Efficacy of bedrock erosion by subglacial water flow

Beaud, F.; Flowers, G. E.; Venditti, J. G.

doi:https://doi.org/10.5194/esurf-4-125-2016

Articles | Volume 4, issue 1

https://doi.org/10.5194/esurf-4-125-2016

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

https://doi.org/10.5194/esurf-4-125-2016

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

Articles | Volume 4, issue 1

Research article

| Highlight paper

|

27 Jan 2016

Research article | Highlight paper |

| 27 Jan 2016

Efficacy of bedrock erosion by subglacial water flow

F. Beaud, G. E. Flowers, and J. G. Venditti

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Final revised paper (published on 27 Jan 2016)
Supplement to the final revised paper
Preprint (discussion started on 09 Sep 2015)
Supplement to the preprint

Interactive discussion

Status: closed

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

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- Supplement

RC C350: 'Review of Beaud et al. ‘Efficacy of bedrock erosion by subglacial water flow’', John Jansen, 11 Oct 2015
RC C411: 'editorial review for "Efficacy of bedrock erosion by subglacial water flow"', Anonymous Referee #2, 10 Nov 2015
EC C416: 'Additional AE comments', Arjen Stroeven, 17 Nov 2015
AC C562: 'Response to reviewers and editor comments', Flavien Beaud, 07 Jan 2016
- EC C607: 'Acknowledgement of response', Arjen Stroeven, 09 Jan 2016

Peer-review completion

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

AR by Flavien Beaud on behalf of the Authors (12 Jan 2016) Author's response Manuscript

ED: Publish as is (18 Jan 2016) by Arjen Stroeven

ED: Publish as is (19 Jan 2016) by Frédéric Herman (Editor)

AR by Flavien Beaud on behalf of the Authors (19 Jan 2016) Manuscript

Short summary

In regions formerly, or currently, covered by glaciers, landscapes have largely been shaped by glaciers. Glaciers erode bedrock through three main mechanisms: abrasion, quarrying, and subglacial meltwater erosion (SME). The latter, however, remains enigmatic. We present the first numerical modelling study of bedrock erosion by subglacial water and find that SME is negligible compared to abrasion and quarrying across the glacier, but its localization can explain the formation of bedrock channels.