Variable particle size distributions reduce the sensitivity of global export flux to climate change

Leung, Shirley W.; Weber, Thomas; Cram, Jacob A.; Deutsch, Curtis

doi:https://doi.org/10.5194/bg-18-229-2021

Articles | Volume 18, issue 1

https://doi.org/10.5194/bg-18-229-2021

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

https://doi.org/10.5194/bg-18-229-2021

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

Articles | Volume 18, issue 1

Research article

|

14 Jan 2021

Research article |

| 14 Jan 2021

Variable particle size distributions reduce the sensitivity of global export flux to climate change

Shirley W. Leung, Thomas Weber, Jacob A. Cram, and Curtis Deutsch

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Final revised paper (published on 14 Jan 2021)
Supplement to the final revised paper
Preprint (discussion started on 25 May 2020)
Supplement to the preprint

Interactive discussion

Status: closed

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

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- Supplement

RC1: 'Review of Leung et al.', Anonymous Referee #1, 15 Jun 2020
- AC1: 'Response to Reviewer 1', Shirley Leung, 16 Aug 2020
- AC3: 'Response to Reviewer 1 - corrected', Shirley Leung, 16 Aug 2020
RC2: 'Review of Leung et al. “ Variable phytoplankton size distributions reduce the sensitivity of global export flux to climate change”', Anonymous Referee #2, 17 Jun 2020
- AC2: 'Response to Reviewer 2', Shirley Leung, 16 Aug 2020
RC3: 'REVIEW Variable phytoplankton size distributions reduce the sensitivity of 2 global export flux to climate change by Leung et al.', Anonymous Referee #3, 07 Jul 2020
- AC1: 'Response to Reviewer 1', Shirley Leung, 16 Aug 2020
- AC4: 'Response to Reviewer 3', Shirley Leung, 16 Aug 2020

Peer-review completion

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

ED: Publish subject to minor revisions (review by editor) (20 Aug 2020) by Christoph Heinze

AR by Shirley Leung on behalf of the Authors (27 Oct 2020) Author's response Manuscript

ED: Publish as is (11 Nov 2020) by Christoph Heinze

AR by Shirley Leung on behalf of the Authors (12 Nov 2020)

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Short summary

A global model is constrained with empirical relationships to quantify how shifts in sinking-particle sizes modulate particulate organic carbon export production changes in a warming ocean. Including the effect of dynamic particle sizes on remineralization reduces the magnitude of predicted 100-year changes in export production by ~14 %. Projections of future export could thus be improved by considering dynamic phytoplankton and particle-size-dependent remineralization depths.