HELP! Northern Hemisphere Domain Boundaries

[jrtaheri09]

Hello,

I'm looking to run the WRF using a mercator or polar projection across the entire northern hemisphere domain. I'm stuck on what boundary conditions to put and my domain limits in the E/W direction, and how to change the boundaries to be cyclic.

Any help on what portions of namelist.wps and namelist.input to add/edit would be greatly appreciated!

THANKS!

Jessica