Radium-228-derived ocean mixing and trace element inputs in the South Atlantic

Hsieh, Yu-Te; Geibert, Walter; Woodward, E. Malcolm S.; Wyatt, Neil J.; Lohan, Maeve C.; Achterberg, Eric P.; Henderson, Gideon M.

doi:https://doi.org/10.5194/bg-18-1645-2021

Articles | Volume 18, issue 5

https://doi.org/10.5194/bg-18-1645-2021

© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/bg-18-1645-2021

© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 18, issue 5

Research article

|

09 Mar 2021

Research article |

| 09 Mar 2021

Radium-228-derived ocean mixing and trace element inputs in the South Atlantic

Yu-Te Hsieh, Walter Geibert, E. Malcolm S. Woodward, Neil J. Wyatt, Maeve C. Lohan, Eric P. Achterberg, and Gideon M. Henderson

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Final revised paper (published on 09 Mar 2021)
Preprint (discussion started on 13 Oct 2020)

Interactive discussion

Status: closed

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

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- Supplement

RC1: 'Review of Hsieh et al. 2020', Anonymous Referee #1, 04 Nov 2020
- AC1: 'Response to RC1', Alan Hsieh, 08 Jan 2021
RC2: 'Review of Manuscript', Anonymous Referee #2, 20 Dec 2020
- AC2: 'Response to RC2', Alan Hsieh, 08 Jan 2021

Peer-review completion

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

ED: Reconsider after major revisions (13 Jan 2021) by Markus Kienast

AR by Alan Hsieh on behalf of the Authors (20 Jan 2021) Author's response Author's tracked changes Manuscript

ED: Referee Nomination & Report Request started (20 Jan 2021) by Markus Kienast

RR by Anonymous Referee #1 (04 Feb 2021)

ED: Publish subject to technical corrections (08 Feb 2021) by Markus Kienast

AR by Alan Hsieh on behalf of the Authors (08 Feb 2021) Author's response Manuscript

Short summary

The South Atlantic near 40° S is one of the high-productivity and most dynamic nutrient regions in the oceans, but the sources and fluxes of trace elements (TEs) to this region remain unclear. This study investigates seawater Ra-228 and provides important constraints on ocean mixing and dissolved TE fluxes to this region. Vertical mixing is a more important source than aeolian or shelf inputs in this region, but particulate or winter deep-mixing inputs may be required to balance the TE budgets.