Articles | Volume 4, issue 3
https://doi.org/10.5194/esurf-4-685-2016
© Author(s) 2016. This work is distributed under
the Creative Commons Attribution 3.0 License.
the Creative Commons Attribution 3.0 License.
https://doi.org/10.5194/esurf-4-685-2016
© Author(s) 2016. This work is distributed under
the Creative Commons Attribution 3.0 License.
the Creative Commons Attribution 3.0 License.
Gravel threshold of motion: a state function of sediment transport disequilibrium?
Joel P. L. Johnson
CORRESPONDING AUTHOR
Department of Geological Sciences, The University of Texas, Austin, TX, USA
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Cited
39 citations as recorded by crossref.
- Modeling memory in gravel-bed rivers: a flow-history-dependent relation for evolving thresholds of motion C. Masteller et al.
- The Role of Bedload Transport in the Development of a Proglacial River Alluvial Fan (Case Study: Scott River, Southwest Svalbard) W. Kociuba
- Coupling 2D hydro-sedimentary modelling with tracer-based flow competence estimation to determine critical bed shear stress G. Piasny et al.
- Estimation of Bedload Yield in Mountain Streams Using Field Observation Data and Machine Learning Techniques T. Kim et al.
- The trouble with shear stress E. Yager et al.
- The influence of bedrock river morphology and alluvial cover on gravel entrainment. Part 2: Modelling critical shear stress R. Hodge & M. Buechel
- Experimental Insights Into the Threshold of Motion in Alluvial Channels: Sediment Supply and Streambed State M. Hassan et al.
- Inertial drag and lift forces for coarse grains on rough alluvial beds measured using in-grain accelerometers G. Maniatis et al.
- Resistance Is Not Futile: Grain Resistance Controls on Observed Critical Shields Stress Variations E. Yager et al.
- Experimental Study of Transient Bedload Transport during Flash Floods with Bores S. Thappeta et al.
- The SPACE 1.0 model: a Landlab component for 2-D calculation of sediment transport, bedrock erosion, and landscape evolution C. Shobe et al.
- Physical Controls on Salmon Redd Site Selection in Restored Reaches of a Regulated, Gravel‐Bed River L. Harrison et al.
- Effect of Sediment Supply on Cyclic Fluctuations of the Disequilibrium Ratio and Threshold Transport Discharge, Inferred From Bedload Transport Measurements Over 27 Years at the Swiss Erlenbach Stream D. Rickenmann
- Gravel threshold of motion: a state function of sediment transport disequilibrium? J. Johnson
- Limits to scale invariance in alluvial rivers R. Ferguson
- SEDIMENT TRANSPORT MODEL FOR MOUNTAINOUS AREA CONSIDERING RIVER WIDTH EXPANSION DUE TO BANK EROSION AND HIDING EFFECT R. KIDO et al.
- Quantifying Predictive Uncertainty and Feature Selection in River Bed Load Estimation: A Multi-Model Machine Learning Approach with Particle Swarm Optimization X. Le et al.
- Earthcasting: Geomorphic Forecasts for Society B. Ferdowsi et al.
- Effect of stress history on sediment transport and channel adjustment in graded gravel-bed rivers C. An et al.
- RiverBedDynamics v1.0: a Landlab component for computing two-dimensional sediment transport and river bed evolution A. Monsalve et al.
- On How Episodic Sediment Supply Influences the Evolution of Channel Morphology, Bedload Transport and Channel Stability in an Experimental Step‐Pool Channel J. Wang et al.
- Morphological Response of an Alpine Braided Reach to Sediment‐Laden Flow Events M. Bakker et al.
- Inverting Topography for Landscape Evolution Model Process Representation: 3. Determining Parameter Ranges for Select Mature Geomorphic Transport Laws and Connecting Changes in Fluvial Erodibility to Changes in Climate K. Barnhart et al.
- Pro+: Automated protrusion and critical shear stress estimates from 3D point clouds of gravel beds E. Yager et al.
