Articles | Volume 22, issue 4
https://doi.org/10.5194/os-22-2267-2026
https://doi.org/10.5194/os-22-2267-2026
Research article
 | 
28 Jul 2026
Research article |  | 28 Jul 2026

Documenting the 2015–2017 freshening of the eastern Eurasian Basin of the Arctic Ocean and evaluating its drivers and consequences

Dolly More, Igor V. Polyakov, and Andrey V. Pnyushkov

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Interactive discussion

Status: closed

Comment types: AC – author | RC – referee | CC – community | EC – editor | CEC – chief editor | : Report abuse

Peer review completion

AR – Author's response | RR – Referee report | ED – Editor decision | EF – Editorial file upload
AR by Igor Polyakov on behalf of the Authors (22 Apr 2026)  Author's response   Author's tracked changes   Manuscript 
ED: Referee Nomination & Report Request started (28 Apr 2026) by Agnieszka Beszczynska-Möller
RR by Sergei Kirillov (29 Apr 2026)
RR by Anonymous Referee #1 (13 May 2026)
ED: Publish subject to minor revisions (review by editor) (25 May 2026) by Agnieszka Beszczynska-Möller
AR by Igor Polyakov on behalf of the Authors (01 Jun 2026)  Author's response   Author's tracked changes   Manuscript 
ED: Publish subject to technical corrections (08 Jun 2026) by Agnieszka Beszczynska-Möller
AR by Igor Polyakov on behalf of the Authors (16 Jun 2026)  Author's response   Manuscript 

Post-review adjustments

AA – Author's adjustment | EA – Editor approval
AA by Igor Polyakov on behalf of the Authors (17 Jul 2026)   Author's adjustment   Manuscript
EA: Adjustments approved (27 Jul 2026) by Agnieszka Beszczynska-Möller
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Short summary
The Arctic Ocean is changing fast, and river runoff plays a key role. Between 2015 and 2017, unusually large flows from Siberia’s Yenisey and Ob Rivers made the eastern Arctic much fresher. This stabilized the ocean, slowed currents, and reduced heat from below, allowing thicker sea ice to persist through summer. The study shows how bursts of river discharge can reshape the Arctic and help sea ice survive.
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