bg.e21.B1850.f09_g17.LIGtransient_123.0ka.002.clm2.h0.
and
b.e21.B1850.f09_g17.CMIP6-piControl.001.clm2.h0.

Set 9 Description: Line plots, tables, and maps of RTM river flow and discharge to oceans
'D_' denotes a variable derived from two or more history file variables (lnd_func.ncl)
'C_' denotes a CASA model variable.