Articles | Volume 8, issue 3
Geosci. Model Dev., 8, 485–499, 2015
https://doi.org/10.5194/gmd-8-485-2015
Geosci. Model Dev., 8, 485–499, 2015
https://doi.org/10.5194/gmd-8-485-2015

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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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.