-ignore_ic_date 
-silent 
-drv_case clmrun 
-datm_source CPLHIST3HrWx
-datm_data_dir "/glade/data01/CMIP5/CCSM/csm/%c/cpl/hist"
-datm_cpl_case b40.20th.track1.1deg.012
-datm_cycle_beg_year 1850
-datm_cycle_end_year 1900
