Dear Jon > I agree with your assessment, and I like your proposed name. My > only question remains with the definition. It seems like there > could be two approaches given the specific nature of the product: 1) > write the definition as below with hard-wired pressure levels part > of the definition. Based on my understanding of the product, I have > never seen any other pressures levels other than 500 and 850 hPa > used for the index, but I could be wrong. -or- 2) attempt to > generalize the definition so that it does not mention the specific > pressure levels. This would help to generalize the definition, but > may not add that much value since other pressure levels do not > appear to be commonly used (ever?).
If that is the case, then (1) seems the better choice > Standard Name: atmosphere_stability_total_totals_index > > Definition: > > Option 1)The atmosphere_stability_total_totals_index indicates the > likelihood of severe convection and is often referred to as simply > the total totals index. The index is derived from the difference in > air temperature between 850 and 500 hPa (the vertical totals) and > the difference between the dew point temperature at 850 hPa and the > air temperature at 500 hPa (the cross totals). The vertical totals > and cross totals are summed to obtain the index. You could insert > often referred to as simply the total totals index as in your other definition. This bit: > Air temperature is > the bulk temperature of the air, not the surface (skin) temperature. > The term "surface" means the lower boundary of the atmosphere. doesn't seem necessary in this case, since "surface" is not mentioned. > Canonical Units: K Oh, good. :-) If we define it specifically now, that does not preclude the later addition of a more general standard name if required. Cheers Jonathan _______________________________________________ CF-metadata mailing list [email protected] http://mailman.cgd.ucar.edu/mailman/listinfo/cf-metadata
