Access the full text.
Sign up today, get DeepDyve free for 14 days.
(1987)
Bed load discharge equations for steep mountain rivers
J. Warburton (1992)
Observations of Bed Load Transport and Channel Bed Changes in a Proglacial Mountain StreamArctic and alpine research, 24
R. Milhous (1973)
Sediment transport in a gravel-bottomed stream
Parker Parker (1979)
Hydraulic geometry of active gravel riversJournal of the Hydraulics Division, American Society of Civil Engineers, 105
G. Kocurek (1938)
The Petrology of the Sedimentary RocksNature, 142
(1999)
Quantification of channel - maintenance flows for gravel - bed rivers
T. Caine (2020)
Sediment movement and storage on alpine slopes in the Colorado Rocky Mountains
G. Parker (1979)
HYDRAULIC GEOMETRY OF ACTIVE GRAVEL RIVERSJournal of Hydraulic Engineering, 105
Marwan Hassan, I. Reid (1990)
The influence of microform bed roughness elements on flow and sediment transport in gravel bed riversEarth Surface Processes and Landforms, 15
H. Guy (1969)
Laboratory theory and methods for sediment analysis
(1985)
The incidence and nature of bedload transport during flood flows in coarse-grained alluvial
(1996)
Sediment transport from small, steep-gradient watersheds in Colorado and Wyoming
P. Whiting, J. Stamm, D. Moog, R. Orndorff (1999)
Sediment-transporting flows in headwater streamsGeological Society of America Bulletin, 111
W. Emmett (1979)
A field calibration of the sediment-trapping characteristics of the Helley-Smith bedload sampler
(1994)
New York; 297–311
W. Dietrich, J. Kirchner, H. Ikeda, Fujiko Iseya (1989)
Sediment supply and the development of the coarse surface layer in gravel-bedded riversNature, 340
J. Laronne, M. Carson (1976)
Interrelationships between bed morphology and bed‐material transport for a small, gravel‐bed channel*Sedimentology, 23
(1969)
Discharge measurements at gaging stations. US Geological Survey, Techniques of Water Resources
E. Helley, Winchell Smith (1971)
Development and calibration of a pressure-difference bedload sampler
Mantz Mantz (1980)
Low sediment transport rates over flat bedsJournal of the Hydraulics Division, American Society of Civil Engineers, 106
(1976)
Bedload transport in two large , gravel - bed rivers , Idaho and Washington
(2002)
American Water Resources Association: Herndon, VA
C. Troendle, M. Wilcox, G. Bevenger, L. Porth (2001)
The Coon Creek Water Yield Augmentation Project: implementation of timber harvesting technology to increase streamflowForest Ecology and Management, 143
R. Sidle (1988)
Bed load transport regime of a small forest streamWater Resources Research, 24
(1987)
Conceptual models of sediment transport in streams
Emmett WW
P. Wilcock, B. McArdell (1993)
Surface-based Fractional Transport Rates: Mobilization Thresholds and Partial Transport of a Sand-gravel SedimentWater Resources Research, 29
M. Martínez, S. Ryan (2000)
Constructing temporary sampling platforms for hydrologic studies., 064
D. Bates, D. Watts (1988)
Nonlinear Regression Analysis and Its Applications
E. Andrews (1983)
Entrainment of gravel from naturally sorted riverbed materialGeological Society of America Bulletin, 94
(1982)
Bedload size and distribution in paved gravel - bed stream
(1992)
A theoretical model for calculating marginal bedload transport rates of gravel
S. Ryan, L. Porth (1999)
A field comparison of three pressure-difference bedload samplers☆Geomorphology, 30
(1969)
Discharge measurements at gaging stations. US Geological Survey, Techniques of Water Resources Investigations
J. Kirchner, W. Dietrich, Fujiko Iseya, H. Ikeda (1990)
The variability of critical shear stress, friction angle, and grain protrusion in water-worked sedimentsSedimentology, 37
Paul Carling (1988)
The concept of dominant discharge applied to two gravel-bed streams in relation to channel stability thresholdsEarth Surface Processes and Landforms, 13
(1994)
Effects of Transbasin Diversion on Flow Regime, Bedload Transport, and Channel Morphology in Colorado Mountain Streams
P. Ashworth, R. Ferguson (1989)
Size‐selective entrainment of bed load in gravel bed streamsWater Resources Research, 25
(1996)
Bedload transport patterns in coarse - grained channels under varying conditions of flow
P. Diplas (1987)
Bedload Transport in Gravel‐Bed StreamsJournal of Hydraulic Engineering, 113
L. Leopold (1992)
Sediment Size that Determines Channel Morphology
(1958)
US Department of the Interior, Bureau of Reclamation and the US Department of Agriculture
(1988)
ed.). Allen and Unwin: Boston; 115–137
I. Reid, L. Frostick (1984)
Particle Interaction and Its Effect on the Thresholds of Initial and Final Bedload Motion in Coarse Alluvial Channels
(1987)
Hey RD (eds). John Wiley: Chichester; 453–477
(2002)
The nature of flow and sediment movement in Little Granite Creek near Bondurant , WY . General Technical Report RMRS - GTR - 90 , Ogden , UT
W. Jackson, R. Beschta (1982)
A model of two-phase bedload transport in an oregon coast range streamEarth Surface Processes and Landforms, 7
P. Mantz (1980)
Low Sediment Transport Rates Over Flat BedsJournal of Hydraulic Engineering, 106
G. Parker, P. Klingeman (1982)
On why gravel bed streams are pavedWater Resources Research, 18
R. Folk (1974)
