Very old firn air linked to strong density layering at Styx Glacier, coastal Victoria Land, East Antarctica

Jang, Youngjoon; Hong, Sang Bum; Buizert, Christo; Lee, Hun-Gyu; Han, Sang-Young; Yang, Ji-Woong; Iizuka, Yoshinori; Hori, Akira; Han, Yeongcheol; Jun, Seong Joon; Tans, Pieter; Choi, Taejin; Kim, Seong-Joong; Hur, Soon Do; Ahn, Jinho

doi:https://doi.org/10.5194/tc-13-2407-2019

Articles | Volume 13, issue 9

https://doi.org/10.5194/tc-13-2407-2019

© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/tc-13-2407-2019

© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 13, issue 9

Research article

|

17 Sep 2019

Research article |

| 17 Sep 2019

Very old firn air linked to strong density layering at Styx Glacier, coastal Victoria Land, East Antarctica

Youngjoon Jang, Sang Bum Hong, Christo Buizert, Hun-Gyu Lee, Sang-Young Han, Ji-Woong Yang, Yoshinori Iizuka, Akira Hori, Yeongcheol Han, Seong Joon Jun, Pieter Tans, Taejin Choi, Seong-Joong Kim, Soon Do Hur, and Jinho Ahn

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Final revised paper (published on 17 Sep 2019)
Supplement to the final revised paper
Preprint (discussion started on 05 Mar 2019)

Interactive discussion

Status: closed

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

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- Supplement

RC1: 'Referee's comments', Mauro Rubino, 09 May 2019
- AC1: 'Author response to reviewer #1', Jinho Ahn, 24 Jun 2019
- AC3: 'Revised figures and tables', Jinho Ahn, 24 Jun 2019
RC2: 'Review of manuscript entitled ``Very old firn air linked to strong density layering at Styx Glacier, coastal Victoria Land, East Antarctica'' by Youngjoon Jang et al.', Anonymous Referee #2, 17 May 2019
- AC2: 'Author response to reviewer #2', Jinho Ahn, 24 Jun 2019
- AC4: 'Revised figures and tables', Jinho Ahn, 24 Jun 2019

Peer-review completion

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

ED: Publish subject to minor revisions (review by editor) (26 Jun 2019) by Joel Savarino

AR by Jinho Ahn on behalf of the Authors (06 Jul 2019) Author's response Manuscript

ED: Publish as is (10 Jul 2019) by Joel Savarino

AR by Jinho Ahn on behalf of the Authors (16 Jul 2019) Author's response Manuscript

Short summary

We can learn how human activity altered atmospheric air from the interstitial air in the porous snow layer (firn) on top of glaciers. However, old firn air (> 55 years) was observed only at sites where surface temperatures and snow accumulation rates are very low, such as the South Pole. In this study, we report an unusually old firn air with CO₂ age of 93 years from Styx Glacier, near the Ross Sea coast in Antarctica. We hypothesize that the large snow density variations increase firn air ages.