Hi all, I wanted to have vertically variable (and eventually time-varying) isotropic mixing (i.e. KH=Kz, and nuH=nuz), but it looks like the gcm only accepts constant Kh. Am I missing something, or do I need to find all instances in the GAD pkg and appropriately re-cast? Thanks, Jody -- Jody Klymak http://web.uvic.ca/~jklymak/