Mountain Rivers Revisited by Ellen Wohl

By Ellen Wohl

Published by way of the yank Geophysical Union as a part of the Water assets Monograph Series.

What are the types and approaches attribute of mountain rivers and the way can we recognize them? Mountain Rivers Revisited, an accelerated and up to date model of the sooner quantity Mountain Rivers, solutions those questions and extra. this is the single accomplished synthesis of present wisdom approximately mountain rivers to be had. whereas carrying on with to target actual method and shape in mountain rivers, the textual content additionally addresses the impacts of tectonics, weather, and land use on rivers, in addition to water chemistry, hyporheic alternate, and riparian and aquatic ecology. With its various illustrations and references, hydrologists, geomorphologists, civil and environmental engineers, ecologists, source planners, and their scholars will locate this booklet a necessary resource.

Ellen Wohl obtained her Ph.D. in geology in 1988 from the collage of Arizona. due to the fact then, she has labored totally on mountain and bedrock rivers in various environments.

Content:
Chapter 1 advent (pages 1–12):
Chapter 2 Mountain Drainage Basins (pages 13–102):
Chapter three Channel procedures (pages 103–228):
Chapter four Channel Morphology (pages 229–257):
Chapter five Mountain River Biota (pages 259–293):
Chapter 6 Mountain Rivers and people (pages 295–346):
Chapter 7 box info, Experiments, desktops, Brains (pages 349–352):

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Sample text

He designates the geomorphic impact classes of landslides as being (i) buffered (no discernible contact between landslide toe and river channel), (ii) riparian (landslide slightly protruding or impinging on river channel, but clear dominance of fluvial erosion), (iii) occlusion (diversion of river channel around convex landslide toe), (iv) blockage (occurrence of a landslide-dammed lake), and (v) obliteration (complete burial of valley floor). Hsu and Hsu [2009] numerically simulate channel evolution and bed mobility in response to earthquake-induced landslide dams in China.

Hsu and Hsu [2009] numerically simulate channel evolution and bed mobility in response to earthquake-induced landslide dams in China. Identifying the key controls on the geomorphic coupling between landslides and river channels remains an important need [Korup, 2009]. 2. Debris flows. Debris flow is used here as a general term for a mass movement of sediment mixed with water and air that flows readily on low slopes [Johnson and Rodine, 1984]. This usage of debris flow thus subsumes debris slide, mud flow, mudslide, earth flow, debris torrent, lahar, and several other terms [Hungr, 2005].

Along channels with more abundant sediment supply and more frequent debris flows, passage of a debris flow may disrupt the stable, coarse surface layer of a channel, initiating channel incision [Zicheng and Jing, 1987] or a complex response of aggradation and degradation [Shimazu and Oguchi, 1996]. , 2008]. , 2004]. 2) in relation to sediment supply. , 2007]. , 2008]. Liu et al. [2008] derive magnitude-frequency relations for debris flows at valley and regional scales using statistical analysis of a large database from China such that pðAÞ∼A−n ð2:3Þ where p(A) is the percentage of valleys with area A and n varies by region, and V ∼logA ð2:4Þ where V is volume of debris flow.

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