Download or read book Sediment Dynamics for a Changing Future written by Kazimierz Banasik and published by . This book was released on 2010 with total page 454 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Impact of Global Change on Erosion and Sediment Transport by Rivers written by Desmond E. Walling and published by UNESCO. This book was released on 2009 with total page 30 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Altered Hydrological and Sediment Dynamics in High alpine Areas written by Lena Katharina Schmidt and published by . This book was released on 2023 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Climate change fundamentally transforms glaciated high-alpine regions, with well-known cryospheric and hydrological implications, such as accelerating glacier retreat, transiently increased runoff, longer snow-free periods and more frequent and intense summer rainstorms. These changes affect the availability and transport of sediments in high alpine areas by altering the interaction and intensity of different erosion processes and catchment properties. Gaining insight into the future alterations in suspended sediment transport by high alpine streams is crucial, given its wide-ranging implications, e.g. for flood damage potential, flood hazard in downstream river reaches, hydropower production, riverine ecology and water quality. However, the current understanding of how climate change will impact suspended sediment dynamics in these high alpine regions is limited. For one, this is due to the scarcity of measurement time series that are long enough to e.g. infer trends. On the other hand, it is difficult - if not impossible - to ...
Download or read book Climate induced Trends in Global Riverine Water Discharge and Suspended Sediment Dynamics in the 21st Century written by Nishani Poorna Moragoda and published by . This book was released on 2019 with total page 100 pages. Available in PDF, EPUB and Kindle. Book excerpt: Anthropogenic climate change, particularly through increased greenhouse gas (GHG) emissions, is projected to considerably impact 21st century precipitation distribution, altering fluvial processes such as sediment dynamics and riverine water discharge, worldwide. Changes in the magnitude of fluvial water and sediment fluxes can have profound impacts on the functioning and connectivity of earth's natural systems. This study is focused on isolating the impacts of GHG-induced future climate change on riverine water discharge and suspended sediment fluxes in the 21st century at a global scale. A global-scale hydro-geomorphic model (WBMsed) was forced with precipitation and temperature projections generated from five General Circulation Models (GCMs), each driven by four Representative Concentration Pathways (RCPs). The results, based on an ensemble of model outputs, revealed that global river discharge and sediment dynamics are considerably impacted by anthropogenic climate change in the 21st century. Despite substantial regional heterogeneity, a global net increase is projected for both river discharge and sediment flux in the 21st century under all RCP scenarios. Increases are larger and more variable with increasing levels of GHG concentrations in the atmosphere. At the end of this century, climate change under RCP 2.6 is projected to cause approximately 1% increase in global river discharge and 5% increase in global suspended sediment flux. Under RCP 4.5 emission scenario, climate change will lead to a 5.6% increase in river discharge and 7% increase in sediment flux at a global scale. Approximately 5% and 9% increases are projected under RCP 6.0 in global river discharge and sediment flux respectively. Climate changes projected under RCP 8.5 will lead to the largest increases in river discharge and sediment flux (7.3% and 14.7% respectively) at the end of the 21st century. With increased warming, more extreme changes (increasing or decreasing) can be expected in both discharge and sediment flux. Also, the number of rivers with statistically significant trends in either direction increases with warming. In addition to magnitudes, inter-annual variability in both global river discharge and sediment fluxes also increase with increasing RCPs. Changes in sediment flux closely follow the patterns predicted for discharge, and are mostly driven by climate warming induced spatial and temporal variation in precipitation. However, the relationship between discharge and sediment flux was found to be non-linear both in space and time, demonstrating the utility of explicit modeling of both hydrology and geomorphology.
Download or read book Sediment Dynamics and Pollutant Mobility in Rivers written by Bernd Westrich and published by Springer Science & Business Media. This book was released on 2007-10-11 with total page 463 pages. Available in PDF, EPUB and Kindle. Book excerpt: This is the first interdisciplinary book on the mobilization of nutrients and pollutants in the water phase due to hydrodynamic processes. Coverage includes the formation of aggregates in turbulent water; flocks and biofilms from organic reactions; and the formation of new surfaces for re-adsorption of dissolved pollutants. The book gathers papers resulting from an International Symposium on Sediment Dynamics and Pollutant Mobility in River Basins in Hamburg, Germany, March, 2006.
