Download or read book Systematic Oversteepening in Longitudinal Profiles of Mixed Bedrock alluvial Channels at Tributary Junctions written by Leah Marie Windhorst and published by . This book was released on 2004 with total page 214 pages. Available in PDF, EPUB and Kindle. Book excerpt: Certain mixed bedrock/alluvial channels located in the Valley and Ridge province of the Appalachians in Virginia were identified as having a pattern of systematic oversteepening of channel gradients at tributary junctions. Where drainage area increased, channel slopes were either increasing or remaining constant. Subsequent investigation of 10m resolution digital elevation models found this pattern to be widespread throughout several large nearby drainage basins (A [approximately] 108m2). Several hypotheses for the causes and constraints of the pattern were tested in two ways: (1) digital profiles were compared to pre-existing data sets for grain-size, channel width, lithology, and drainage area; (2) a short field venture was conducted to test the accuracy of the DEMs and to provide additional data sets such as grain-size and channel width against which to compare the digital longitudinal profiles. Results show that there is some correlation between lithology, drainage area, and a pattern of downstream fining. However, the relationships are not strong and begs an analysis of the region at large to explain this channel gradient phenomenon. Periodically high levels of sediment flux moving through the drainage system, eg. debris flows, are a promising mechanism for the initiation of systematic oversteepening in the longitudinal profiles.
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 Fluvial Forms and Processes written by David Knighton and published by Routledge. This book was released on 2014-04-08 with total page 400 pages. Available in PDF, EPUB and Kindle. Book excerpt: David Knighton's best-selling book looks at the wide range of forms developed by natural rivers and the processes responsible for that development. The book combines empirical and theoretical approaches, and provides a critical assessment of the many schools of thought which have emerged for dealing with adjustment in the fluvial system. It is fully illustrated throughout by a superb range of figures, photographs and tables. Starting with the network scale, the book examines the interaction of hillslopes, drainage networks and channels, and goes on to considerations of catchment hydrology and catchment denudation. Fluvial processes are analysed in detail, from the mechanics of flow to sediment transport and deposition. Detailing the major components of river channels, the book examines the nature of river adjustment, particularly with respect to equilibrium concepts, and concludes with a look at channel changes through time, affected by flood discharges, climatic change and human activities.
Download or read book Land use Changes and the Physical Habitat of Streams written by Robert B. Jacobson and published by Geological Survey (USGS). This book was released on 2001 with total page 76 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Large Rivers written by Avijit Gupta and published by John Wiley & Sons. This book was released on 2008-02-28 with total page 712 pages. Available in PDF, EPUB and Kindle. Book excerpt: Large Rivers: Geomorphology and Management explores an important topic in geomorphology and sedimentology: the form and function of major rivers. Our knowledge of the big rivers of the world is limited. It is currently difficult to recognise large rivers of the past from relict sedimentary deposits or to structure management policies for long international rivers. This exciting book brings together a set of papers on large rivers of the world, as a unique introduction to a demanding subject. The book includes thirty chapters and is organised into three sections. The first part is on the environmental requirements for creating and maintaining a major river system. The second is a collection of case studies on 14 large rivers from different continents, covering a range of physical environments. The third section includes chapters on the measurement and management of large rivers. First book to offer in a single volume state-of-the-art knowledge on management and geomorphology of large rivers of the world A pioneering study, pushing the boundaries of our knowledge related to big rivers Includes comprehensive case studies covering the major large rivers of the world including Amazon, Mississippi, Nile, Congo, Indus, and Mekong Written by a leading team of distinguished, international contributors Large Rivers: Geomorphology and Management is essential reading for postgraduate students and researchers in fluvial geomorphology, hydrology, sedimentary geology, and river management. It is also of relevance to engineers and environmental consultants in the private and public sectors working on major rivers of the world.
