Hi Karl,
Christina's problem is because her usage of standard name modifier is changing the canonical units from those of the unmodified Standard Name. Only solutions I can see are either to omit the Standard Name from this channel or set up a new Standard Name for raw chorophyll as counts. The latter seems to me to be not be as easy as it sounds. Any other opinions?
Cheers, Roy.
________________________________
From: cf-metadata-bounces at cgd.ucar.edu [cf-metadata-bounces at cgd.ucar.edu] On Behalf Of Karl Taylor [taylor13 at llnl.gov]
Sent: 23 February 2011 17:54
To: cristina.tronconi at artov.isac.cnr.it
Cc: cf-metadata at cgd.ucar.edu
Subject: Re: [CF-metadata] help
Hi Chritina,
For dimensionless variables, you can either omit the units attribute or set it to "1". I don't understand why this error is raised. Did you assign a "standard_name" to CHL_count? If so, what did you assign?
thanks,
Karl
On 2/23/11 6:48 AM, cristina.tronconi at artov.isac.cnr.it<mailto:cristina.tronconi at artov.isac.cnr.it> wrote:
Hello,
I have a problem. iN MY NETCDF FILE I define the CHL_count variable.
it is a dimensionless variable.
I used the "standard name modifier: COUNT" for the variable CHL.
for IT I define: units="1" as indicated in the Appendix C of the
"cf-conventions1_4.pdf".
but the cf checker gives me this error:
------------------
Checking variable: CHL_count
------------------
ERROR (3.1): Units are not consistent with those given in the
standard_name table.
WHAT SHOULD I PUT FOR THE ATTRIBUTE UNITS FOR THE CHL_COUNT VARIABLE?
IT IS DIMENSIONLESS!
THANKS IN ADVANCE
CRISTINA TRONCONI
-------------------------------------------------------------------
Cristina Tronconi
Istituto di Scienze dell'Atmosfera e del Clima - sezione di Roma
Consiglio Nazionale delle Ricerche
Via Fosso del Cavaliere 100
00133 Roma, Italy
Tel: +39 06 49934342
cell: '39 349 1242954
Fax: +39 06 20660291
e-mail: cristina.tronconi at artov.isac.cnr.it<mailto:cristina.tronconi at artov.isac.cnr.it>
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