Dear Manager,

 I would like to ask a few very basic questions about RegCM3 and RegCM4. Could you please help me out before I start to use RegCM3?

 1- Can RegCM3 be used on personal computer & does it cost large amount of energy?
  2- Can dynamical downscaling be done at home with ease for a region like size of Pakistan?
 3- Where to obtain GCM data?

Look forward to your reply.

Thanks and regards
Khalid