Consequences of Abrading Bed Load on Vertical and Lateral Bedrock Erosion in a Curved Experimental Channel
نویسندگان
چکیده
منابع مشابه
Feedbacks between erosion and sediment transport in experimental bedrock channels
Natural bedrock rivers flow in self-formed channels and form diverse erosional morphologies. The parameters that collectively define channel morphology (e.g. width, slope, bed roughness, bedrock exposure, sediment size distribution) all influence river incision rates and dynamically adjust in poorly understood ways to imposed fluid and sediment fluxes. To explore the mechanics of river incision...
متن کاملeffect of sub-grid scales on large eddy simulation of particle deposition in a turbulent channel flow
چکیده ندارد.
15 صفحه اولEvaluating the controls of shear stress, sediment supply, alluvial cover, and channel morphology on experimental bedrock incision rate
[1] We explored the dependence of experimental bedrock erosion rate on shear stress, bed load sediment flux, alluvial bed cover, and evolving channel morphology. We isolated these variables experimentally by systematically varying gravel sediment flux Qs and water discharge Qw in a laboratory flume, gradually abrading weak concrete “bedrock.” All else held constant, we found that (1) erosion ra...
متن کاملExperimental study of bedrock erosion by granular flows*
[1] Field studies suggest that bedrock incision by granular flows may be the primary process cutting valleys in steep, unglaciated landscapes. An expression has been proposed for debris flow incision into bedrock which posits that erosion rate depends on stresses due to granular interactions at the snout of debris flows. Here, we explore this idea by conducting laboratory experiments to test th...
متن کاملon translation of politeness strategies in dialogues involving female characters in translations and retranslations of novels translated before and after the islamic revolution of iran and their effects on the image of women: a polysystem theory approach
abstract reception environment has considerable effects on accepting a translation. as the expectations of a target culture and its values and needs change throughout history, its criteria for accepting a translation or rejecting it will change accordingly (gentzler, 2001). the expectations of iran, as the reception environment in the present study, have changed after the islamic revolution. i...
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ژورنال
عنوان ژورنال: Journal of Geophysical Research: Earth Surface
سال: 2018
ISSN: 2169-9003
DOI: 10.1029/2017jf004387