- Toward bed state morphodynamics in gravel-bed rivers D. Adams
- Morphodynamics of Boulder‐Bed Semi‐Alluvial Streams in Northern Fennoscandia: A Flume Experiment to Determine Sediment Self‐Organization L. Polvi
- Improving predictions of critical shear stress in gravel bed rivers: Identifying the onset of sediment transport and quantifying sediment structure R. Hodge et al.
- A Unified Approach to Bed Load Transport Description Over a Wide Range of Flow Conditions via the Use of Conditional Data Treatment W. Shih & P. Diplas
- Grain Size Distribution of Bedload Transport in a Glaciated Catchment (Baranowski Glacier, King George Island, Western Antarctica) J. Sziło & R. Bialik
- History‐Dependent Threshold for Motion Revealed by Continuous Bedload Transport Measurements in a Steep Mountain Stream C. Masteller et al.
- A Granular Physics‐Based View of Fault Friction Experiments B. Ferdowsi & A. Rubin
- Impacts of magnitude and texture of variable sediment supply on bedload transport Q. Zhou et al.
- Regional Variation in Gravel Riverbed Mobility, Controlled by Hydrologic Regime and Sediment Supply A. Pfeiffer & N. Finnegan
- Sediment traps with guiding channel and hybrid check dams improve controlled sediment retention S. Schwindt et al.
- Beyond Stationarity: Influence of Flow History and Sediment Supply on Coarse Bedload Transport P. Downs & P. Soar
- At-a-site and between-site variability of bedload transport, inferred from continuous surrogate monitoring, and comparison to predictive equations D. Rickenmann
- Geomorphic Evolution of a Gravel‐Bed River Under Sediment‐Starved Versus Sediment‐Rich Conditions: River Response to the World's Largest Dam Removal A. East et al.
- Smartrock Transport in a Mountain Stream: Bedload Hysteresis and Changing Thresholds of Motion K. Pretzlav et al.
- Bankfull Transport Capacity and the Threshold of Motion in Coarse‐Grained Rivers C. Phillips & D. Jerolmack
39 citations as recorded by crossref.
- Modeling memory in gravel-bed rivers: a flow-history-dependent relation for evolving thresholds of motion C. Masteller et al.
- The Role of Bedload Transport in the Development of a Proglacial River Alluvial Fan (Case Study: Scott River, Southwest Svalbard) W. Kociuba
- Coupling 2D hydro-sedimentary modelling with tracer-based flow competence estimation to determine critical bed shear stress G. Piasny et al.
- Estimation of Bedload Yield in Mountain Streams Using Field Observation Data and Machine Learning Techniques T. Kim et al.
- The trouble with shear stress E. Yager et al.
- The influence of bedrock river morphology and alluvial cover on gravel entrainment. Part 2: Modelling critical shear stress R. Hodge & M. Buechel
- Experimental Insights Into the Threshold of Motion in Alluvial Channels: Sediment Supply and Streambed State M. Hassan et al.
- Inertial drag and lift forces for coarse grains on rough alluvial beds measured using in-grain accelerometers G. Maniatis et al.
- Resistance Is Not Futile: Grain Resistance Controls on Observed Critical Shields Stress Variations E. Yager et al.
- Experimental Study of Transient Bedload Transport during Flash Floods with Bores S. Thappeta et al.
- The SPACE 1.0 model: a Landlab component for 2-D calculation of sediment transport, bedrock erosion, and landscape evolution C. Shobe et al.
- Physical Controls on Salmon Redd Site Selection in Restored Reaches of a Regulated, Gravel‐Bed River L. Harrison et al.
- Effect of Sediment Supply on Cyclic Fluctuations of the Disequilibrium Ratio and Threshold Transport Discharge, Inferred From Bedload Transport Measurements Over 27 Years at the Swiss Erlenbach Stream D. Rickenmann
- Gravel threshold of motion: a state function of sediment transport disequilibrium? J. Johnson
- Limits to scale invariance in alluvial rivers R. Ferguson
- SEDIMENT TRANSPORT MODEL FOR MOUNTAINOUS AREA CONSIDERING RIVER WIDTH EXPANSION DUE TO BANK EROSION AND HIDING EFFECT R. KIDO et al.
