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Turbulent open channel flow, sediment erosion and sediment transport

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Book Series: Dissertationsreihe am Institut für Hydromechanik des Karlsruher Instituts für Technologie / Karlsruher Institut für Technologie (KIT), Institut für Hydromechanik ISSN: 14394111 ISBN: 9783866449008 Year: Volume: 2012,1 Pages: XXXII, 154 p. DOI: 10.5445/KSP/1000029253 Language: ENGLISH
Publisher: KIT Scientific Publishing
Subject: General and Civil Engineering
Added to DOAB on : 2019-07-30 20:01:58
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This thesis aims to contribute to a better understanding of turbulent open channel flow, sediment erosion and sediment transport. The thesis provides an analysis of high-fidelity data from direct numerical simulation of (i) open channel flow over an array of fixed spheres, (ii) open channel flow with mobile eroding spheres, (iii) open channel flow with sediment transport of many mobile spheres. An immersed boundary method is used to resolve the finite-size particles.

Untersuchungen zur Feinsedimentdynamik unter Turbulenzeinfluss

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Book Series: Dissertationsreihe am Institut für Hydromechanik der Universität Karlsruhe / Universität Karlsruhe (TH), Institut für Hydromechanik ISSN: 14394111 ISBN: 9783866442054 Year: Volume: 2007/2 Pages: VI, 129 p. DOI: 10.5445/KSP/1000007360 Language: GERMAN
Publisher: KIT Scientific Publishing
Subject: General and Civil Engineering
Added to DOAB on : 2019-07-30 20:02:00
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In der vorliegenden Arbeit wurde mit der Entwicklung einer differentiellen Turbulenzsäule das advektionsfreie Turbulenzprofil einer offenen Gerinneströmung im Labor nachgebildet. Hierin konnten die Prozesse der Feinsedimentdynamik nachgebildet und gemessen werden. Die Ergebnisse beschreiben den Prozessablauf in der Feinsedimentdynamik und dienten als Grundlage für die Entwicklung und Validierung eines Modells zur Bilanzierung der Feinsedimentdynamik in der Wassersäule.

Using Paleolimnology for Lake Restoration and Management

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Book Series: Frontiers Research Topics ISSN: 16648714 ISBN: 9782889450916 Year: Pages: 159 DOI: 10.3389/978-2-88945-091-6 Language: English
Publisher: Frontiers Media SA
Subject: Ecology --- Science (General)
Added to DOAB on : 2017-07-06 13:27:36
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This e-book presents state-of-the-art research projects and opinions on using paleolimnology for lake restoration and managment. It illustrates the general idea that proposing adequate restoration and managment solutions must be based on the past. Knowing the natural and anthropic variations a water body went through defines the best ways for maintaining or restoring an ecosystem. By quantifying baseline conditions, paleolimnology provides a definite plan for restoration and management. This cannot be achieved without studying the past.

Restaurer les milieux et prévenir les inondations grâce au génie végétal

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ISBN: 9782759227785 Year: Pages: 116 DOI: 10.35690/978-2-7592-2778-5 Language: French
Publisher: éditions Quae
Subject: Agriculture (General)
Added to DOAB on : 2019-11-10 11:21:05
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Public policies in France and in Europe obligate decision makers to consider an integrated management of habitats and territories that combines several benefits. This book provides innovative vegetation engineering solutions for reconciling habitat restoration with flood prevention.

Keywords

flood --- ecology --- watershed --- natural risk --- vegetation --- sediment --- mountain --- erosion

Suivi des impacts de l’extraction de granulats marins : Synthèse des connaissances 2012 (GIS SIEGMA)

Authors: ---
ISBN: 9791024010458 Year: DOI: 10.4000/books.purh.809 Language: French
Publisher: Presses universitaires de Rouen et du Havre
Added to DOAB on : 2019-12-06 13:15:49
License: OpenEdition Licence for Books

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Ce document vise à faire un état d'avancement des connaissances scientifiques acquises sur les impacts des extractions de granulats marins sur les différents compartiments du milieu naturel fin 2012, soit 9 ans après le début des travaux du Groupement d'intérêt scientifique SIEGMA (Suivi des Impacts de l'extraction de granulats marins). Cette synthèse intègre les connaissances à l'échelle internationale (ICES WGEXT, COST Action 638 « MAGGNET ») et met en lumière les principaux résultats en cours d'acquisition sur les sites normands de Manche orientale dans le cadre de ce programme d'étude.

Experiences with beach nourishments on the coast of Alicante, Spain (Book chapter)

Book title: Eighth International Symposium “Monitoring of Mediterranean Coastal Areas. Problems and Measurement Techniques”

Authors: --- --- --- --- et al.
Book Series: Proceedings e report ISSN: 27045846 ISBN: 9788855181471 Year: Volume: 126 DOI: 10.36253/978-88-5518-147-1.44
Publisher: Firenze University Press
Subject: Forestry
Added to DOAB on : 2020-11-26 11:35:25
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The historical evolution of sandy beaches on the coast of Alicante (Spain) has been analysed from aerial images from 1956 to 2019. The beach nourishments carried out in the 1990s to avoid coastal damages and to improve the touristic offer were studied. Shoreline evolution and beach surface has been obtained using GIS. The change of the sediment composition, from gravel to sand, due to the fills has caused a relevant imbalance. Beach nourishments failed its main aim of avoiding the shoreline erosion, causing environmental damages to the nearby Posidonia oceanica meadows.

