a continuous flow proportional variable speed pump sampler (CPS), were evaluated using an instream flume and a DPS sampler, placed in a small, low energy, sec

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