Articles | Volume 15, issue 2
The Cryosphere, 15, 715–742, 2021
https://doi.org/10.5194/tc-15-715-2021
The Cryosphere, 15, 715–742, 2021
https://doi.org/10.5194/tc-15-715-2021

Research article 15 Feb 2021

Research article | 15 Feb 2021

Sensitivity of ice sheet surface velocity and elevation to variations in basal friction and topography in the full Stokes and shallow-shelf approximation frameworks using adjoint equations

Gong Cheng et al.

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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) (21 Aug 2020) by Olivier Gagliardini
AR by Gong Cheng on behalf of the Authors (29 Sep 2020)  Author's response    Manuscript
ED: Referee Nomination & Report Request started (04 Oct 2020) by Olivier Gagliardini
RR by Anonymous Referee #1 (24 Oct 2020)
RR by Anonymous Referee #2 (10 Nov 2020)
ED: Publish subject to minor revisions (review by editor) (17 Nov 2020) by Olivier Gagliardini
AR by Gong Cheng on behalf of the Authors (27 Nov 2020)  Author's response    Manuscript
ED: Publish subject to minor revisions (review by editor) (09 Dec 2020) by Olivier Gagliardini
AR by Gong Cheng on behalf of the Authors (15 Dec 2020)  Author's response    Author's tracked changes    Manuscript
ED: Publish as is (15 Dec 2020) by Olivier Gagliardini
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Short summary
We present an inverse modeling approach to improve the understanding of spatiotemporally variable processes at the inaccessible base of an ice sheet by determining the sensitivity of direct surface observations to perturbations of basal conditions. Time dependency is proved to be important in these types of problems. The effect of perturbations is analyzed based on analytical and numerical solutions.