Hi Ros, Many thanks - that's pretty clear. I agree about the CF documentation - "udunits.dat" peppered all over the place. We'll use a unit of '1' instead (our application needs each variable to have a unit, even if CF doesn't!). Best Regards, Ian.
________________________________ From: Rosalyn Hatcher [mailto:[email protected]] Sent: 27 September 2011 11:43 To: Culverwell, Ian Cc: [email protected] Subject: Re: [CF-metadata] Is the "bits" unit CF-compliant? Hi Ian, The CF Checker using UDUNITS-2 to validate the units. This is another one of those units where UDUNITS-1 deemed it valid and UDUNITS-2 says it's invalid. I think the CF Document should be updated to specify validation against UDUNITS-2 and also to remove the reference to the udunits.dat file as this no longer exists at UDUNITS-2, instead xml files are used. Regards, Ros. On 26/09/11 12:10, Culverwell, Ian wrote: Sorry, didn't quite finish. ... it says: ERROR (3.1): Invalid units: bits So: is "bits" (or "bit") CF-compliant or not? Thanks for any help, Ian. ________________________________ From: Culverwell, Ian Sent: 26 September 2011 12:09 To: [email protected] Cc: Culverwell, Ian Subject: Is the "bits" unit CF-compliant? Hello, The latest CF-compliance document suggests that we should look to the udunits.dat file in the udunits package to find out if a certain unit is CF-compliant. The latest version of udunits.dat I have lists bit P count as an acceptable unit. Yet when I run a file with this unit through the CF-compliance checker, it says: --- Dr Ian Culverwell D-2-20 Radio Occultation Scientist Met Office FitzRoy Road Exeter Devon EX1 3PB United Kingdom Tel: +44 (0)1392 886637 Fax: +44 (0)1392 885861 E-mail: [email protected] http://www.metoffice.gov.uk <http://www.metoffice.gov.uk/> Join us in celebrating 150 years of forecasting for the nation and enter our photo competition http://www.metoffice.gov.uk/about-us/who/our-history _______________________________________________ CF-metadata mailing list [email protected] http://mailman.cgd.ucar.edu/mailman/listinfo/cf-metadata -- Rosalyn Hatcher NCAS Computational Modelling Services Dept. of Meteorology, University of Reading, Earley Gate, Reading. RG6 6BB Email: [email protected] Tel: +44 (0) 118 378 6016
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