Improved routines to model the ocean carbonate system: mocsy 2.0

Orr, J. C.; Epitalon, J.-M.

doi:https://doi.org/10.5194/gmd-8-485-2015

Articles | Volume 8, issue 3

https://doi.org/10.5194/gmd-8-485-2015

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

https://doi.org/10.5194/gmd-8-485-2015

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

Articles | Volume 8, issue 3

Model description paper

|

09 Mar 2015

Model description paper |

| 09 Mar 2015

Improved routines to model the ocean carbonate system: mocsy 2.0

J. C. Orr and J.-M. Epitalon

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Final revised paper (published on 09 Mar 2015)
Preprint (discussion started on 05 May 2014)

Interactive discussion

Status: closed

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

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- Supplement

RC C505: 'Review of god-2014-61 Orr & Epitalon: Improved routines to model the ocean carbonate systems', Andrew Dickson, 08 May 2014
- AC C1647: 'Author comment on RC C505 (Review from Andrew Dickson)', James Orr, 09 Sep 2014
RC C622: 'Complete update of OCMIP protocol routines -- please improve model description', Guy Munhoven, 23 May 2014
- AC C1749: 'Author comment on RC C622 (Review from Guy Munhoven)', James Orr, 15 Sep 2014
RC C784: 'Review of Orr & Epitalon', Anonymous Referee #3, 06 Jun 2014
- AC C1796: 'Author comment on RC C784 (Review from Referee 3)', James Orr, 18 Sep 2014

Peer-review completion

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

AR by Svenja Lange on behalf of the Authors (08 Dec 2014) Author's response

ED: Publish subject to minor revisions (Editor review) (18 Dec 2014) by Didier Roche

AR by James Orr on behalf of the Authors (18 Dec 2014) Author's response Manuscript

ED: Publish as is (19 Dec 2014) by Didier Roche

Short summary

We provide improved routines to model the ocean carbonate system, i.e., to compute ocean pH and related variables from dissolved inorganic carbon and total alkalinity. These routines (1) rely on the fastest available algorithm to solve the alkalinity-pH equation, which converges even under extreme conditions; (2) avoid common model approximations that lead to errors of 3% or more in computed variables; and (3) account for large pressure effects on subsurface pCO2, unlike other packages.