Articles | Volume 14, issue 9
https://doi.org/10.5194/tc-14-2883-2020
https://doi.org/10.5194/tc-14-2883-2020
Research article
 | 
09 Sep 2020
Research article |  | 09 Sep 2020

Revealing the former bed of Thwaites Glacier using sea-floor bathymetry: implications for warm-water routing and bed controls on ice flow and buttressing

Kelly A. Hogan, Robert D. Larter, Alastair G. C. Graham, Robert Arthern, James D. Kirkham, Rebecca L. Totten, Tom A. Jordan, Rachel Clark, Victoria Fitzgerald, Anna K. Wåhlin, John B. Anderson, Claus-Dieter Hillenbrand, Frank O. Nitsche, Lauren Simkins, James A. Smith, Karsten Gohl, Jan Erik Arndt, Jongkuk Hong, and Julia Wellner

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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: Publish subject to minor revisions (review by editor) (17 Jun 2020) by Chris R. Stokes
AR by Kelly Hogan on behalf of the Authors (26 Jun 2020)  Manuscript 
ED: Publish as is (08 Jul 2020) by Chris R. Stokes
AR by Kelly Hogan on behalf of the Authors (18 Jul 2020)  Manuscript 

Post-review adjustments

AA: Author's adjustment | EA: Editor approval
AA by Kelly Hogan on behalf of the Authors (07 Aug 2020)   Author's adjustment   Manuscript
EA: Adjustments approved (10 Aug 2020) by Chris R. Stokes
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Short summary
The sea-floor geometry around the rapidly changing Thwaites Glacier is a key control on warm ocean waters reaching the ice shelf and grounding zone beyond. This area was previously unsurveyed due to icebergs and sea-ice cover. The International Thwaites Glacier Collaboration mapped this area for the first time in 2019. The data reveal troughs over 1200 m deep and, as this region is thought to have only ungrounded recently, provide key insights into the morphology beneath the grounded ice sheet.