I usually use the Statistical Downscaling Approaches, such as SDSM and LARS-WG, to downscale the GCMs. I am very interested in comparing the results from the statistical downscaling with the dynamical downscaling. However, I am still confusing about how to initiate dynamic downscaling (including regional climate modeling). Any suggestion on what software (prefer, opensource) we can use as the regional climate model.

Thanks for the response and feedback.