Steps for building a calibrated flux-transport dynamo for the Sun

We show that a plausible sequence of steps to reach a converged solution in such a dynamo consists of (i) numerical integration of a classical α - ω dynamo driven by a tachocline α effect, (ii) continued integration with inclusion of meridional circulation to convert the model into a flux-transport dynamo driven by only a tachocline α effect, (iii) final integration with inclusion of a Babcock - Leighton surface α effect, resulting in a flux-transport dynamo that can be calibrated to obtain a close fit of model output with solar observations.