Articles | Volume 14, issue 7
Geosci. Model Dev., 14, 4225–4240, 2021
https://doi.org/10.5194/gmd-14-4225-2021
Geosci. Model Dev., 14, 4225–4240, 2021
https://doi.org/10.5194/gmd-14-4225-2021

Development and technical paper 06 Jul 2021

Development and technical paper | 06 Jul 2021

SolveSAPHE-r2 (v2.0.1): revisiting and extending the Solver Suite for Alkalinity-PH Equations for usage with CO2, HCO3 or CO32− input data

Guy Munhoven

Model code and software

SolveSAPHE-r2 (Solver Suite for Alkalinity-PH Equations–Release 2) Guy Munhoven https://doi.org/10.5281/zenodo.4771132

Short summary
SolveSAPHE (Munhoven, 2013) was the first package to calculate pH reliably from any physically sensible pair of total alkalinity (AlkT) and dissolved inorganic carbon (CT) data and to do so in an autonomous and efficient way. Here, we extend it to use CO2, HCO3 or CO3 instead of CT. For each one of these pairs, the new SolveSAPHE calculates all of the possible pH values (0, 1, or 2), again without any prior knowledge of the solutions.