PUBLIC list: a collection programming-technical constants

A list with elements:

`Haccur` |
accuracy for iterative (Follows2006) pH calculations (max. deviation in [H+]) |

`Hstart` |
start [H+] for an iterative pH calculation |

`maxiter` |
maximum number of iterations for iterative (Follows2006) pH calculation method as well as for the application of the standard R function uniroot |

`unirootinterval` |
the interval (in terms of [H+]) for pH calculation using the standard R function uniroot |

`uniroottol` |
the interval (in terms of [H+]) for pH calculation using the standard R function uniroot |

`epsilon_fraction` |
fraction of disturbance for the numerical calculation of derivatives of TA with respect to changes in the dissociation constants |

`revelle_fraction` |
fraction of disturbance for the numerical calculation of the revelle factor |

`CO2` |
fugacity of CO2 in atm |

Andreas F. Hofmann. Maintained by Karline Soetaert (Karline.Soetaert@nioz.nl).

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