Re: [CF-metadata] Are cell_methods attributes OK for coordinate variables?

2015-06-01 Thread David Hassell
Hello Mahalo, Charlie, My gut feeling was it shouldn't, but I then thought why not? after I couldn't think of any counter examples hwich would cause problems. Section 7.3 doesn't disallow it, I think, and I don't think there will be any conflict or ambiguity arising from its use. Appendix A

Re: [CF-metadata] New standard name requests for TSI and SSI

2015-06-01 Thread Jonathan Gregory
Dear all Few opinions still have been given about whether we should change flux to flux_density in standard names, and those few are a majority against doing so. Since the proposers aren't happy with flux for irradiance in W m-2, I think the best compromise is solar_irradiance (W m-2)

Re: [CF-metadata] Are cell_methods attributes OK for coordinate variables?

2015-06-01 Thread Jim Biard
Charlie, My thought is that you should not put a cell_methods attribute on a true coordinate variable. A true coordinate variable is like a number line. It is a set of numbers that should be thought of as independent of the acquired data. This gets a bit fuzzy when it comes to a time variable

Re: [CF-metadata] Are cell_methods attributes OK for coordinate variables?

2015-06-01 Thread Karl Taylor
Hi all, Normally CF doesn't prohibit extra attributes being defined, so I'm not sure whether the checker should be objecting. That being said, I don't think the convention should sanction attaching a cell_methods to a coordinate variable *instead* of attaching it to a regular variable

[CF-metadata] How to define time coordinate in GPS?

2015-06-01 Thread Jonathan Gregory
Dear Jim and Chris I know you're not comfortable with it, but you're not being asked to tell people it's OK actually! :-) The CF convention is mostly for allowing people to describe clearly what they've done, not tell them what to do. It is perfectly fine, and usual, for particular projects which

Re: [CF-metadata] How to define time coordinate in GPS?

2015-06-01 Thread Jim Biard
Jonathan, Let's back down to a case where we are talking in units of whole solar days, and all we have is a Proleptic Gregorian calendar and a Julian calendar. No leap seconds ever get involved. If I record the same set of dates in two different time variables, one using the Proleptic