Impact of cliff erosion on marine sediment composition - indication of local coastline evolution (Vrgada Island, Croatia) (Book chapter)

Book title: Eighth International Symposium “Monitoring of Mediterranean Coastal Areas. Problems and Measurement Techniques”

Authors: ---
Book Series: Proceedings e report ISSN: 27045846 ISBN: 9788855181471 Year: Volume: 126 DOI: 10.36253/978-88-5518-147-1.46
Publisher: Firenze University Press
Subject: Forestry
Added to DOAB on : 2020-11-26 11:35:25
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Erosive coastal cliffs formed in soft-rocks sediments along the generally carbonaceous Eastern Adriatic are a rare feature. The one from the Vrgada Island gave rise to the idea that local seabed surface sediment may reflect the composition of the cliff sediment. First results of sedimentological analyses showed that sediment samples collected on both sides of the cliff contain material eroded mostly from the eastern side of the cliff. Subsequent longshore drift caused by dominant waves likely sort fallen material, transporting its finer fractions to the northern side and further into the sea.

Deep Subsurface Microbiology

Authors: --- --- ---
Book Series: Frontiers Research Topics ISSN: 16648714 ISBN: 9782889195367 Year: Pages: 303 DOI: 10.3389/978-2-88919-536-7 Language: English
Publisher: Frontiers Media SA
Subject: Microbiology --- Science (General)
Added to DOAB on : 2016-01-19 14:05:46
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Deep subsurface microbiology is a highly active and rapidly advancing research field at the interface of microbiology and the geosciences; it focuses on the detection, identification, quantification, cultivation and activity measurements of bacteria, archaea and eukaryotes that permeate the subsurface biosphere of deep marine sediments and the basaltic ocean and continental crust. The deep subsurface biosphere abounds with uncultured, only recently discovered and – at best - incompletely understood microbial populations. In spatial extent and volume, Earth’s subsurface biosphere is only rivaled by the deep sea water column. So far, no deep subsurface sediment has been found that is entirely devoid of microbial life; microbial cells and DNA remain detectable at sediment depths of more than 1 km; microbial life permeates deeply buried hydrocarbon reservoirs, and is also found several kilometers down in continental crust aquifers. Severe energy limitation, either as electron acceptor or donor shortage, and scarcity of microbially degradable organic carbon sources are among the evolutionary pressures that have shaped the genomic and physiological repertoire of the deep subsurface biosphere. Its biogeochemical role as long-term organic carbon repository, inorganic electron and energy source, and subduction recycling engine continues to be explored by current research at the interface of microbiology, geochemistry and biosphere/geosphere evolution. This Research Topic addresses some of the central research questions about deep subsurface microbiology and biogeochemistry: phylogenetic and physiological microbial diversity in the deep subsurface; microbial activity and survival strategies in severely energy-limited subsurface habitats; microbial activity as reflected in process rates and gene expression patterns; biogeographic isolation and connectivity in deep subsurface microbial communities; the ecological standing of subsurface biospheres in comparison to the surface biosphere – an independently flourishing biosphere, or mere survivors that tolerate burial (along with organic carbon compounds), or a combination of both? Advancing these questions on Earth’s deep subsurface biosphere redefines the habitat range, environmental tolerance, activity and diversity of microbial life.

Selected Papers from the 14th Estuarine and Coastal Modeling Conference

ISBN: 9783038423621 9783038423638 Year: Pages: VIII, 412 Language: English
Publisher: MDPI - Multidisciplinary Digital Publishing Institute
Subject: Hydraulic Engineering
Added to DOAB on : 2017-04-18 12:12:22
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The 14th Estuarine and Coastal Modeling Conference provided a venue for commercial, academic, and government scientists and engineers from around the world to present and discuss the latest results and techniques in applied estuarine and coastal modeling. Prospective authors were invited to submit papers on a wide range of topic areas, including:Coastal ResiliencyPollutant Transport and Water Quality PredictionModeling Techniques and Sensitivity StudiesModel AssessmentModeling Specific Estuarine and Coastal SystemsModel Output Visualization and Analysis TechniquesWave and Sediment Transport ModelingModeling of Chemicals and FloatablesOil Spill Transport and Fate ModelingInverse MethodsFacility Siting and CSO StudiesData Assimilation TechniquesNowcast/Forecast Modeling SystemsCoupled Models of Terrestrial, Atmospheric, Coastal SystemsModeling Systems with Strong Buoyancy ForcingRisk AnalysisThis Special Issue presents a selection of papers from the conference; the papers give insight, both into current research and commercial developments, and highlight areas where further research or engineering studies are required.

Advances in Environmental Engineering

Authors: ---
ISBN: 9783038970019 9783038970026 Year: Pages: X, 150 Language: english
Publisher: MDPI - Multidisciplinary Digital Publishing Institute
Subject: Environmental Sciences --- Environmental Engineering
Added to DOAB on : 2018-08-09 15:36:59
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The book presents research papers addressing a wide range of environmental topics: water and wastewater treatment and management, soil degradation and conservation, sediment pollution control, environmental impacts of technologies, life cycle analysis (LCA), air quality and indoor environment, and advanced environmental materials. The contributions provide novel and significant scientific results and advanced applications in the field of environmental engineering and provide an integrated view of the trends in solving the problems associated with the achievement of sustainability.

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