Dear Daniel Thanks for your hard work on this and your careful description of what you propose. I'm not an expert on this myself, so I don't have an insider's insight and familiarity with these quantities. To me as a non-expert, what you propose generally makes sense, seems logical and in many cases is appealing because it is shorter.
> In the case of "atmosphere_mass_content_of_..." I added "_in_air" in > the end, which was not there before. Actually I don't think we should do this, because atmosphere_ and _in_air are alternatives in standard names, similarly ocean_ and _in_sea_water. The former denotes a property of the entire medium, the latter of the local fluid. > (a) ..._dry_particulate_particulate_organic_matter... > Thus, we had "particulate" twice. We could also call it > (a) ..._dry_particulate_organic_matter... > > which would be less confusing to read. But it would break the rule. I'm in favour of removing the duplication; particulate_particulate would look like a mistake and cause confusion. > the renaming convention in the beginning yields a name structure like > "SIZE-CLASS_WHAT" with "SIZE-CLASS" in "particulate", "pm10", > "pm2p5", ... and with "WHAT" in "nitrate", "ammonium", ... . In this > situation, we don't have a "WHAT" because we mean "all compounds" or > "total". Should we leave it like that or should we insert something > for "WHAT"? Do you mean e.g. mass_concentration_of_ambient_pm10_in_air? I think that is fine. I understand pm10 to mean pm10 particles of any species. > that "dry pm10" + "water in pm10" = "ambient pm10". This would be > a consistent formulation. > But it is not intuitive ... . Do you mean e.g. mass_fraction_of_ambient_pm10_in_air mass_fraction_of_dry_pm10_in_air mass_fraction_of_water_in_pm10_in_air I'm not sure that I understand, but I don't think ambient = dry + water in this case, because the last one appears to mean the mass fraction of the ambient aerosol which is water. I have a vague recollection of discussing before what this was intended to mean. Do you want to describe the mass fraction of the air which is the water of the ambient aerosol? > THE END Good night and sleep well. Best wishes Jonathan _______________________________________________ CF-metadata mailing list [email protected] http://mailman.cgd.ucar.edu/mailman/listinfo/cf-metadata
