Articles | Volume 15, issue 11
The Cryosphere, 15, 5115–5132, 2021
https://doi.org/10.5194/tc-15-5115-2021
The Cryosphere, 15, 5115–5132, 2021
https://doi.org/10.5194/tc-15-5115-2021

Research article 12 Nov 2021

Research article | 12 Nov 2021

Supraglacial lake bathymetry automatically derived from ICESat-2 constraining lake depth estimates from multi-source satellite imagery

Rajashree Tri Datta and Bert Wouters

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Interactive discussion

Status: closed

Comment types: AC – author | RC – referee | CC – community | EC – editor | CEC – chief editor | : Report abuse
  • RC1: 'Reviewer response to tc-2021-4', Jennifer Arthur, 22 Feb 2021
    • AC1: 'Reply on RC1', Rajashree Datta, 11 May 2021
  • RC2: 'Reviewer comments on tc-2021-4, "Supraglacial lake bathymetry automatically derived from ICESat-2 constraining lake depth estimates from multi-source satellite imagery"', Anonymous Referee #2, 11 Mar 2021
    • AC2: 'Reply on RC2', Rajashree Datta, 11 May 2021

Peer review completion

AR: Author's response | RR: Referee report | ED: Editor decision
ED: Reconsider after major revisions (further review by editor and referees) (31 May 2021) by Louise Sandberg Sørensen
AR by Rajashree Datta on behalf of the Authors (12 Jul 2021)  Author's response    Author's tracked changes    Manuscript
ED: Referee Nomination & Report Request started (20 Jul 2021) by Louise Sandberg Sørensen
RR by Anonymous Referee #2 (13 Aug 2021)
ED: Publish subject to minor revisions (review by editor) (01 Sep 2021) by Louise Sandberg Sørensen
AR by Rajashree Datta on behalf of the Authors (11 Sep 2021)  Author's response    Author's tracked changes
ED: Publish subject to technical corrections (08 Oct 2021) by Louise Sandberg Sørensen
AR by Rajashree Datta on behalf of the Authors (16 Oct 2021)  Author's response    Manuscript
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Short summary
The ICESat-2 laser altimeter can detect the surface and bottom of a supraglacial lake. We introduce the Watta algorithm, automatically calculating lake surface, corrected bottom, and (sub-)surface ice at high resolution adapting to signal strength. ICESat-2 depths constrain full lake depths of 46 lakes over Jakobshavn glacier using multiple sources of imagery, including very high-resolution Planet imagery, used for the first time to extract supraglacial lake depths empirically using ICESat-2.