Petrology of Sedimentary Rocks
C. Paola, R. Seal (1995)
Grain Size Patchiness as a Cause of Selective Deposition and Downstream FiningWater Resources Research, 31
(1989)
Water Resources Monograph 12. American Geophysical Union: Washington, DC
(1983)
Discussion of “ Bedload and size distribution in paved gravel - bed streams ” by G Parker et al
M. Wolman (1954)
A method of sampling coarse river‐bed materialEos, Transactions American Geophysical Union, 35
M. Church (1977)
Palaeohydrological Reconstructions From a Holocene Valley Fill
Colin Thome, R. Hey (1983)
Discussion of “Bedload and Size Distribution in Paved Gravel‐Bed Streams” by Gary Parker, Peter C. Klingeman, and David G. McLean (April, 1982)Journal of Hydraulic Engineering, 109
E. Andrews (1984)
Bed-material entrainment and hydraulic geometry of gravel-bed rivers in ColoradoGeological Society of America Bulletin, 95
J. Hayward (1980)
Hydrology and stream sediments in a mountain catchment
T. Buchanan, W. Somers (1969)
Discharge measurements at gaging stationsTechniques of water-resources investigations
(1999)
Diel variation in discharge and bedload transport processes in a subalpine stream during snowmelt runoff
Marwan Hassan, M. Church (2001)
Sensitivity of bed load transport in Harris Creek: Seasonal and spatial variation over a cobble‐gravel barWater Resources Research, 37
I. Reid, L. Frostick, J. Layman (1985)
The incidence and nature of bedload transport during flood flows in coarse‐grained alluvial channelsEarth Surface Processes and Landforms, 10
J. Buffington, W. Dietrich, J. Kirchner (1992)
Friction angle measurements on a naturally formed gravel streambed: Implications for critical boundary shear stressWater Resources Research, 28
T. Lisle (1995)
Particle Size Variations Between Bed Load and Bed Material in Natural Gravel Bed ChannelsWater Resources Research, 31
(1989)
Applied Linear Regression Models (2nd edn) Irwin: Homewood, IL
K. Nolan, R. Shields (2000)
Measurement of stream discharge by wadingWater-Resources Investigations Report
(1991)
Flow and sediment transport in rough channels
Differences in the transport rate and size of bedload exist for varying levels of flow in coarse‐grained channels. For gravel‐bed rivers, at least two phases of bedload transport, with notably differing qualities, have been described in the literature. Phase I consists primarily of sand and small gravel moving at relatively low rates over a stable channel surface. Transport rates during Phase II are considerably greater than Phase I and more coarse grains are moved, including material from both the channel surface and subsurface. Transition from Phase I to Phase II indicates initiation and transport of grains comprising the coarse surface layer common in steep mountain channels. While the existence of different phases of transport is generally acknowledged, the threshold between them is often poorly defined. We present the results of the application of a piecewise regression analysis to data on bedload transport collected at 12 gravel‐bed channels in Colorado and Wyoming, USA. The piecewise regression recognizes the existence of different linear relationships over different ranges of discharge. The inflection, where the fitted functions intersect, is interpreted as the point of transition from Phase I to Phase II transport; this is termed breakpoint. A comparison of grain sizes moved during the two phases shows that coarse gravel is rarely trapped in the samplers during Phase I transport, indicating negligible movement of grains in this size range. Gravel larger than about D16 of the channel surface is more consistently trapped during Phase II transport. The persistence of coarse gravel in bedload samples provides good evidence that conditions suitable for coarse grain transport have been reached, even though the size of the sediment approaches the size limits of the sampler (76 mm in all cases). A relative breakpoint (Rbr) was defined by the ratio between the discharge at the breakpoint and the 1·5‐year flow (a surrogate for bankfull discharge) expressed as a percentage. The median value of Rbr was about 80 percent, suggesting that Phase II begins at about 80 percent of the bankfull discharge, though the observed values of Rbr ranged from about 60 to 100 percent. Variation in this value appears to be independent of drainage area, median grain size, sorting of bed materials, and channel gradient, at least for the range of parameters measured in 12 gravel‐bed channels. Published in 2002 by John Wiley & Sons, Ltd.
Earth Surface Processes and Landforms – Wiley
Published: Aug 1, 2002
Read and print from thousands of top scholarly journals.
Already have an account? Log in
Bookmark this article. You can see your Bookmarks on your DeepDyve Library.
To save an article, log in first, or sign up for a DeepDyve account if you don’t already have one.
Copy and paste the desired citation format or use the link below to download a file formatted for EndNote
Access the full text.
Sign up today, get DeepDyve free for 14 days.
All DeepDyve websites use cookies to improve your online experience. They were placed on your computer when you launched this website. You can change your cookie settings through your browser.