Download or read book Sediment Fluxes in Coastal Areas written by Mohamed Maanan and published by Springer. This book was released on 2014-10-28 with total page 236 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents a detailed analysis and synthesis of the processes affecting sediments fluxes from watershed to worldwide coastal systems. The volume provides a comprehensive overview and constitutes a systematic description of the response of coastal systems to global and local changes, like climate change, sea level, land use and land cover change. The case studies cover a sequence of coastal environments such as lagoons, bays, estuaries, deltas and beaches. Sediment Fluxes in Coastal Areas is designed for researchers, professionals and for course-use in hydrology, oceanography, geography, geology, geomorphology and environmental science.
Download or read book Coastal Fluxes in the Anthropocene written by Christopher J. Crossland and published by Springer Science & Business Media. This book was released on 2005-10-24 with total page 244 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book synthesizes knowledge of coastal and riverine material fluxes, biogeochemical processes and indications of change, both natural, and increasingly human-initiated. Here, the authors assess coastal flux in the past and present, and in future under the International Geosphere-Biosphere Programme (IGBP), the International Human Dimensions Programme on Global Environmental Change (IHDP) and the LOICZ II (Land-Ocean Interactions in the Coastal Zone) Project.
Download or read book Modeling and Practice of Erosion and Sediment Transport under Change written by Mohamed Meddi and published by MDPI. This book was released on 2019-09-17 with total page 212 pages. Available in PDF, EPUB and Kindle. Book excerpt: Climate and anthropogenic changes impact the conditions of erosion and sediment transport in rivers. Rainfall variability and, in many places, the increase of rainfall intensity have a direct impact on rainfall erosivity. Increasing changes in demography have led to the acceleration of land cover changes in natural areas, as well as in cultivated areas, and, sometimes, in degraded areas and desertified landscapes. These anthropogenized landscapes are more sensitive to erosion. On the other hand, the increase in the number of dams in watersheds traps a great portion of sediment fluxes, which do not reach the sea in the same amount, nor at the same quality, with consequences on coastal geomorphodynamics. This book is dedicated to studies on sediment fluxes from continental areas to coastal areas, as well as observation, modeling, and impact analysis at different scales from watershed slopes to the outputs of large river basins. This book is concentrated on a number of keywords: “erosion” and “sediment transport”, “model” and “practice”, and “change”. The keywords are briefly discussed with respect to the relevant literature. The contributions in this book address observations and models based on laboratory and field data, allowing researchers to make use of such resources in practice under changing conditions.
Download or read book Experimental Study of Sediment Fluxes on Barcelona s Nearshore written by Carla Armengou Gallardo and published by . This book was released on 2011 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The presence of suspended sediment in marine waters has several impacts, such as a degradation of the coastal ecosystem, pollution or a damaging effect on the tourism-oriented economies. FIELD_AC is a European project that aims to provide an improved operational service for coastal areas and generate added value for GMES predictions. This is achieved by the analysis of field cases. In this context, this minor thesis is based on the study of the information obtained in a field campaign carried out on Barcelona's near shore between November of 2010 and January of 2011. The data studied in this minor thesis was acquired in two different deployments: A1 and A2, located at 24 m depth in front of the combined sewer overflow of Bogallet and in front of the Besós river mouth respectively. These deployments consisted of a concrete structure provided with an AWAC current profiler, able to measure current velocities and wave parameters, and two different SSC sensors: a turbidimeter and an optical backscatter. In the first place, a quality control of the measurements provided by the instruments is done in order to verify its validity in relation to each instrument measuring range and in relation to the expected behaviour for each parameter. The only instruments that show problems with the validity of the measurements are the turbidimeters and the optical devices. Data acquired until the 8th of December shows optimal reliability. From that date until the 5th of January, turbidity data suffers a decrease of reliability and from the 5th of January onward, turbidity measurements are not valid, as the behaviours observed cannot be explained by natural processes. In the second place, the validated data is studied. Including meteorological conditions (wind, atmospheric pressure and rainfall), sea level, wave climate (significant wave height, maximum wave height, period and direction), currents and continental inputs (combined sewer overflow spills and river discharges). These parameters are the driving forces that control sediment transport processes. In the third place, sediment fluxes, current shear stress, wave shear stress and critical conditions for resuspension are calculated and significant SSC increase events are identified. Finally, each turbidity increase event is studied thoroughly in order to establish the agents responsible for the presence of sediment in the water column. Three agents are observed to have the capability of incorporating sediment to the water column in Barcelona's near shore: waves, currents and offshore fluxes of continental inputs.
