Options

The optional options parameter is a listdictionary of logicalsbooleans options and an integer debug parameter. The values that can be set within the options listdictionary are:

• sediments: Allow ocean-floor deposition and dissolution of carbon and alkalinity to depend on the deep-ocean concentration of carbonate ions. The default value of FALSEFalse does nothing. A value of FALSEFalse simply overrides the value of abc in constants by setting it to zero.
• weathering: Allow terrestrial weathering of carbonates and silicates to depend on temperature. The default value of TRUETrue does nothing. A value of FALSEFalse simply overrides the values of dlogFwcdT and dlogFwsdT in constants by setting them to zero.
• vegetation: Allow for the vegetative net primary productivity to depend on the atmospheric concentration of CO2 and for the soil oxidation rate to depend on temperature. The default value of TRUETrue does nothing. A value of FALSEFalse simply overrides the values of NPPmax and soilQ10 in vegetation by setting them to NPPpi and 1, respectively.
• debug: An integer that sets the verbosity of informational messages printed to the screen during runtime. The default value is 0. Higher values of 1, 2, and 3 print progressively more information.