- Quantifying Predictive Uncertainty and Feature Selection in River Bed Load Estimation: A Multi-Model Machine Learning Approach with Particle Swarm Optimization X. Le et al.
- Earthcasting: Geomorphic Forecasts for Society B. Ferdowsi et al.
- Effect of stress history on sediment transport and channel adjustment in graded gravel-bed rivers C. An et al.
- RiverBedDynamics v1.0: a Landlab component for computing two-dimensional sediment transport and river bed evolution A. Monsalve et al.
- On How Episodic Sediment Supply Influences the Evolution of Channel Morphology, Bedload Transport and Channel Stability in an Experimental Step‐Pool Channel J. Wang et al.
- Morphological Response of an Alpine Braided Reach to Sediment‐Laden Flow Events M. Bakker et al.
- Inverting Topography for Landscape Evolution Model Process Representation: 3. Determining Parameter Ranges for Select Mature Geomorphic Transport Laws and Connecting Changes in Fluvial Erodibility to Changes in Climate K. Barnhart et al.
- Pro+: Automated protrusion and critical shear stress estimates from 3D point clouds of gravel beds E. Yager et al.
- Toward bed state morphodynamics in gravel-bed rivers D. Adams
- Morphodynamics of Boulder‐Bed Semi‐Alluvial Streams in Northern Fennoscandia: A Flume Experiment to Determine Sediment Self‐Organization L. Polvi
- Improving predictions of critical shear stress in gravel bed rivers: Identifying the onset of sediment transport and quantifying sediment structure R. Hodge et al.
- A Unified Approach to Bed Load Transport Description Over a Wide Range of Flow Conditions via the Use of Conditional Data Treatment W. Shih & P. Diplas
- Grain Size Distribution of Bedload Transport in a Glaciated Catchment (Baranowski Glacier, King George Island, Western Antarctica) J. Sziło & R. Bialik
- History‐Dependent Threshold for Motion Revealed by Continuous Bedload Transport Measurements in a Steep Mountain Stream C. Masteller et al.
- A Granular Physics‐Based View of Fault Friction Experiments B. Ferdowsi & A. Rubin
- Impacts of magnitude and texture of variable sediment supply on bedload transport Q. Zhou et al.
- Regional Variation in Gravel Riverbed Mobility, Controlled by Hydrologic Regime and Sediment Supply A. Pfeiffer & N. Finnegan
- Sediment traps with guiding channel and hybrid check dams improve controlled sediment retention S. Schwindt et al.
- Beyond Stationarity: Influence of Flow History and Sediment Supply on Coarse Bedload Transport P. Downs & P. Soar
- At-a-site and between-site variability of bedload transport, inferred from continuous surrogate monitoring, and comparison to predictive equations D. Rickenmann
- Geomorphic Evolution of a Gravel‐Bed River Under Sediment‐Starved Versus Sediment‐Rich Conditions: River Response to the World's Largest Dam Removal A. East et al.
- Smartrock Transport in a Mountain Stream: Bedload Hysteresis and Changing Thresholds of Motion K. Pretzlav et al.
- Bankfull Transport Capacity and the Threshold of Motion in Coarse‐Grained Rivers C. Phillips & D. Jerolmack
Saved (final revised paper)
Latest update: 18 May 2026
Short summary
Accurately predicting gravel transport rates in mountain rivers is difficult because of feedbacks with channel morphology. River bed surfaces evolve during floods, influencing transport rates. I propose that the threshold of gravel motion is a state variable for channel reach evolution. I develop a new model to predict how transport thresholds evolve as a function of transport rate, and then use laboratory flume experiments to calibrate and validate the model.
Accurately predicting gravel transport rates in mountain rivers is difficult because of...