Seasonality of archaeal lipid flux and GDGT-based thermometry in sinking particles of high-latitude oceans: Fram Strait (79°&thinsp;N) and Antarctic Polar Front (50°&thinsp;S)

Park, Eunmi; Hefter, Jens; Fischer, Gerhard; Iversen, Morten Hvitfeldt; Ramondenc, Simon; Nöthig, Eva-Maria; Mollenhauer, Gesine

doi:https://doi.org/10.5194/bg-16-2247-2019

Articles | Volume 16, issue 11

https://doi.org/10.5194/bg-16-2247-2019

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

https://doi.org/10.5194/bg-16-2247-2019

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

Articles | Volume 16, issue 11

Research article

|

04 Jun 2019

Research article |

| 04 Jun 2019

Seasonality of archaeal lipid flux and GDGT-based thermometry in sinking particles of high-latitude oceans: Fram Strait (79° N) and Antarctic Polar Front (50° S)

Eunmi Park, Jens Hefter, Gerhard Fischer, Morten Hvitfeldt Iversen, Simon Ramondenc, Eva-Maria Nöthig, and Gesine Mollenhauer

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Final revised paper (published on 04 Jun 2019)
Preprint (discussion started on 30 Jan 2019)

Interactive discussion

Status: closed

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

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RC1: 'comments', Anonymous Referee #1, 13 Mar 2019
- AC1: 'Response to Reviewer 1', Eunmi Park, 13 Apr 2019
RC2: 'Review on "Seasonality of archaeal lipid flux and GDGT-based thermometry in sinking articles of high latitude oceans: Fram Strait (79° N) and Antarctic Polar Front (50° S)" by Park et al.', Anonymous Referee #2, 16 Mar 2019
- AC2: 'Response to Reviewer 2', Eunmi Park, 13 Apr 2019

Peer-review completion

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

ED: Publish subject to minor revisions (review by editor) (22 Apr 2019) by Markus Kienast

AR by Eunmi Park on behalf of the Authors (05 May 2019) Author's response Manuscript

ED: Publish as is (09 May 2019) by Markus Kienast

AR by Eunmi Park on behalf of the Authors (09 May 2019) Manuscript

Short summary

We analyzed GDGT-based proxy temperatures in the polar oceans. In the eastern Fram Strait (79° N), the nutrient distribution may determine the depth habit of Thaumarchaeota and thus the proxy temperature. In the Antarctic Polar Front (50° S), the contribution of Euryarchaeota or the nonlinear correlation between the proxy values and temperatures may cause the warm biases of the proxy temperatures relative to SSTs.