Articles | Volume 14, issue 5
Research article
 | Highlight paper
05 May 2020
Research article | Highlight paper |  | 05 May 2020

Quantification of seasonal and diurnal dynamics of subglacial channels using seismic observations on an Alpine glacier

Ugo Nanni, Florent Gimbert, Christian Vincent, Dominik Gräff, Fabian Walter, Luc Piard, and Luc Moreau


Interactive discussion

Status: closed
Status: closed
AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment
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Peer-review completion

AR: Author's response | RR: Referee report | ED: Editor decision
ED: Publish subject to revisions (further review by editor and referees) (14 Feb 2020) by Nanna Bjørnholt Karlsson
ED: Publish subject to minor revisions (review by editor) (25 Mar 2020) by Nanna Bjørnholt Karlsson
AR by Ugo Nanni on behalf of the Authors (26 Mar 2020)  Author's response    Manuscript
ED: Publish as is (27 Mar 2020) by Nanna Bjørnholt Karlsson
Short summary
Our study addresses key questions on the subglacial drainage system physics through a novel observational approach that overcomes traditional limitations. We conducted, over 2 years, measurements of the subglacial water-flow-induced seismic noise and of glacier basal sliding speeds. We then inverted for the subglacial channel's hydraulic pressure gradient and hydraulic radius and investigated the links between the equilibrium state of subglacial channels and glacier basal sliding.