Yes, I agree too that axis values should be monotonic. I wonder if this requirement can/should be extended to two-dimensional coordinate variables? (http://cf-pcmdi.llnl.gov/documents/cf-conventions/1.4/cf-conventions.ht ml#id2984605) It seems much more difficult in this case because in certain convoluted cases, values that are next to each other in grid space are not necessarily close in real space.
Jon -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of Jonathan Gregory Sent: 13 April 2010 08:13 To: John Caron Cc: [email protected] Subject: Re: [CF-metadata] longitude wrapping creates non-monotoniccoordinate values Dear John I agree with you and Steve, and that is the approach I too have taken in analysis software. "Monotonic" means the numbers must uniformly increase or decrease, and some of them will have to be wrapped round to achieve this. The CF checker should give an error for the file as it stands, because monotonicity is a requirement in section 5 of http://cf-pcmdi.llnl.gov/conformance/requirements-and-recommendations/1. 4/ Best wishes Jonathan _______________________________________________ CF-metadata mailing list [email protected] http://mailman.cgd.ucar.edu/mailman/listinfo/cf-metadata _______________________________________________ CF-metadata mailing list [email protected] http://mailman.cgd.ucar.edu/mailman/listinfo/cf-metadata