Download or read book Mitigating Shore Erosion Along Sheltered Coasts written by National Research Council and published by National Academies Press. This book was released on 2007-05-04 with total page 189 pages. Available in PDF, EPUB and Kindle. Book excerpt: Like ocean beaches, sheltered coastal areas experience land loss from erosion and sea level rise. In response, property owners often install hard structures such as bulkheads as a way to prevent further erosion, but these structures cause changes in the coastal environment that alter landscapes, reduce public access and recreational opportunities, diminish natural habitats, and harm species that depend on these habitats for shelter and food. Mitigating Shore Erosion Along Sheltered Coasts recommends coastal planning efforts and permitting policies to encourage landowners to use erosion control alternatives that help retain the natural features of coastal shorelines.
Download or read book Sediment Flux to Basins written by Stuart J. Jones and published by Geological Society of London. This book was released on 2002 with total page 294 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Sediment Water Interactions written by B.T. Hart and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 733 pages. Available in PDF, EPUB and Kindle. Book excerpt: The papers appearing in this volume reflect the current attention in sediment/water science to five main topics of investigation: Sediment dynamics in estuaries, coastal waters, lakes, reservoirs and rivers; Sediment-associated biological processes; Contaminant accumulation, distribution and geochemistry; Fluxes from sediments; and Element cycling. Contributors address sediment/water interactions related to both fresh and salt water conditions.
Download or read book Chapter Impacted Fluvial and Coastal Sediment Connectivity in the Mediterranean a Brief Review and Implications in the Context of Global Environmental Change written by and published by . This book was released on 2022 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Sediment deficits on Mediterranean coasts have resulted from anthropogenic fragmentation of rivers and loss of sediment flux connectivity caused by dams, river engineering, and aggregate extraction. Coastal sediment transport cells are now characterized by artificial boundaries that impair alongshore sediment connectivity. Climate change and sea-level rise will cause further vulnerability of the Mediterranean's fragmented rivers and coasts and there is, therefore, an urgent need to foster efforts aimed at re-establishing fluvial and alongshore sediment connectivity.
Download or read book Land Ocean Interaction written by D. Huntley and published by IWA Publishing. This book was released on 2000-12-01 with total page 299 pages. Available in PDF, EPUB and Kindle. Book excerpt: The UK Land-Ocean Interaction Study (LOIS) provided a major opportunity to measure and model the processes controlling the fluxes of materials between river basins and coastal seas. The main programme of research took place between 1992 and 1998, funded by the UK Natural Environment Research Council, and involved approximately 360 coastal researchers contributing to more than 70 collaborative projects. This book presents accessible summaries of key results of this research. The ten chapters of the book are written by leading contributors to the programme, and cover aspects of the physical, sedimentological, chemical and biological processes controlling fluxes between river catchments and coastal seas in temporate environments. Major overarching themes for all of the chapters include the persistence, storage, degradation and transport of pollutants from catchment to coastal sea, and an emphasis on the relevance of research for river and coastal water quality management. The chapters also describe a number of important technological advances in the measurement of processes and longer term monitoring of the fluvial, estuarine and coastal environments. Approaches to monitoring were also transferred between disciplines, in many cases for the first time. The rivers and coastal programme of LOIS was unique in its scale and inter-disciplinarity and its results are of lasting value. This book provides a useful and important summary of many of its results and an effective introduction to the research for those who want to delve more deeply into the data and published papers. It will be of interest to scientists, environmental managers and scientific policy makers. Contents Background and Context of the Programme River and Estuary Management Issues in the Humber Catchment Suspended Sediment Fluxes from River Basins River Chemistry Modelling of Large-Scale River Basins Tidal Reaches Estuarine Sediments The Intertidal Zone The Holderness Coast Estuarine Chemistry
Download or read book Estuarine and Coastal Hydrography and Sediment Transport written by R. J. Uncles and published by Cambridge University Press. This book was released on 2017-08-17 with total page 363 pages. Available in PDF, EPUB and Kindle. Book excerpt: A practical guide to the latest techniques to measure sediments, seabed, water and transport mechanisms in estuaries and coastal waters. Covering a broad range of topics, enough background is included to explain how each technology functions. A review of recent fieldwork experiments demonstrates how modern methods apply in real-life scenarios.
Download or read book Biogeochemical Dynamics at Major River Coastal Interfaces written by Thomas Bianchi and published by Cambridge University Press. This book was released on 2014 with total page 673 pages. Available in PDF, EPUB and Kindle. Book excerpt: A comprehensive, state-of-the-art synthesis of biogeochemical dynamics and the impact of human alterations at major river-coastal interfaces for advanced students and researchers.
