Articles | Volume 13, issue 7
Research article
11 Jul 2019
Research article |  | 11 Jul 2019

Buoyant forces promote tidewater glacier iceberg calving through large basal stress concentrations

Matt Trevers, Antony J. Payne, Stephen L. Cornford, and Twila Moon


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
AR by Matt Trevers on behalf of the Authors (05 Mar 2019)  Author's response    Manuscript
ED: Referee Nomination & Report Request started (07 Apr 2019) by Eric Larour
RR by Anonymous Referee #1 (08 Apr 2019)
RR by Jeremy Bassis (29 Apr 2019)
ED: Publish subject to minor revisions (review by editor) (29 Apr 2019) by Eric Larour
AR by Matt Trevers on behalf of the Authors (20 May 2019)  Author's response    Manuscript
ED: Publish as is (20 Jun 2019) by Eric Larour
Short summary
Iceberg calving is a major factor in the retreat of outlet glaciers of the Greenland Ice Sheet. Massive block overturning calving events occur at major outlet glaciers. A major calving event in 2009 was triggered by the release of a smaller block of ice from above the waterline. Using a numerical model, we investigate the feasibility of this mechanism to drive large calving events. We find that relatively small perturbations induce forces large enough to open cracks in ice at the glacier bed.