Vertical Interpolation of Thermodynamcis

[wflams]

Hi All,

I have a question regarding WRF-ARW and how it interpolates temperature and mixing ratio in regions where terrain is zeroed out in a non-terrain simulation. How does it construct the vertical profile for the "below-ground" regions? Is there something equivalent of the fortran code "module_interp_nmm.F" in the NMM core for the ARW core?

Thanks!