Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 10 of 10 for “"channel gradient"”.
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Field delineation of geomorphic process domains along river networks in the Colorado Front Range
… Such models are well-suited for larger, low-gradient rivers, but fall short in describing the extreme variability associated with headwater streams, which occupy the majority of length of stream networks, provide unique biological productivity and habitat, and can be sites of great sediment …
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Systematic oversteepening in longitudinal profiles of mixed bedrock-alluvial channels at tributary junctions : Appalachians, Virginia
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 …
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Bedrock channel response to tetonic, climatic and eustatic forcings
The response of bedrock channels to external forcings is investigated in this thesis. The approach is to test and constrain a theoretical model for bedrock-channel incision based on shear stress using field data. The primary study area is a series of 21 small, coastal drainage basins in northern …
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Factors Influencing the Distribution of Bull Trout and Westslope Cutthroat Trout West of the Continental Divide in Glacier National Park
… of six abiotic factors (stream width, elevation, gradient, large woody debris density, pool density, mean August stream temperature) and a biotic factor (the presence of nonnative lake trout, Salvelinus namaycush) with the occurrence and density of bull trout and westslope cutthroat trout in 79 …
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Factors Influencing the Distribution of Bull Trout and Westslope Cutthroat Trout West of the Continental Divide in Glacier National Park
… of six abiotic factors (stream width, elevation, gradient, large woody debris density, pool density, mean August stream temperature) and a biotic factor (the presence of nonnative lake trout, Salvelinus namaycush) with the occurrence and density of bull trout and westslope cutthroat trout in 79 …
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Spatiotemporal Variability in the Macroinvertebrate Community of a Small Coastal California Stream, Little Creek, Davenport, California
… community structure was characterized along the channel gradient of a headwater stream in a coast redwood forest on Cal Poly’s Swanton Pacific Ranch in Davenport, California. The significance of physical habitat characteristics in describing macroinvertebrate assemblage structure was assessed in …
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Experimental and numerical modeling of submarine channel flow and morphodynamics
<p>Submarine channels have been documented as ubiquitous features of continental slopes and fan systems.These channels with intricate meandering patterns and extensive levees are recognized as products of density-driven flows known as turbidity currents. The flow field and the morphodynamics of …
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Elevation based classification of streams and establishment of regime equations for predicting bankfull channel geometry
… to develop bankfull relations for estimating channel geometry that can be employed for stream restoration practices. Focusing on these two objectives, in this study a new stream classification system based on elevation above mean sea level has been developed and later using elevation as one of …
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Overcoming unrealistic behavior of landscape evolution models attributed to the stream power incision model: Scale invariance and ultra-sensitivity to initial conditions
… constant, A = upstream drainage area, S = channel gradient, and m and n are exponents. This simple but useful law has been employed with an imposed rock uplift rate to gain insight into steady-state landscapes. The most common choice of exponents satisfies m/n = 0.5. Yet all models have …
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Carbon Pools and Fluxes as an Indicator of Riparian Restoration
… transects perpendicular to the main stream channels were established in 2 recovering riparian forests of different ages (two areas in Pen Branch ~ 8 years post-disturbance; Fourmile Branch ~ 12 years post disturbance) and an undisturbed (thermally) more mature riparian forest (Meyer's Branch …