Download or read book Sedimentology and Stratigraphy written by Gary Nichols and published by John Wiley & Sons. This book was released on 2013-04-30 with total page 433 pages. Available in PDF, EPUB and Kindle. Book excerpt: This fully revised and updated edition introduces the reader to sedimentology and stratigraphic principles, and provides tools for the interpretation of sediments and sedimentary rocks. The processes of formation, transport and deposition of sediment are considered and then applied to develop conceptual models for the full range of sedimentary environments, from deserts to deep seas and reefs to rivers. Different approaches to using stratigraphic principles to date and correlate strata are also considered, in order to provide a comprehensive introduction to all aspects of sedimentology and stratigraphy. The text and figures are designed to be accessible to anyone completely new to the subject, and all of the illustrative material is provided in an accompanying CD-ROM. High-resolution versions of these images can also be downloaded from the companion website for this book at: www.wiley.com/go/nicholssedimentology.
Download or read book Geotechnical Engineering of Dams written by Robin Fell and published by CRC Press. This book was released on 2014-11-21 with total page 1374 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides a comprehensive text on the geotechnical and geological aspects of the investigations for and the design and construction of new dams and the review and assessment of existing dams. The book provides dam engineers and geologists with a practical approach, and gives university students an insight into the subject of dam engineering. All phases of investigation, design and construction are covered, through to the preliminary and detailed design phases and ultimately the construction phase. This revised and expanded 2nd edition includes a lengthy new chapter on the assessment of the likelihood of failure of dams by internal erosion and piping.
Download or read book Earth Materials written by Kevin Hefferan and published by John Wiley & Sons. This book was released on 2010-11-09 with total page 935 pages. Available in PDF, EPUB and Kindle. Book excerpt: Minerals and rocks form the foundation of geologic studies. This new textbook has been written to address the needs of students at the increasing number of universities that have compressed separate mineralogy and petrology courses into a one- or two-semester Earth materials course. Key features of this book include: equal coverage of mineralogy, sedimentary petrology, igneous petrology and metamorphic petrology; copious field examples and regional relationships with graphics that illustrate the concepts discussed; numerous case studies to show the uses of earth materials as resources and their fundamental role in our lives and the global economy, and their relation to natural and human-induced hazards; the integration of earth materials into a cohesive process-based earth systems framework; two color thoughout with 48 pages of four color. Readership: students taking an earth materials, or combined mineralogy and petrology course in an earth science degree program. It will also be useful for environmental scientists, engineering geologists, and physical geographers who need to learn about minerals, rocks, soil and water in a comprehensive framework. A companion website for this book is available at: www.wiley.com/go/hefferan/earthmaterials.
Download or read book Natural and Artificial Rockslide Dams written by Stephen G. Evans and published by Springer Science & Business Media. This book was released on 2011-08-28 with total page 649 pages. Available in PDF, EPUB and Kindle. Book excerpt: In the last one hundred years, a number of catastrophic events associated with rockslide dam formation and failure have occurred in the mountain regions of the world. This book presents a global view of the formation, characteristics and behaviour of natural and artificial rockslide dams. Chapters include a comprehensive state-of-the-art review of our global understanding natural and artificial rockslide dams, overviews of approaches to rockslide dam risk mitigation, regional studies of rockslide dams in India, Nepal, China, Pakistan, New Zealand, and Argentina. Rockslide dams associated with large-scale instability of volcanoes are also examined. Detailed case histories of well-known historic and prehistoric rockslide dams provide examples of investigations of rockslide dam behaviour, stability, and characteristics. The formation and behaviour of rockslide-dammed lakes ("Quake Lakes") formed during the 2008 Wenchuan Earthquake, China are also comprehensively summarised. The formation, sedimentology and stability of rockslide dams is examined in several analytical papers. An analysis of break-out floods from volcanogenic lakes and hydrological methods of estimating break-out flood magnitude and behavior are reviewed. The use of remote sensing data in rockslide-dammed lake characterisation is explored and a new approach to the classification of rockslide dams is introduced. Finally, a unique section of the book summarises Russian and Kyrgyz experience with blast-fill dam construction in two papers by leading authorities on the technology. The volume contains 24 papers by 50 authors from 16 countries including most of the recognised world authorities on the subject.
