Hello Randy, I, too, recently thought about this when working on some CF processing software (cf-python), but couldn't think of a use case so didn't pursue it - and now you have one!
It seems to me that the use of scale_factor and add_offset is intended for (but not restricted to ...?) the reduction of dataset size (chapter 8). Is the requirement in your example for space saving, or some other convienience? I personally think that the latter case is better served by an appropiate setting of the units attribute (such as units="0.555555555555556 K @ 459.67" if we have converted from Kelvin to Fahrenheit). Anyway, I can't think of a reason not to allow these attributes on coordinates - these variables can be very large, after all. All the best, David ---- Original message from Randy Horne (01PM 05 Apr 12) > Date: Thu, 5 Apr 2012 13:05:45 -0400 > From: Randy Horne <[email protected]> > To: [email protected] > X-Mailer: <IMail v8.21> > Subject: [CF-metadata] Using add_offset & scale_factor with coordinate > variables > > Folks: > > Appendix A, Table A.1 in the CF conventions state that add_offset and > scale_factor can be used with data variables, but not coordinate variables. > > For the data producing system I am working (GOES-R Ground Segment) it is > particularly convenient to make use of add_offset and scale_factor with our > coordinate variables. > > Is there an issue with changing the conventions to allow this ? > > very respectfully, > > randy > > > > > ..............End of Message ...............................--> > > > > > _______________________________________________ > CF-metadata mailing list > [email protected] > http://mailman.cgd.ucar.edu/mailman/listinfo/cf-metadata -- David Hassell National Centre for Atmospheric Science (NCAS) Department of Meteorology, University of Reading, Earley Gate, PO Box 243, Reading RG6 6BB, U.K. Tel : 0118 3785613 Fax : 0118 3788316 E-mail: [email protected] _______________________________________________ CF-metadata mailing list [email protected] http://mailman.cgd.ucar.edu/mailman/listinfo/cf-metadata
