Netcdf, nco, ncarg and ncl are installed on the Frost frontends in the /contrib/fe_tools/gnu32 directory.
/contrib/fe_tools/gnu32
To use the tools add /contrib/fe_tools/gnu32/bin to your path and NCARG_ROOT=/contrib/fe_tools/gnu32/ncarg to your environment.
/contrib/fe_tools/gnu32/bin
NCARG_ROOT=/contrib/fe_tools/gnu32/ncarg