On 4/30/2012 8:40 PM, andrew walsh wrote:
> Hi John and CF-Metadata list,
>
> Based on your earlier advice I decided using the Scalar way to represent
> the coordinate lat, long and time rather than Vector way i.e lat(lat0,
> lon(lon), time(time)
> mainly for reason of simplicity.
the correct other choice is lat(profile), lon(profile), time(profile).
not sure if you caught that.
the scalar choice is fine for 1 profile per file. the other is used to
store multiple profiles in one file.
>
> I have run the Scalar sample through the BADC netCDF checker (*Note)
> at http://titania.badc.rl.ac.uk/cgi-bin/cf-checker.pl and I now get
> this error
> on each of the lat, lon, time variables:
>
> ERROR (4): Axis attribute is not allowed for auxillary coordinate
> variables.
> I don't get this error with the Vector approach. It looks like the
> checker thinks
> my scalar lat, lon, time are 'auxilliary coordinate variables' and
> axis attributes
> are not allowed on these. Is the checker interpreting things correctly?
i think we recently clarified that axis is acceptable on auxiliary
coordinates. OTOH, its unecessary, as long as you follow the other rules
for identifying coordinates (chapter 4).
Received on Tue May 01 2012 - 10:21:46 BST
