Baffin Bay sea ice extent and synoptic moisture transport drive water vapor isotope (δ18O, δ2H, and deuterium excess) variability in coastal northwest Greenland

Akers, Pete D.; Kopec, Ben G.; Mattingly, Kyle S.; Klein, Eric S.; Causey, Douglas; Welker, Jeffrey M.

doi:https://doi.org/10.5194/acp-20-13929-2020

Articles | Volume 20, issue 22

https://doi.org/10.5194/acp-20-13929-2020

© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/acp-20-13929-2020

© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 20, issue 22

Research article

|

19 Nov 2020

Research article |

| 19 Nov 2020

Baffin Bay sea ice extent and synoptic moisture transport drive water vapor isotope (δ¹⁸O, δ²H, and deuterium excess) variability in coastal northwest Greenland

Pete D. Akers, Ben G. Kopec, Kyle S. Mattingly, Eric S. Klein, Douglas Causey, and Jeffrey M. Welker

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Final revised paper (published on 19 Nov 2020)
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Preprint (discussion started on 18 May 2020)
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Interactive discussion

Status: closed

AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment

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SC1: 'Questions about humidity isotope correction function and calibration', Hans Christian Steen-Larsen, 05 Jun 2020
- SC2: 'Calibration with Dry Air Timing', Pete Akers, 16 Jun 2020
RC1: 'Referee report', Anonymous Referee #2, 15 Jun 2020
RC2: 'review of the article by Akers et al', Anonymous Referee #3, 29 Jul 2020
RC3: 'Review of "Baffin Bay sea ice extent and synoptic moisture transport drive water vapor isotope (δ18O, δD, d-excess) variability in coastal northwest Greenland"', Franziska Aemisegger, 11 Aug 2020
AC1: 'Author response to reviewers', Pete Akers, 23 Aug 2020

Peer-review completion

AR: Author's response | RR: Referee report | ED: Editor decision

AR by Pete D. Akers on behalf of the Authors (23 Aug 2020) Author's response Manuscript

ED: Referee Nomination & Report Request started (27 Aug 2020) by Farahnaz Khosrawi

RR by Anonymous Referee #4 (10 Sep 2020)

ED: Publish as is (11 Sep 2020) by Farahnaz Khosrawi

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Short summary

Water vapor isotopes recorded for 2 years in coastal northern Greenland largely reflect changes in sea ice cover, with distinct values when Baffin Bay is ice covered in winter vs. open in summer. Resulting changes in moisture transport, surface winds, and air temperature also modify the isotopes. Local glacial ice may thus preserve past changes in the Baffin Bay sea ice extent, and this will help us better understand how the Arctic environment and water cycle responds to global climate change.