b.e20.B1850.f09_g16.pi_control.all.139.clm2.h0.
and
b.e20.B1850.f09_g16.pi_control.all.138.clm2.h0.

Set 4 Description: Vertical profiles at selected land raobs stations
'D_' denotes a variable derived from two or more history file variables (lnd_func.ncl)
'C_' denotes a CASA model variable.