Different result if GFS (global) or region?

F

FOH

New member
Hey, everyone, I would like to know that if my initial boundary conditions are the GFS, there will be some difference in the result if I use the whole domain of the GFS (global) or if I only use one area, for example only South America
I want to do downscaling to the GFS forecasts
 
Hi,
There likely will be differences if using a regional domain, as opposed to a global domain due to things that take place at the boundaries, but it is recommended to use WRF for regional domains. If you are interested in running a global application, we advise to use the MPAS model, instead.
 
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