Download or read book River Discharge to the Coastal Ocean written by John D. Milliman and published by Cambridge University Press. This book was released on 2013-03-28 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Rivers provide the primary link between land and sea. Utilizing the world's largest database, this book presents a detailed analysis and synthesis of the processes affecting fluvial discharge of water, sediment and dissolved solids. The ways in which climatic variation, episodic events, and anthropogenic activities - past, present and future - affect the quantity and quality of river discharge are discussed in the final two chapters. The book contains 26 tables and more than 165 figures - many in full color - including global and regional maps. The book's extensive appendix presents the 1534-river database as a series of 44 tables and 132 maps that provide quantitative data regarding the discharge of water, sediment and dissolved solids. The complete database is also presented within a GIS-based package available online at www.cambridge.org/milliman. River Discharge to the Coastal Ocean provides an invaluable resource for researchers, professionals and graduate students in hydrology, oceanography, geology, geomorphology and environmental policy.
Download or read book The Effects of Woody Debris on Sediment Fluxes in Small Coastal Stream Channels written by P. R. Commandeur and published by . This book was released on 1997-01 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt: Describes research on two first-order streams on the British Columbia south coast which were studied to determine the role of woody debris in controlling the routing and storage of sediment within high-gradient channels in logged areas. Two similar channels were selected, one with slash removed from the channel prior to the start of the experiment, and the other a control channel with no modification following harvest. Two methods were used to quantify sediment movement and changes in sediment storage in the control and treated channels: cross-sectional channel profiles and bedload tracers. Sediment outputs were measured using a combination sediment box and weir installed at the downstream limit of each test reach. Potential sources of sediment were also identified. By employing a sediment budget approach, an attempt is made to quantify inputs, outputs, and changes in storage in the test channels.
Download or read book Modeling and Practice of Erosion and Sediment Transport Under Change written by Mohamed Meddi and published by . This book was released on 2019 with total page 1 pages. Available in PDF, EPUB and Kindle. Book excerpt: Climate and anthropogenic changes impact the conditions of erosion and sediment transport in rivers. Rainfall variability and, in many places, the increase of rainfall intensity have a direct impact on rainfall erosivity. Increasing changes in demography have led to the acceleration of land cover changes in natural areas, as well as in cultivated areas, and, sometimes, in degraded areas and desertified landscapes. These anthropogenized landscapes are more sensitive to erosion. On the other hand, the increase in the number of dams in watersheds traps a great portion of sediment fluxes, which do not reach the sea in the same amount, nor at the same quality, with consequences on coastal geomorphodynamics. This book is dedicated to studies on sediment fluxes from continental areas to coastal areas, as well as observation, modeling, and impact analysis at different scales from watershed slopes to the outputs of large river basins. This book is concentrated on a number of keywords: "erosion" and "sediment transport", "model" and "practice", and "change". The keywords are briefly discussed with respect to the relevant literature. The contributions in this book address observations and models based on laboratory and field data, allowing researchers to make use of such resources in practice under changing conditions.
Download or read book Source to Sink Fluxes in Undisturbed Cold Environments written by Achim A. Beylich and published by Cambridge University Press. This book was released on 2016-07-07 with total page 421 pages. Available in PDF, EPUB and Kindle. Book excerpt: Amplified climate change and ecological sensitivity of polar and cold climate environments are key global environment issues. Understanding how projected climate change will alter surface environments in these regions is only possible when present day source-to-sink fluxes can be quantified. The book provides the first global synthesis and integrated analysis of environmental drivers and quantitative rates of solute and sedimentary fluxes in cold environments, and the likely impact of projected climate change. The focus on largely undisturbed cold environments allows ongoing climate change effects to be detected and, moreover, distinguished from anthropogenic impacts. A novel approach for co-ordinated and integrative process geomorphic research is introduced to enable better comparison between studies. This highly topical and multidisciplinary book, which includes case studies covering Arctic, Antarctic, and alpine environments, will be of interest to graduate students and researchers in the fields of geomorphology, sedimentology and global environmental change.
Download or read book Sediment Transport in Coastal Waters written by Sylvain Ouillon and published by MDPI. This book was released on 2019-04-11 with total page 284 pages. Available in PDF, EPUB and Kindle. Book excerpt: The interface of 440,000 km long coastline in the world is subject to global change, with an increasing human pressure (land use, buildings, sand mining, dredging) and increasing population. Improving our knowledge on involved mechanisms and sediment transport processes, monitoring the evolution of sedimentary stocks and anticipating changes in littoral and coastal zones is essential for this purpose. The special issue of Water on “Sediment transport in coastal waters” gathers thirteen papers which introduce the current revolution in the scientific research related to coastal and littoral hydrosedimentary dynamics, and reflect the diversity of concerns on which research in coastal sediment transport is based, and current trends — topics and preferred methods — to address them.
Download or read book Coastal Dynamics 2005 written by Augustín Sánchez-Arcilla and published by . This book was released on 2006 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
