Fluvial forms and processes knighton pdf
Fluvial Forms and Processes a New Perspective by Knighton David - AbeBooksDavid 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.
Fluvial Forms and Processes: A New Perspective / Edition 2
Geomorphologists seek to understand why landscapes look the way they do, to understand landform history and dynamics and to predict changes through a combination of field observations, physical experiments and numerical modeling. Geomorphologists work within disciplines such as physical geography , geology , geodesy , engineering geology , archaeology , climatology and geotechnical engineering. This broad base of interests contributes to many research styles and interests within the field. Earth 's surface is modified by a combination of surface processes that shape landscapes, and geologic processes that cause tectonic uplift and subsidence , and shape the coastal geography. Surface processes comprise the action of water , wind , ice , fire , and living things on the surface of the Earth, along with chemical reactions that form soils and alter material properties, the stability and rate of change of topography under the force of gravity , and other factors, such as in the very recent past human alteration of the landscape. Many of these factors are strongly mediated by climate. Geologic processes include the uplift of mountain ranges , the growth of volcanoes , isostatic changes in land surface elevation sometimes in response to surface processes , and the formation of deep sedimentary basins where the surface of the Earth drops and is filled with material eroded from other parts of the landscape.
WFD leglislative term that encompasses fluvial geomorphology and hydrology i. Fluvial forms and processes are recognised as a key component of river systems in EU WFD and national legislation. River landforms and flows constitute the basic physical template that influences riverine biota. Fluvial geomorphology input is needed for sustainable river management and restoration. Scottish landscapes have been conditioned by glaciation and rivers are still adjusting to this legacy. Boundary conditions: bed and bank material. Sparse vegetation, non- Dense vegetation, cohesive Bedrock banks cohesive alluvial banks alluvial banks Alluvial bed Alluvial bed Bedrock bed.
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