Download or read book Sediment Dynamics in Changing Environments written by IAHS International Commission on Continental Erosion. Symposium and published by Iahs Press. This book was released on 2008 with total page 644 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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 Riverine Ecosystem Management written by Stefan Schmutz and published by Springer. This book was released on 2018-05-08 with total page 562 pages. Available in PDF, EPUB and Kindle. Book excerpt: This open access book surveys the frontier of scientific river research and provides examples to guide management towards a sustainable future of riverine ecosystems. Principal structures and functions of the biogeosphere of rivers are explained; key threats are identified, and effective solutions for restoration and mitigation are provided. Rivers are among the most threatened ecosystems of the world. They increasingly suffer from pollution, water abstraction, river channelisation and damming. Fundamental knowledge of ecosystem structure and function is necessary to understand how human acitivities interfere with natural processes and which interventions are feasible to rectify this. Modern water legislation strives for sustainable water resource management and protection of important habitats and species. However, decision makers would benefit from more profound understanding of ecosystem degradation processes and of innovative methodologies and tools for efficient mitigation and restoration. The book provides best-practice examples of sustainable river management from on-site studies, European-wide analyses and case studies from other parts of the world. This book will be of interest to researchers in the field of aquatic ecology, river system functioning, conservation and restoration, to postgraduate students, to institutions involved in water management, and to water related industries.
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 Sediment Dynamics of Chinese Muddy Coasts and Estuaries written by Xiao Hua Wang and published by Academic Press. This book was released on 2018-10-24 with total page 159 pages. Available in PDF, EPUB and Kindle. Book excerpt: Sediment Dynamics of Chinese Muddy Coasts and Estuaries: Physics, Biology and Their Interactions provides a forum for the latest research addressing the physics, sedimentary processes, biology, chemistry and ecological processes associated with these rapidly changing estuarine and coastal environments. The book explores the challenges and opportunities for future research in China’s estuaries and coastal waters around the world, and uses China as a case study to provide answers to the causes of, and possible solutions to, these problems, presenting methodologies on working with observation and modelling analysis. China’s coastal zone is facing many urgent issues in the environmental degradation and sustainable use of its marine resources. This book reviews and synthesizes papers from international research communities, including those from China, to exemplify and document their scientific approaches to manage and recover coastal ecological functions. Presents spatio-temporal processes and multivariate dynamic modelling Includes physical and biological feedback, along with marine ecosystem observation and modeling Features multidisciplinary methodological approaches Includes important information on the effects of climate change to the coasts and estuaries of China
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 Sediment Transport written by Faruk Bhuiyan and published by BoD – Books on Demand. This book was released on 2011-10-26 with total page 274 pages. Available in PDF, EPUB and Kindle. Book excerpt: The purpose of this book is to put together recent developments on sediment transport and morphological processes. There are twelve chapters in this book contributed by different authors who are currently involved in relevant research. First three chapters provide information on basic and advanced flow mechanisms including turbulence and movement of particles in water. Examples of computational procedures for sediment transport and morphological changes are given in the next five chapters. These include empirical predictions and numerical computations. Chapters nine and ten present some insights on environmental concerns with sediment transport. Last two contributions deal with two large-scale case studies related to changes in the transport and provenance of glacial marine sediments, and processes involving land slides.
