Long-chain diols in settling particles in tropical oceans: insights into sources, seasonality and proxies

de Bar, Marijke W.; Ullgren, Jenny E.; Thunnell, Robert C.; Wakeham, Stuart G.; Brummer, Geert-Jan A.; Stuut, Jan-Berend W.; Sinninghe Damsté, Jaap S.; Schouten, Stefan

doi:https://doi.org/10.5194/bg-16-1705-2019

Articles | Volume 16, issue 8

https://doi.org/10.5194/bg-16-1705-2019

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

https://doi.org/10.5194/bg-16-1705-2019

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

Articles | Volume 16, issue 8

Research article

|

25 Apr 2019

Research article |

| 25 Apr 2019

Long-chain diols in settling particles in tropical oceans: insights into sources, seasonality and proxies

Marijke W. de Bar, Jenny E. Ullgren, Robert C. Thunnell, Stuart G. Wakeham, Geert-Jan A. Brummer, Jan-Berend W. Stuut, Jaap S. Sinninghe Damsté, and Stefan Schouten

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Final revised paper (published on 25 Apr 2019)
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Preprint (discussion started on 01 Feb 2019)

Interactive discussion

Status: closed

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

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- Supplement

RC1: 'Review on bg-2019-15 “Long chain diols in settling particles in tropical oceans: insights into sources, seasonality and proxies” by de Bar et al.', Anonymous Referee #1, 11 Feb 2019
- AC1: 'Response to referee 1', Marijke de Bar, 13 Feb 2019
RC2: 'Review of bg-2019-15', Anonymous Referee #2, 22 Feb 2019
- AC2: 'Response to Referee 2', Marijke de Bar, 05 Mar 2019

Peer-review completion

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

ED: Publish subject to minor revisions (review by editor) (18 Mar 2019) by Markus Kienast

AR by Marijke de Bar on behalf of the Authors (26 Mar 2019) Author's response Manuscript

ED: Publish as is (01 Apr 2019) by Markus Kienast

AR by Marijke de Bar on behalf of the Authors (08 Apr 2019) Author's response Manuscript

Post-review adjustments

AA: Author's adjustment | EA: Editor approval

AA by Marijke de Bar on behalf of the Authors (18 Apr 2019) Author's adjustment Manuscript

EA: Adjustments approved (22 Apr 2019) by Markus Kienast

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Short summary

We analyzed sediment traps from the Cariaco Basin, the tropical Atlantic and the Mozambique Channel to evaluate seasonal imprints in the concentrations and fluxes of long-chain diols (LDIs), in addition to the long-chain diol index proxy (sea surface temperature proxy) and the diol index (upwelling indicator). Despite significant degradation, LDI-derived temperatures were very similar for the sediment traps and seafloor sediments, and corresponded to annual mean sea surface temperatures.