cannot obtain coordinates from netCDF 4.0 groups

Dear all,

I am using NCL 6.1.2 to read netCDF 4.0 data within groups.
However, the coordinates information cannot be obtained together with data,
even though the coordinate of one variable has been set and there are lat
and lon in each of the groups.

I uploaded the test file snd_LImon_all-mdl_historical_all-nsm_clm.nc onto
ftp.cgd.ucar.edu/incoming.

Here is my codes:
 dir = "~/data/cmip5/output/4plot/"
 fn = "snd_LImon_all-mdl_historical_all-nsm_clm.nc"
 gg = "/snd_CCSM4/snd"
 dd = fin->$gg$
 printVarSummary(dd)

Results:
Variable: dd
Type: float
Total Size: 221184 bytes
            55296 values
Number of Dimensions: 3
Dimensions and sizes: [time | 1] x [lat | 192] x [lon | 288]
Coordinates:
Number Of Attributes: 11
  standard_name : surface_snow_thickness
  long_name : Snow Depth
  comment : SNOWDP unchanged, CMIP5_table_comment: where land over
land, this is computed as the mean thickness of snow in the land portion of
the grid cell (averaging over the entire land portion, including the
snow-free fraction). Reported as 0.0 where the land fraction is 0.
  units : m
  original_name : SNOWDP
  cell_methods : time: mean (interval: 30 days) area: mean where land
  cell_measures : area: areacella
  history : 2012-04-06T21:57:06Z altered by CMOR: replaced missing
value flag (1e+36) with standard missing value (1e+20).
  missing_value : 1e+20
  _FillValue : 1e+20
  associated_files : baseURL:
http://cmip-pcmdi.llnl.gov/CMIP5/dataLocation gridspecFile:
gridspec_landIce_fx_CCSM4_historical_r0i0p0.nc areacella:
areacella_fx_CCSM4_historical_r0i0p0.nc

So, anything wrong with the codes?
Thank you very much!

Best,
Wenshan

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Received on Tue Feb 12 21:11:26 2013