On Mon, 5 Apr 1999, Tom Whittaker wrote:
Hi Robb:
Don suggested I send this along to you.
He had kindly sent me a netCDF file with ruc2 data in it so I
could test an application I'm writing. When I opened the file,
my code failed when trying to reference the "grid_number". What
I found was the file defined:
int grid_number(nav, ngrids) ;
grid_number:long_name = "GRIB-1 catalogued grid numbers" ;
grid_number:_FillValue = -9999 ;
where "ngrids" dimension is two. What's strange is that 'ngrids'
doesn't seem to appear anywhere else in the CDL.
Tom,
ngrids is a dimension only, the grid_number should be at the bottom of the
cdl file:
grid_number = 236, 255 ;
I attached ruc2.cdl in case your copy was somehow corrupted. I used
ncdump on a ruc2.nc file today and located grid_number ok, maybe the file
Don sent was corrupted. This happens once in a while when there is no
disk space to write the ruc2.nc file. These files are large:
48478444 Apr 5 12:42 99040518_ruc2.nc
Robb...
I wondered what the story was with this, and what I needed to be
prepared for in my application...it almost looks like two
different grid formats/types might appear in one netCDF file? Or
am I missing something else?
Words of wisdom appreciated...thanks...
tom
--
Tom Whittaker (tomw@xxxxxxxxxxxxx)
University of Wisconsin-Madison
Space Science and Engineering Center
Phone/VoiceMail: 608/262-2759
Fax: 608/263-6738
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Robb Kambic Unidata Program Center
Software Engineer III Univ. Corp for Atmospheric Research
rkambic@xxxxxxxxxxxxxxxx WWW: http://www.unidata.ucar.edu/
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