Download or read book Comparing Lateral Channel Migration with Historic and Current Geomorphic Assessments written by Alex Gregory Tobergte and published by . This book was released on 2012 with total page 105 pages. Available in PDF, EPUB and Kindle. Book excerpt: Lateral streambank erosion is a naturally occurring process resulting from fluvial detachment and entrainment, and/or mass wasting leading to the migration of stream channels across their floodplains. Stream systems are inherently connected to their watersheds and as a result, changes within a watershed can greatly alter stream stability, including the rates of lateral channel migration. Geomorphic assessments have been developed by numerous researchers to track and document changes in streambank stability. Some geomorphic assessments have successfully identified unstable streambanks; however, they only provided a current snapshot of the streambanks. Research is needed to determine if geomorphic assessments are capable of accurately predicting long-term changes in streambank migration. The Bank Erosion Hazard Index (BEHI), a geomorphic assessment developed by Rosgen (2001), was used in conjunction with data collected in 2011 and historical data from 1996 by Harmel (1997) along a portion of the Upper Illinois River in Northeastern Oklahoma. Lateral channel migration rates were measured using ESRI ArcGIS10 and aerial photographs between the years 1995, 2003, and 2010. Results from a statistical analysis detected no significant differences in lateral channel migration rates between BEHI stability levels. Regression analysis further revealed that multiple factors were required to predict lateral channel migration rates. Stream power was also assessed to determine its ability to account for historical lateral channel migration rates, and was found to not be a valid predictor. Temporal and spatial changes in land use across the watershed were identified as the likely source of variation in lateral channel migration rates during the different time periods. In conclusion, the use of geomorphic assessments should be limited to characterizing current streambank stability.
Download or read book Proceedings written by American Water Resources Association. Summer Specialty Conference and published by . This book was released on 1999 with total page 556 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Handbook for Predicting Stream Meander Migration written by Peter Frederick Lagasse and published by Transportation Research Board. This book was released on 2004 with total page 107 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Treatise on Geomorphology written by and published by Academic Press. This book was released on 2013-02-27 with total page 6392 pages. Available in PDF, EPUB and Kindle. Book excerpt: The changing focus and approach of geomorphic research suggests that the time is opportune for a summary of the state of discipline. The number of peer-reviewed papers published in geomorphic journals has grown steadily for more than two decades and, more importantly, the diversity of authors with respect to geographic location and disciplinary background (geography, geology, ecology, civil engineering, computer science, geographic information science, and others) has expanded dramatically. As more good minds are drawn to geomorphology, and the breadth of the peer-reviewed literature grows, an effective summary of contemporary geomorphic knowledge becomes increasingly difficult. The fourteen volumes of this Treatise on Geomorphology will provide an important reference for users from undergraduate students looking for term paper topics, to graduate students starting a literature review for their thesis work, and professionals seeking a concise summary of a particular topic. Information on the historical development of diverse topics within geomorphology provides context for ongoing research; discussion of research strategies, equipment, and field methods, laboratory experiments, and numerical simulations reflect the multiple approaches to understanding Earth’s surfaces; and summaries of outstanding research questions highlight future challenges and suggest productive new avenues for research. Our future ability to adapt to geomorphic changes in the critical zone very much hinges upon how well landform scientists comprehend the dynamics of Earth’s diverse surfaces. This Treatise on Geomorphology provides a useful synthesis of the state of the discipline, as well as highlighting productive research directions, that Educators and students/researchers will find useful. Geomorphology has advanced greatly in the last 10 years to become a very interdisciplinary field. Undergraduate students looking for term paper topics, to graduate students starting a literature review for their thesis work, and professionals seeking a concise summary of a particular topic will find the answers they need in this broad reference work which has been designed and written to accommodate their diverse backgrounds and levels of understanding Editor-in-Chief, Prof. J. F. Shroder of the University of Nebraska at Omaha, is past president of the QG&G section of the Geological Society of America and present Trustee of the GSA Foundation, while being well respected in the geomorphology research community and having won numerous awards in the field. A host of noted international geomorphologists have contributed state-of-the-art chapters to the work. Readers can be guaranteed that every chapter in this extensive work has been critically reviewed for consistency and accuracy by the World expert Volume Editors and by the Editor-in-Chief himself No other reference work exists in the area of Geomorphology that offers the breadth and depth of information contained in this 14-volume masterpiece. From the foundations and history of geomorphology through to geomorphological innovations and computer modelling, and the past and future states of landform science, no "stone" has been left unturned!
Download or read book Report written by and published by . This book was released on 1964 with total page 788 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Idaho Panhandle National Forests N F Bussel 484 written by and published by . This book was released on 2008 with total page 416 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Riverine Ecology Volume 2 written by Susanta Kumar Chakraborty and published by Springer Nature. This book was released on 2021-02-27 with total page 953 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is part of a two-volume set that offers an innovative approach towards developing methods and tools for assigning conservation categories of threatened taxa and their conservation strategies by way of different phases of eco-restoration in the context of freshwater river systems of tropical bio-geographic zones. The set provides a considerable volume of research on the biodiversity component of river ecosystems, seasonal dynamics of physical chemical parameters, geo-hydrological properties, types, sources and modes of action of different types of pollution, river restoration strategies and methodologies for the ongoing ecological changes of river ecosystems. Volume 2 highlights biodiversity potential in aiding the resistance and resilience of riverine ecosystem functioning and their synergistic effects on ongoing environmental perturbations. Comprehensive information on the conservation of river-associated-wildlife is provided, covering the impacts of pollution, land-use changes, river policies, and ecosystem restoration strategies. The book offers an innovative approach towards developing methods and tools for assigning conservation categories of threatened taxa, and covers their conservation strategies by way of different phases of eco-restoration in the context of freshwater river systems of tropical bio-geographic zones.
