I'm only intermediate NetCDF/IDV user :-), but...I would look hard at the
vertical coordinate (altitude). The CF doc says:
"A vertical coordinate will be identifiable by:
• units of pressure; or
• the presence of the *positive* attribute with a value of up or down
(case insensitive)."
See:
http://cf-pcmdi.llnl.gov/documents/cf-conventions/1.5/cf-conventions.html#vertical-coordinate
for more details on the "positive" attribute. I think if you specify that,
IDV may be able to pick it up. (I also noticed that the Panoply tool can
generate a display, but does not recognize the vertical dimension either.)
On Apr 25, 2011, at 5:23 PM, Jiwon Seo wrote:
> I'm a beginner of NetCDF and IDV.
>
> I just created a simple NetCDF file, but when I tried to read this file into
> IDV, I got an error message "No gridded data found for ..."
> This simple NetCDF file passes a CF compliance checker.
>
> Here is the complete .nc file (117KB).
> http://www.stanford.edu/~jwseo/public/myfirstcdffile.nc
> Please check this .nc file and give me some feedback.
>
>
> netcdf myfirstcdffile {
> dimensions:
> longitude = 37 ;
> latitude = 19 ;
> altitude = 6 ;
> time = 7 ;
> variables:
> int longitude(longitude) ;
> longitude:standard_name = "longitude" ;
> longitude:units = "degrees_east" ;
> int latitude(latitude) ;
> latitude:standard_name = "latitude" ;
> latitude:units = "degrees_north" ;
> int altitude(altitude) ;
> altitude:standard_name = "altitude" ;
> altitude:units = "m" ;
> float time(time) ;
> time:standard_name = "time" ;
> time:units = "days since 1900-01-01 0:0:0" ;
> time:calendar = "standard" ;
> float ne(time, altitude, latitude, longitude) ;
> ne:standard_name = "air_density" ;
> ne:units = "kg m-3" ;
> ne:_FillValue = -9999.99f ;
>
> // global attributes:
> :title = "My first netcdf file" ;
> :Conventions = "CF-1.4" ;
> :Conventions_help = "
> http://cf-pcmdi.llnl.gov/documents/cf-conventions/1.4/cf-conventions.html";
> ;
> :CreationDate = "2011/04/22 18:23:13" ;
> }
>
>
> Thank you!
> Jiwon
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Christopher Lynnes
Goddard Earth Sciences Data and Information Center, NASA/GSFC
301-614-5185
