Re: [CF-metadata] Standard names for CF trac ticket #143

2017-05-25 Thread Jonathan Gregory
Dear Karl Yes, it is a bit vague. Mean sea level is a commonly used concept, but if you wanted to be precise you would use standard names referring to geopotential datum or geoid instead, and state which definition was being used in the grid mapping. I think vagueness is OK in standard names if th

Re: [CF-metadata] Standard names for CF trac ticket #143

2017-05-25 Thread Karl Taylor
Dear all, I kinda like the idea of changing "above sea level" to "above mean sea level", but it still remains somewhat vague, since the period over which the mean is computed isn't specified. Or is there some accepted time? In any case maybe it is o.k. to be vague best regards, Karl

Re: [CF-metadata] Standard names for CF trac ticket #143

2017-05-25 Thread Jim Biard
Jonathan, I think the change to mean_sea_level sounds good. Jim On 5/25/17 10:02 AM, Jonathan Gregory wrote: Dear Alison and Nan Many thanks for doing this, Alison, and apologies that I didn't have time for it sooner myself. I think this is all fine except for the phrase defining geopotentia

[CF-metadata] Standard names for CF trac ticket #143

2017-05-25 Thread Jonathan Gregory
Dear Alison and Nan Many thanks for doing this, Alison, and apologies that I didn't have time for it sooner myself. I think this is all fine except for the phrase defining geopotential datum, which appears in several of them. I would say The "geopotential datum" is any estimated surface of consta