Download or read book Assessing Stream Channel Stability at Bridges in Physiographic Regions written by Peggy A. Johnson and published by . This book was released on 2006 with total page 164 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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 Management and Restoration of Fluvial Systems with Broad Historical Changes and Human Impacts written by L. Allan James and published by Geological Society of America. This book was released on 2009-01-01 with total page 258 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Geomorphic Analysis of River Systems written by Kirstie A. Fryirs and published by John Wiley & Sons. This book was released on 2012-09-26 with total page 650 pages. Available in PDF, EPUB and Kindle. Book excerpt: Filling a niche in the geomorphology teaching market, this introductory book is built around a 12 week course in fluvial geomorphology. ‘Reading the landscape’ entails making sense of what a riverscape looks like, how it works, how it has evolved over time, and how alterations to one part of a catchment may have secondary consequences elsewhere, over different timeframes. These place-based field analyses are framed within their topographic, climatic and environmental context. Issues and principles presented in the first part of this book provide foundational understandings that underpin the approach to reading the landscape that is presented in the second half of the book. In reading the landscape, detective-style investigations and interpretations are tied to theoretical and conceptual principles to generate catchment-specific analyses of river character, behaviour and evolution, including responses to human disturbance. This book has been constructed as an introductory text on river landscapes, providing a bridge and/or companion to quantitatively-framed or modelled approaches to landscape analysis that are addressed elsewhere. Key principles outlined in the book emphasise the importance of complexity, contingency and emergence in interpreting the character, behaviour and evolution of any given system. The target audience is second and third year undergraduate students in geomorphology, hydrology, earth science and environmental science, as well as river practitioners who use geomorphic understandings to guide scientific and/or management applications. The primary focus of Kirstie and Gary’s research and teaching entails the use of geomorphic principles as a tool with which to develop coherent scientific understandings of river systems, and the application of these understandings in management practice. Kirstie and Gary are co-developers of the River Styles® Framework and Short Course that is widely used in river management, decision-making and training. Additional resources for this book can be found at: www.wiley.com/go/fryirs/riversystems.
Download or read book WinXSPRO written by Thomas B. Hardy and published by . This book was released on 2005 with total page 110 pages. Available in PDF, EPUB and Kindle. Book excerpt: WinXSPRO is an interactive Windows software package designed to analyze stream channel cross section data for geometric, hydraulic, and sediment transport parameters. WinXSPRO was specifically developed for use in high-gradient streams (gradient > 0.01) and supports four alternative resistance equations for computing boundary roughness and resistance to flow. Cross section input data may be from standard cross section surveys using a rod and level or sag-tape procedures. WinXSPRO allows the user to subdivide the channel cross section into multiple sub-sections and has the ability to vary watersurface slopes with discharge to reflect natural conditions. Analysis options include developing stage-discharge relationships, evaluating changes in channel cross-sectional area, and computing sediment transport rates. Resource specialists can use the estimated stream-channel geometry cross section hydraulic characteristics and sediment transport output to assist with channel design and monitoring, instream flow analysis, the restoration of riparian areas, and the placement of instream structures.
Download or read book Geomorphic Systems of North America written by William L. Graf and published by . This book was released on 1987 with total page 664 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Recent Historic Stream Channel and Climate Changes in the Upper Kickapoo River Basin Southwestern Wisconsin written by Peter Eaton Church and published by . This book was released on 1987 with total page 412 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Assessing the Contribution of Legacy Sediment and Mill Dam Storage to Sediment Budgets in the Piedmont of Maryland written by Mitchell Ryan Donovan and published by . This book was released on 2014 with total page 320 pages. Available in PDF, EPUB and Kindle. Book excerpt: The disparity between watershed erosion rates and downstream sediment delivery has been an important theme in geomorphology for many decades, and the role of floodplains in sediment storage has frequently been cited. In the Piedmont province of the eastern US, upland deforestation and agricultural land use following European settlement led to deposition of thick packages of overbank sediment in valley bottoms, commonly referred to as "legacy" deposits. Previous authors have cited geomorphic evidence that some of this legacy sediment has been remobilized by lateral migration of channels. Recent interest has focused on the role of historic mill dams as a cause of floodplain aggradation, and on mill-dam deposits as a potentially important source of sediment exported downstream. This thesis seeks to address several outstanding questions: 1) How rapidly is sediment being remobilized from Baltimore County floodplains by channel migration and bank erosion? 2) What proportion of this sediment is derived from legacy deposits? 3) Is the presence of mill dams a necessary prerequisite for aggradation of legacy sediment? 4) How important are mill-dam deposits by comparison with other sediment sources contributing to downstream sediment yields?
Download or read book New Publications of the Geological Survey written by Geological Survey (U.S.) and published by . This book was released on 1987 with total page 704 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Tools in Fluvial Geomorphology written by G. Mathias Kondolf and published by John Wiley & Sons. This book was released on 2005-01-28 with total page 698 pages. Available in PDF, EPUB and Kindle. Book excerpt: In recent years there has been a marked increase in funding andemployment in river restoration. Methods in Fluvial Geomorphologyprovides an integrated approach to the interdisciplinary nature ofthe subject and offers guidance for researchers and professionalson the tools available to answer questions on river management onvery difference scales. * Each chapter is organised to cover everything from generalconcepts to specific techniques * Topics covered include evolution of methods, guiding concepts, aframework for deciding when to apply specific tools, advantages andlimitation of the tools, sources of data, equipment and suppliesneeded, and a summary table * Provides the professional with a useful handbook covering alltools used in fluvial geomorphology * Also provides valuable information on the advantages andlimitations of the tools * All chapters include case studies to give examples of theapplications of the tools discussed
