I am wondering if anybody has an idea about the difference between regional climate models and numerical weather prediction models that are run at the same domain.
I have a basic idea that the numerical weather prediction models can be run at much higher resolution and due to the time stepping and CFL schemes, it is not always possible to run them for a long time. So I have a general query and I want to infer about the time stepping and CFL criteria used in an RCM and a NWP model. Are they different or they both are similar, it's just that an RCM is run at coarser resolution?
Edit: I want to know if it is possible to get a climate model from a generic NWP model. I have seen the CWRF documentation which illustrates its highlights and mentions some different physical parameterizations corresponding to different processes. I realized that the convergence of model solution is more important even if the time stepping allows to get a long time run. I still have confusions about the new schemes used in CWRF, do they neglect subgrid scale processes like the other climate models? Why are these necessary to be implemented? Here, I also saw the mentioned description about CMM5 but I have the same doubts here. I want to know about the physical parameterizations and numerical schemes used in unified models and how are they different from that of a generic NWP model.