Download or read book The Loma Prieta California Earthquake of October 17 1989 Landslides written by and published by . This book was released on 1998 with total page 185 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Stream Corridor Restoration written by and published by National Technical Info Svc. This book was released on 1998 with total page 648 pages. Available in PDF, EPUB and Kindle. Book excerpt: This document is a cooperative effort among fifteen Federal agencies and partners to produce a common reference on stream corridor restoration. It responds to a growing national and international interest in restoring stream corridors.
Download or read book Forest Hydrology written by Devendra Amatya and published by CABI. This book was released on 2016-09-14 with total page 309 pages. Available in PDF, EPUB and Kindle. Book excerpt: Forests cover approximately 26% of the world's land surface area and represent a distinct biotic community. They interact with water and soil in a variety of ways, providing canopy surfaces which trap precipitation and allow evaporation back into the atmosphere, thus regulating how much water reaches the forest floor as through fall, as well as pull water from the soil for transpiration. The discipline "forest hydrology" has been developed throughout the 20th century. During that time human intervention in natural landscapes has increased, and land use and management practices have intensified. The book will be useful for graduate students, professionals, land managers, practitioners, and researchers with a good understanding of the basic principles of hydrology and hydrologic processes.
Download or read book Granite Landscapes of the World written by Piotr Migon and published by OUP Oxford. This book was released on 2006-01-19 with total page 412 pages. Available in PDF, EPUB and Kindle. Book excerpt: Outcrops of granitic rocks cover a large proportion of the Earth's surface and host a range of spectacular landforms and landscapes, from extensive plains dotted by inselbergs to deeply dissected mountain ranges. They are often strikingly beautiful, but more importantly, they provide valuable insights into the mechanisms of geomorphic evolution both in the past and at present. The book offers a comprehensive view of the geomorphology of granite areas, examining individual landforms and their assemblages. Weathering processes, and the phenomenon of deep weathering in particular, are given much emphasis as these are fundamental to the understanding of the geomorphic evolution of granite areas. Granite landforms directly related to weathering, such as boulders, tors, inselbergs, and features of surface microrelief are examined in respect to their characteristics and origin. Patterns of slope evolution are shown in the context of both rock slopes and deeply weathered terrains. Granite geomorphology in the coastal, periglacial and glacial context is presented to show how the characteristics of granite control landform evolution in these specific environments. In the closing part a variety of geological controls is reviewed and their primacy over other factors is advocated, followed by an attempt to provide a typology of natural granite landscapes. Finally, certain specific ways of human transformation of granite landscapes are presented. The book will be useful to a range of earth science disciplines, including geomorphology, igneous petrology, engineering geology and soil science. Cultural geographers and people dealing with conservation of geological heritage should find it of interest. Examples from all parts of the world and extensive referencing ensure that it will act as an up-to-date guidebook to the fascinating world of granite geomorphology.
Download or read book Geology of the Navajo Country written by Herbert Ernest Gregory and published by . This book was released on 1917 with total page 161 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Holocene Stratigraphy and Chronology of Mountain Meadows Sierra Nevada California written by Spencer Hoffman Wood and published by . This book was released on 1975 with total page 218 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Introduction to Environmental Geology written by Edward A. Keller and published by Pearson College Division. This book was released on 2012 with total page 705 pages. Available in PDF, EPUB and Kindle. Book excerpt: This text focuses on helping non-science majors develop an understanding of how geology and humanity interact. Ed Keller—the author who first defined the environmental geology curriculum—focuses on five fundamental concepts of environmental geology: Human Population Growth, Sustainability, Earth as a System, Hazardous Earth Processes, and Scientific Knowledge and Values. These concepts are introduced at the outset of the text, integrated throughout the text, and revisited at the end of each chapter. TheFifth Edition emphasizes currency, which is essential to this dynamic subject, and strengthens Keller's hallmark “Fundamental Concepts of Environmental Geology,” unifying the text's diverse topics while applying the concepts to real-world examples.
Download or read book Guidebook of Applied Fluvial Geomorphology written by David A Sear and published by Thomas Telford Limited. This book was released on 2009-11-27 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: In this book, the authors use their extensive experience gained through fieldwork, analysis, and input to the design process to provide a thorough understanding of geomorphology in the river environment and describe effective ways to incorporate geomorphological science into river engineering and management.
