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Questions for Jacob

In this blogpost, in order to specify between the original EBM and the second version of the EBM, I will denote:

D1= original, faster driver, with the simplified radiative transfer
- more accurate for small changes in radiation
D2= second, larger, slower driver, which allows explicit pCO2 values
- by including a polynomial parameterization of outgoing longwave radiation and planetary albedo

in D2 there is no stochastic functionality/variables (as there is in D1)
- Will the addition of stochastic calculations in D2 help or hurt the accuracy of our model?
in D1 there is a variable called soladj=solar forcing adjustment…
- What is its purpose?
- It is not in D2, will that considerably affect the accuracy of the results?
in the version of D2 you sent me, is there any built-in, uncommented, functionality which dictates how pCO2 changes with time?
- I've added an ODE for pCO2 which allows me to specify as an input into D2 a civilizations annual, per-capita addition of atmospheric CO2: \frac{dP_{co2}}{dt}=\epsilon N
  1. Should I leave this be, and turn on the programs built-in reduction of pCO2 by weathering?
    - if yes, how?
  2. Should I reduce a term from my existing pCO2 ODE (\frac{dP_{co2}}{dt}=\epsilon N-\omega) and turn off the programs built-in functionality?
    - allowing me to have an input in D2, (\omega=annual reduction of pCO2 by Earths natural weathering processes)