olm.calcite.pwpRatePascal¶
- olm.calcite.pwpRatePascal(a_Ca=0.0, a_H2CO3s=0.0, a_H=0.0, a_HCO3=0.0, T_K=298.15, PCO2=0.0)[source]¶
Calculates PWP rate using relation for kappa4 found in PASCAL code.
Calculates PWP dissolution rate for calcite using the relation for kappa4 that is found in the PASCAL code in Dreybrodt (1988). This is also given in equation 3 from Buhmann and Dreybrodt (1985), The kinetics of calcite dissolution and precipitation in geologically relevant situations of karst areas: 1. Open system. They say that it is a fit to the experimental data of Plummer et al. for values of PCO2 < 0.05 atm.
- Parameters:
- a_Cafloat
activity of calcium (mol/L)
- a_H2CO3sfloat
activity of carbonic acid (mol/L)
- a_Hfloat
activity of hydrogen (mol/L)
- a_HCO3float
activity of bicarbonate (mol/L)
- T_Kfloat
temperature degrees Kelvin
- PCO2float
partial pressure of CO2 (atm)
- Returns:
- Rfloat
calcite dissolution rate according to the PWP equation (mmol/cm^2/s)