Articles | Volume 15, issue 6
The Cryosphere, 15, 2647–2665, 2021
https://doi.org/10.5194/tc-15-2647-2021
The Cryosphere, 15, 2647–2665, 2021
https://doi.org/10.5194/tc-15-2647-2021

Research article 14 Jun 2021

Research article | 14 Jun 2021

Mechanics and dynamics of pinning points on the Shirase Coast, West Antarctica

Holly Still and Christina Hulbe

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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: Reconsider after major revisions (further review by editor and referees) (03 Feb 2021) by Olivier Gagliardini
AR by Holly Still on behalf of the Authors (25 Feb 2021)  Author's response    Author's tracked changes    Manuscript
ED: Referee Nomination & Report Request started (25 Feb 2021) by Olivier Gagliardini
RR by Anonymous Referee #1 (28 Feb 2021)
RR by Anonymous Referee #2 (22 Mar 2021)
ED: Publish subject to minor revisions (review by editor) (25 Mar 2021) by Olivier Gagliardini
AR by Holly Still on behalf of the Authors (01 Apr 2021)  Author's response    Author's tracked changes    Manuscript
ED: Publish subject to minor revisions (review by editor) (15 Apr 2021) by Olivier Gagliardini
AR by Holly Still on behalf of the Authors (19 Apr 2021)  Author's response    Author's tracked changes    Manuscript
ED: Publish as is (29 Apr 2021) by Olivier Gagliardini
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Short summary
Pinning points, locations where floating ice shelves run aground, modify ice flow and thickness. We use a model to quantify the Ross Ice Shelf and tributary ice stream response to a group of pinning points. Ice stream sensitivity to pinning points is conditioned by basal drag, and thus basal properties, upstream of the grounding line. Without the pinning points, a redistribution of resistive stresses supports faster flow and increased mass flux but with a negligible change in total ice volume.