Journal ArticleDOI
Review of step-pool hydrodynamics in mountain streams:
Sruthi Thazhathe Kalathil,Venu Chandra +1 more
- Vol. 43, Iss: 5, pp 607-626
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In this paper, steppools are one of the major types of bed morphology prevalent in mountain streams and they have a unique flow structure as compared to low-gradient streams, in terms of large boundary elements and...Abstract:
Step-pools are one of the major types of bed morphology prevalent in mountain streams. They have a unique flow structure as compared to low-gradient streams, in terms of large boundary elements and...read more
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The role of infrequently mobile boulders in modulating landscape evolution and geomorphic hazards
Charles M. Shobe,Charles M. Shobe,Jens M. Turowski,Ron Nativ,Ron Nativ,Rachel C. Glade,Georgina L. Bennett,Benedetta Dini +7 more
TL;DR: In this paper, the authors review progress on five key questions related to how boulders influence the evolution of unglaciated, eroding landscapes: 1) What factors control boulder production on eroding hillslopes and the subsequent downslope evolution of the boulder size distribution.
Journal Article
Step-Pool Streams: An Adjustment to Maximum Flow Resistance
TL;DR: In this paper, an experiment was conducted to study the maximum flow resistance of step pool streams and the morphology of the steps formed from clastic materials, and the step pool formation was qualitatively simulated to analyze numerically the formation process.
Journal ArticleDOI
Energy Loss in Steep Open Channels with Step-Pools
TL;DR: In this paper, three-dimensional numerical simulations were performed for different flow rates and various geometrical parameters of step-pools in steep open channels to gain insight into the occurrence of energy loss and its dependence on the flow structure.
Equilibrium geomorphological conditions for high gradient bed streams
A N Papanicolaou,A R Maxwell +1 more
TL;DR: In this article, the authors identify the flow conditions under which stable bedforms exist; provide the geometric characteristics of these bedforms; measure the magnitude of the streamwise velocity and energy dissipation factor; and determine the friction factor under various flow conditions and gravel sizes.
Journal ArticleDOI
Flow Resistance in Very Rough Channels
TL;DR: In this paper , the authors used a double-averaging approach to estimate the width, reach, and doubleaveraged variables for steady, uniform flow in an open channel, using an empirical model for the coefficient of form drag, and a flow resistance model that compares well to a large data set of flow velocity in natural channels.
References
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Journal ArticleDOI
Prediction of the transition nappe/skimming flow on a stepped channel
TL;DR: In this paper, a simple analytical method to predict the onset of skimming flow is presented based upon the change of momentum direction at the impact of the jet on the downstream step.
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Velocity prediction in high-gradient channels
TL;DR: In this article, the authors characterized velocity and flow resistance at bank full through low flows in 15 mountain stream reaches containing instream wood, and combined with field data from other studies to develop general methodologies for predicting velocity in alluvial and mixed-alluvial-bedrock channels both with and without step-forming wood.
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Computer Vision Technique for Tracking Bed Load Movement
TL;DR: An advanced image analysis system, called Khoros, was used to investigate the bed load movement of sediment particles in a laboratory flume as mentioned in this paper, which provided quantitative information about the frequency of the entrainment of the glass beads, their displacement distance, and the mode of their motion.
Journal ArticleDOI
Ecological and Hydraulic Studies of Step-Pool Systems
TL;DR: In this article, the authors studied the ecological and hydraulic features of step-pool systems by field investigation, measurement, sampling, and analysis, and revealed that the biodiversity of benthic macroinvertebrates increases with habitat diversity.
Journal ArticleDOI
Linking theory and practice for restoration of step-pool streams.
Anne Chin,Shannah Anderson,Andrew Collison,Barbara J. Ellis-Sugai,Jeffrey P. Haltiner,Johan B. Hogervorst,G. Mathias Kondolf,Linda S. O’Hirok,Alison H. Purcell,Ann L. Riley,Ellen Wohl +10 more
TL;DR: Four unique cases of stream restoration using step-pools are presented, including the evolution of the approaches, the project designs, and adjustments in the system following restoration, demonstrating how theories and relationships developed over the past two decades have been applied in real-world settings.