Download or read book Sandy Beach Morphodynamics written by Derek Jackson and published by Elsevier. This book was released on 2020-06-03 with total page 814 pages. Available in PDF, EPUB and Kindle. Book excerpt: Sandy beaches represent some of the most dynamic environments on Earth and examining their morphodynamic behaviour over different temporal and spatial scales is challenging, relying on multidisciplinary approaches and techniques. Sandy Beach Morphodynamics brings together the latest research on beach systems and their morphodynamics and the ways in which they are studied in 29 chapters that review the full spectrum of beach morphodynamics. The chapters are written by leading experts in the field and provide introductory level understanding of physical processes and resulting landforms, along with more advanced discussions. Includes chapters that are written by the world's leading experts, including the latest up-to-date thinking on a variety of subject areas Covers state-of-the-art techniques, bringing the reader the latest technologies/methods being used to understand beach systems Presents a clear-and-concise description of processes and techniques that enables a clear understanding of coastal processes
Download or read book River Dynamics written by Bruce L. Rhoads and published by Cambridge University Press. This book was released on 2020-04-29 with total page 544 pages. Available in PDF, EPUB and Kindle. Book excerpt: Rivers are important agents of change that shape the Earth's surface and evolve through time in response to fluctuations in climate and other environmental conditions. They are fundamental in landscape development, and essential for water supply, irrigation, and transportation. This book provides a comprehensive overview of the geomorphological processes that shape rivers and that produce change in the form of rivers. It explores how the dynamics of rivers are being affected by anthropogenic change, including climate change, dam construction, and modification of rivers for flood control and land drainage. It discusses how concern about environmental degradation of rivers has led to the emergence of management strategies to restore and naturalize these systems, and how river management techniques work best when coordinated with the natural dynamics of rivers. This textbook provides an excellent resource for students, researchers, and professionals in fluvial geomorphology, hydrology, river science, and environmental policy.
Download or read book Large scale Floodplain Sediment Dynamics in the Mekong Delta written by and published by . This book was released on 2014 with total page 95 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Mekong Delta (MD) sustains the livelihood and food security of millions of people in Vietnam and Cambodia. It is known as the "rice bowl" of South East Asia and has one of the world's most productive fisheries. Sediment dynamics play a major role for the high productivity of agriculture and fishery in the delta. However, the MD is threatened by climate change, sea level rise and unsustainable development activities in the Mekong Basin. But despite its importance and the expected threats, the understanding of the present and future sediment dynamics in the MD is very limited. This is a consequence of its large extent, the intricate system of rivers, channels and floodplains and the scarcity of observations. Thus this thesis aimed at (1) the quantification of suspended sediment dynamics and associated sediment-nutrient deposition in floodplains of the MD, and (2) assessed the impacts of likely future boundary changes on the sediment dynamics in the MD. The applied methodology combines field experiments and numerical simulation to qu
Download or read book Proceedings Of The Coastal Sediments 2023 The In 5 Volumes written by Ping Wang and published by World Scientific. This book was released on 2023-03-24 with total page 2986 pages. Available in PDF, EPUB and Kindle. Book excerpt: This Proceedings contains about 270 papers on a wide range of research topics on coastal sediment processes, including nearshore sediment transport and modeling, beach processes, shore protection and coastal managements, and coastal resilience building.The unique book provides a comprehensive documentation of cutting-edge research on coastal sediment process and morphodynamics from eminent researchers worldwide. Readers can learn the most current knowledge on numerous topics concerning coastal sediment processes and shore protection.
Download or read book Environmental Sedimentology written by Chris Perry and published by John Wiley & Sons. This book was released on 2009-03-12 with total page 460 pages. Available in PDF, EPUB and Kindle. Book excerpt: Environmental Sedimentology provides a comprehensive introduction to this rapidly expanding field which addresses the functioning and dynamics of contemporary sediment systems and how these systems respond to a range of both natural and anthropogenically-induced disturbance events. considers a range of sedimentary environments; mountain and upland, fluvial, lacustrine, arid, urban, deltaic and estuarine, temperate coastal, tropical coastal, and continental shelf aspects of sediment management and remediation are also considered as are the potential impacts of on-going and future climatic and environmental change Readership: advanced level undergraduates in earth science, environmental science and physical geography, and graduate students in the earth and environmental sciences with an interest in contemporary sediment systems
