Articles | Volume 10, issue 3
https://doi.org/10.5194/esurf-10-581-2022
https://doi.org/10.5194/esurf-10-581-2022
Research article
 | 
10 Jun 2022
Research article |  | 10 Jun 2022

An experimental study of drainage network development by surface and subsurface flow in low-gradient landscapes

Brian G. Sockness and Karen B. Gran

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Interactive discussion

Status: closed

Comment types: AC – author | RC – referee | CC – community | EC – editor | CEC – chief editor | : Report abuse
  • RC1: 'Comment on esurf-2021-74', Anonymous Referee #1, 08 Nov 2021
  • RC2: 'Comment on esurf-2021-74', Francois Metivier, 14 Dec 2021
  • AC1: 'Comment on esurf-2021-74', Karen Gran, 24 Jan 2022

Peer review completion

AR: Author's response | RR: Referee report | ED: Editor decision | EF: Editorial file upload
AR by Karen Gran on behalf of the Authors (28 Jan 2022)  Author's response   Author's tracked changes   Manuscript 
ED: Referee Nomination & Report Request started (31 Jan 2022) by Eric Lajeunesse
RR by Anonymous Referee #1 (09 Feb 2022)
RR by Francois Metivier (09 Feb 2022)
EF by Anna Mirena Feist-Polner (01 Feb 2022)  Supplement 
ED: Reconsider after major revisions (11 Feb 2022) by Eric Lajeunesse
AR by Karen Gran on behalf of the Authors (25 Mar 2022)  Author's response   Author's tracked changes   Manuscript 
ED: Referee Nomination & Report Request started (29 Mar 2022) by Eric Lajeunesse
RR by Anonymous Referee #1 (05 Apr 2022)
ED: Publish subject to technical corrections (06 Apr 2022) by Eric Lajeunesse
ED: Publish subject to technical corrections (10 May 2022) by Tom Coulthard (Editor)
AR by Karen Gran on behalf of the Authors (17 May 2022)  Author's response   Manuscript 
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Short summary
To study channel network development following continental glaciation, we ran small physical experiments where networks slowly expanded into flat surfaces. By changing substrate and rainfall, we altered flow pathways between surface and subsurface. Initially, most channels grew by overland flow. As relief increased, erosion through groundwater sapping occurred, especially in runs with high infiltration and low cohesion, highlighting the importance of groundwater in channel network evolution.