Gravel threshold of motion: a state function of sediment transport
disequilibrium?

Johnson, Joel P. L.

doi:https://doi.org/10.5194/esurf-4-685-2016

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.

https://doi.org/10.5194/esurf-4-685-2016

© Author(s) 2016. This work is distributed under
the Creative Commons Attribution 3.0 License.

Articles | Volume 4, issue 3

Research article

| Highlight paper

|

29 Aug 2016

Research article | Highlight paper |

| 29 Aug 2016

Gravel threshold of motion: a state function of sediment transport disequilibrium?

Joel P. L. Johnson

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Final revised paper (published on 29 Aug 2016)
Preprint (discussion started on 19 Jan 2016)

Interactive discussion

Status: closed

AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment

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- Supplement

RC1: 'Review', Jens Turowski, 08 Feb 2016
- AC1: 'Responses to Turowski Review', Joel Johnson, 31 Jul 2016
RC2: 'Review of ‘Gravel threshold of motion: A state function of sediment transport disequilibrium’', Anonymous Referee #2, 12 Apr 2016
- AC2: 'Responses to Anonymous Reviewer #2', Joel Johnson, 31 Jul 2016
EC1: 'Reviews', Daniel Parsons, 22 Jun 2016
- AC3: 'Response to AE', Joel Johnson, 31 Jul 2016
RC3: 'Review', Anonymous Referee #3, 29 Jun 2016
- AC4: 'Response to Reviewer #3', Joel Johnson, 31 Jul 2016
AC5: 'Revised manuscript showing tracked changes', Joel Johnson, 31 Jul 2016
AC6: 'Revised manuscript+tables+figures, for line #s that correspond to the responses to reviews', Joel Johnson, 31 Jul 2016

Peer-review completion

AR: Author's response | RR: Referee report | ED: Editor decision

AR by Joel Johnson on behalf of the Authors (31 Jul 2016) Author's response Manuscript

ED: Publish as is (02 Aug 2016) by Daniel Parsons

ED: Publish as is (02 Aug 2016) by Andreas Lang (Editor)

AR by Joel Johnson on behalf of the Authors (11 Aug 2016)

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.