Trends and drivers in global surface ocean pH over the past 3 decades

Lauvset, S. K.; Gruber, N.; Landschützer, P.; Olsen, A.; Tjiputra, J.

doi:https://doi.org/10.5194/bg-12-1285-2015

Articles | Volume 12, issue 5

https://doi.org/10.5194/bg-12-1285-2015

© Author(s) 2015. This work is distributed under
the Creative Commons Attribution 3.0 License.

https://doi.org/10.5194/bg-12-1285-2015

© Author(s) 2015. This work is distributed under
the Creative Commons Attribution 3.0 License.

Articles | Volume 12, issue 5

Research article

|

02 Mar 2015

Research article |

| 02 Mar 2015

Trends and drivers in global surface ocean pH over the past 3 decades

S. K. Lauvset, N. Gruber, P. Landschützer, A. Olsen, and J. Tjiputra

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Final revised paper (published on 02 Mar 2015)
Preprint (discussion started on 07 Nov 2014)

Interactive discussion

Status: closed

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

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- Supplement

AC C6817: 'Error in Figures 2-4', S. K. Lauvset, 17 Nov 2014
RC C7437: 'Comment on 'Trends and drivers in global surface ocean pH over the past three decades'', Anonymous Referee #1, 18 Dec 2014
- AC C8665: 'Author's response to Anonomyous Reviewer #1', S. K. Lauvset, 10 Feb 2015
RC C7912: 'Review comments on “Trends and drivers in global surface ocean pH over the past three decades” by S. K. Lauvset et al.', Anonymous Referee #2, 07 Jan 2015
- AC C8666: 'Author's response to Anonymous Reviewer #2', S. K. Lauvset, 10 Feb 2015
AC C8667: 'Tracked changes version of the revised manuscript', S. K. Lauvset, 10 Feb 2015

Peer-review completion

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

AR by Siv K Lauvset on behalf of the Authors (04 Feb 2015) Author's response Manuscript

ED: Publish as is (10 Feb 2015) by Fortunat Joos

AR by Siv K Lauvset on behalf of the Authors (12 Feb 2015)

Short summary

This paper utilizes the SOCATv2 data product to calculate surface ocean pH. The pH data are divided into 17 biomes, and a linear regression is used to derive the long-term trend of pH in each biome. The results are consistent with the trends observed at time series stations. The uncertainties are too large for a mechanistic understanding of the driving forces behind the trend, but there are indications that concurrent changes in chemistry create spatial variability.