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Re: [ferret_users] Possible bug in Ferret 6.7 vs 6.64



Dear Gary Strand,
> 
> I'm getting an error from Ferret 6.7 that doesn't occur when using
> Ferret 6.64. This is a straightforward netCDF file that happens to
> have a field defined on a curvilinear grid that meets CMIP5
> requirements.

Have you tried ferret 6.7.2?  There were relevant changes in 6.7,
6.7.1: improvements in recognizing axes names and dealing with
dimensions.  These changes initially broke some things for us with
specific variables in WRF curvilinear files, very similar to what
you're seeing.  Since ferret 6.7.2, this works "as expected" for us,
again.

Could you post an ncdump -h of your file?  I'd like to see the
attributes of the LEV dimension / variable.

Kind regards,
     Hein Zelle


> 
> Under Ferret 6.64:
> 
>         NOAA/PMEL TMAP
>         FERRET v6.64  
>         Linux(gfortran) 2.6.9-89.0.20.ELsmp - 09/16/10
>          8-Feb-12 08:48     
> 
> yes? use thkcello_fx_CCSM4_lgm_r0i0p0.nc 
>  *** NOTE: Units on axis "j" are not recognized: 1
>  *** NOTE: They will not be convertible:
>  *** NOTE: Units on axis "i" are not recognized: 1
>  *** NOTE: They will not be convertible:
>  *** NOTE: If no missing_value or _FillValue attribute on variables, will use NaN
> yes? show d
>      currently SET data sets:
>     1> ./thkcello_fx_CCSM4_lgm_r0i0p0.nc  (default)
>  name     title                             I         J         K         L
>  LAT      latitude coordinate              1:320     1:384     ...       ...
>  LON      longitude coordinate             1:320     1:384     ...       ...
>  LAT_VERTICES
>                                            1:4       1:320     1:384     ...
>  LON_VERTICES
>                                            1:4       1:320     1:384     ...
>  THKCELLO Ocean Model Cell Thickness       1:320     1:384     1:60      ...
>  
> Under Ferret 6.7:
> 
>         NOAA/PMEL TMAP
>         FERRET v6.7  
>         Linux(gfortran) 2.6.32-71.24.1.el6.x86_6 - 05/06/11
>          8-Feb-12 08:50     
> 
> yes? use thkcello_fx_CCSM4_lgm_r0i0p0.nc 
>  *** NOTE: Units on axis "j" are not recognized: 1
>  *** NOTE: They will not be convertible:
>  *** NOTE: Units on axis "i" are not recognized: 1
>  *** NOTE: They will not be convertible:
>  *** NOTE: Axis LEV marked as UD
>  *** NOTE: but it has different directions in grids. Axes in grids may be inconsistent.
>  *** NOTE: Axis LEV marked as UD
>  *** NOTE: but it has different directions in grids. Axes in grids may be inconsistent.
>  *** NOTE: Axis LEV marked as UD
>  *** NOTE: but it has different directions in grids. Axes in grids may be inconsistent.
>  *** NOTE: Axis LEV marked as UD
>  *** NOTE: but it has different directions in grids. Axes in grids may be inconsistent.
>  *** NOTE: Axis LEV marked as UD
>  *** NOTE: but it has different directions in grids. Axes in grids may be inconsistent.
>  *** NOTE: Axis LEV marked as UD
>  *** NOTE: but it has different directions in grids. Axes in grids may be inconsistent.
>  *** NOTE: Axis LEV marked as UD
>  *** NOTE: but it has different directions in grids. Axes in grids may be inconsistent.
>  *** NOTE: Axis LEV marked as UD
>  *** NOTE: but it has different directions in grids. Axes in grids may be inconsistent.
> yes? show d
>      currently SET data sets:
>     1> ./thkcello_fx_CCSM4_lgm_r0i0p0.nc  (default)
>  name     title                             I         J         K         L
>  LAT      latitude coordinate              1:320     ...       1:384     ...
>  LON      longitude coordinate             1:320     ...       1:384     ...
>  LAT_VERTICES
>                                            1:320     1:4       1:384     1:320
>  LON_VERTICES
>                                            1:320     1:4       1:384     1:320
>  THKCELLO Ocean Model Cell Thickness       1:320     ...       1:384     1:60
>  
> Help!
> 
> The file is available via anonymous ftp at
> 
> ftp://ftp.cgd.ucar.edu/pub/strandwg/ferret/thkcello_fx_CCSM4_lgm_r0i0p0.nc
> 
> Gary Strand
> strandwg@xxxxxxxx
> 
> 
> 
> 


-- 

Dr. Hein Zelle
Advisor Meteorology & Oceanography

Tel:    +31 (0)527-242299
Fax:    +31 (0)527-242016
Email:  hein.zelle@xxxxxxxxxxxxx
Web:    www.bmtargoss.com

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