Articles | Volume 15, issue 6
The Cryosphere, 15, 2575–2591, 2021
https://doi.org/10.5194/tc-15-2575-2021
The Cryosphere, 15, 2575–2591, 2021
https://doi.org/10.5194/tc-15-2575-2021

Research article 15 Jun 2021

Research article | 15 Jun 2021

Interannual variability in Transpolar Drift summer sea ice thickness and potential impact of Atlantification

H. Jakob Belter et al.

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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) (26 Feb 2021) by John Yackel
AR by H. Jakob Belter on behalf of the Authors (01 Mar 2021)  Author's response    Author's tracked changes    Manuscript
ED: Publish subject to revisions (further review by editor and referees) (16 Mar 2021) by John Yackel
ED: Referee Nomination & Report Request started (20 Mar 2021) by John Yackel
RR by Anonymous Referee #2 (22 Mar 2021)
ED: Publish subject to minor revisions (review by editor) (13 Apr 2021) by John Yackel
AR by H. Jakob Belter on behalf of the Authors (14 Apr 2021)  Author's response    Manuscript
ED: Publish as is (23 Apr 2021) by John Yackel
Short summary
Summer sea ice thickness observations based on electromagnetic induction measurements north of Fram Strait show a 20 % reduction in mean and modal ice thickness from 2001–2020. The observed variability is caused by changes in drift speeds and consequential variations in sea ice age and number of freezing-degree days. Increased ocean heat fluxes measured upstream in the source regions of Arctic ice seem to precondition ice thickness, which is potentially still measurable more than a year later.