I've taken a look and this and it's a bug in the CF Checker.
The checker correctly interpreted from units and/or positive attributes
that variable time is a T axis,
however failed to correctly identify that "t" and "T" are the same!!!
The use of lowercase values for the axis attribute are allowed according
to the CF Conformance and Recommendations document.
I will fix this in the next version of the checker script.
Regards,
Ros.
Seth McGinnis wrote:
Glancing at my local copy of the cf-checker code, I believe it is
case-sensitive, yes.
As it ought to be: the spec lists valid values for axis as capital letters and
uses the <code> markup that indicates an exact term.
--Seth
On Fri, 23 Jul 2010 12:55:04 -0600
John Caron <[email protected]> wrote:
the units appear ok. is the CF checker case sensitive on the "t" ?
On 7/23/2010 12:27 PM, Karl Taylor wrote:
Stephane,
axis="T" is correct. I'm guessing, the units on your time coordinate aren't
recognized by udunits.
Karl
On 7/23/10 11:02 AM, Stephane Poirier wrote:
Hi All,
I am trying to have our netCDF files comply to CF-1.0 convention.
CF-Convention compliance checker for NetCDF format
(http://*titania.badc.rl.ac.uk/cgi-bin/cf-checker.pl) returns the following
error when checking my netCDF file's "time" variable: ERROR (4): axis
attribute inconsistent with coordinate type as deduced from units and/or
positive.
File
http://*www.*oifii.org/do-org/dod/2010july23_time-axis-attribute-inconsistent-with-coordinate-type-as-deduced-from-units-and-or-positive.jpg
shows how UCAR's NetCDF 4.2 Tool UI see's my netCDF file
(http://*www.*oifii.org/imt/dai/crcm/MRCC.4.2.0_amno_adj_alsi_ps_196012_r(cf-1-4).nc
<http://*www.*oifii.org/imt/dai/crcm/MRCC.4.2.0_amno_adj_alsi_ps_196012_r%28cf-1-4%29.nc>).
Do I get this error because the "axis" attribute of my "time" variable is
set to "t" instead of "time"?
Stephane
--------------------------------------------------------------------
Stephane Poirier, M.Sc. Optical Physics
Remote Sensing Application Software Developer
Geography Department, Burnside Hall
McGill University, Montreal, QC, Canada
http://*geog.mcgill.ca
[email protected] <mailto:[email protected]>
Cell. (514) 994-3532
Fax: (514) 509-8833
--------------------------------------------------------------------
Stephane Poirier, M.Sc. Optical Physics
Remote Sensing Application Software Developer
3532 rue Sainte-Famille, Apt. 4
Montreal, QC, H2X 2L1, Canada
http://*www.*oifii.org
[email protected] <mailto:[email protected]>
Tel.: (514) 509-8833
Fax: (514) 509-8833
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