[sm_marst@n629 nclcodes]$ ncl plot_si_asky_csky_zmeans.ncl
 Copyright (C) 1995-2017 - All Rights Reserved
 University Corporation for Atmospheric Research
 NCAR Command Language Version 6.5.0-12Jun2017_2045
 The use of this software is governed by a License Agreement.
 See http://www.ncl.ucar.edu/ for more details.

Variable: a
Type: file
filename:	ICMGGgp0j+199001
path:	/nobackup/rossby20/sm_marst/oifsrundir/gp0j_cospvet/ICMGGgp0j+199001
   file global attributes:
   dimensions:
      initial_time0_hours = 248
      g4_lat_1 = 256
      g4_lon_2 = 512
   variables:
      float LAND_GDS4_SFC ( initial_time0_hours, g4_lat_1, g4_lon_2 )
         center :	European Center for Medium-Range Weather Forecasts (RSMC)
         long_name :	Land-sea mask (land=1;sea=0)
         units :	fraction
         _FillValue :	1e+20
         level_indicator :	1
         gds_grid_type :	4
         parameter_table_version :	3
         parameter_number :	81
         forecast_time :	0
         forecast_time_units :	hours

      float CI_GDS4_SFC ( initial_time0_hours, g4_lat_1, g4_lon_2 )
         center :	European Center for Medium-Range Weather Forecasts (RSMC)
         long_name :	Sea-ice cover
         units :	(0 - 1)
         _FillValue :	1e+20
         level_indicator :	1
         gds_grid_type :	4
         parameter_table_version :	128
         parameter_number :	31
         forecast_time :	0
         forecast_time_units :	hours

      float SF_GDS4_SFC ( initial_time0_hours, g4_lat_1, g4_lon_2 )
         center :	European Center for Medium-Range Weather Forecasts (RSMC)
         long_name :	Snowfall
         units :	m of water equivalent
         _FillValue :	1e+20
         level_indicator :	1
         gds_grid_type :	4
         parameter_table_version :	128
         parameter_number :	144
         forecast_time :	0
         forecast_time_units :	hours

      float TCC_GDS4_SFC ( initial_time0_hours, g4_lat_1, g4_lon_2 )
         center :	European Center for Medium-Range Weather Forecasts (RSMC)
         long_name :	Total cloud cover
         units :	(0 - 1)
         _FillValue :	1e+20
         level_indicator :	1
         gds_grid_type :	4
         parameter_table_version :	128
         parameter_number :	164
         forecast_time :	0
         forecast_time_units :	hours

      float LCC_GDS4_SFC ( initial_time0_hours, g4_lat_1, g4_lon_2 )
         center :	European Center for Medium-Range Weather Forecasts (RSMC)
         long_name :	Low cloud cover
         units :	(0 - 1)
         _FillValue :	1e+20
         level_indicator :	1
         gds_grid_type :	4
         parameter_table_version :	128
         parameter_number :	186
         forecast_time :	0
         forecast_time_units :	hours

      float MCC_GDS4_SFC ( initial_time0_hours, g4_lat_1, g4_lon_2 )
         center :	European Center for Medium-Range Weather Forecasts (RSMC)
         long_name :	Medium cloud cover
         units :	(0 - 1)
         _FillValue :	1e+20
         level_indicator :	1
         gds_grid_type :	4
         parameter_table_version :	128
         parameter_number :	187
         forecast_time :	0
         forecast_time_units :	hours

      float HCC_GDS4_SFC ( initial_time0_hours, g4_lat_1, g4_lon_2 )
         center :	European Center for Medium-Range Weather Forecasts (RSMC)
         long_name :	High cloud cover
         units :	(0 - 1)
         _FillValue :	1e+20
         level_indicator :	1
         gds_grid_type :	4
         parameter_table_version :	128
         parameter_number :	188
         forecast_time :	0
         forecast_time_units :	hours

      float SKT_GDS4_SFC ( initial_time0_hours, g4_lat_1, g4_lon_2 )
         center :	European Center for Medium-Range Weather Forecasts (RSMC)
         long_name :	Skin temperature
         units :	K
         _FillValue :	1e+20
         level_indicator :	1
         gds_grid_type :	4
         parameter_table_version :	128
         parameter_number :	235
         forecast_time :	0
         forecast_time_units :	hours

      double initial_time0_hours ( initial_time0_hours )
         long_name :	initial time
         units :	hours since 1800-01-01 00:00

      double initial_time0_encoded ( initial_time0_hours )
         long_name :	initial time encoded as double
         units :	yyyymmddhh.hh_frac

      float g4_lat_1 ( g4_lat_1 )
         long_name :	latitude
         GridType :	Gaussian Latitude/Longitude Grid (Quasi-Regular)
         units :	degrees_north
         N :	128
         Di :	0.7031233
         Lo2 :	359.296
         La2 :	-89.462
         Lo1 :	 0
         La1 :	89.462

      float g4_lon_2 ( g4_lon_2 )
         long_name :	longitude
         GridType :	Gaussian Latitude/Longitude Grid (Quasi-Regular)
         units :	degrees_east
         N :	128
         Di :	0.7031233
         Lo2 :	359.296
         La2 :	-89.462
         Lo1 :	 0
         La1 :	89.462

      string initial_time0 ( initial_time0_hours )
         long_name :	Initial time of first record
         units :	mm/dd/yyyy (hh:mm)