Dear all, Last month, I wrote about the lack of variable name for a local measurement of liquid water content.
Jonathan Gregory made some constructive remarks, and, since then, nobody opposed. So, I would like to have these names added in the the next version of the official list. What is the proper procedure ? Is there some kind of formal proposal to write (a RFC) ? I recall hereafter what we came up to. Definition and size limits are my own, I couldn't find any definitive and authoritative numerical values, so I used "commonly accepted" ones. Do yous think that we should add "about" ou "approximately" before the numbers in the definition ? mass_concentration_of_cloud_liquid_water_in_air Mass concentration means mass per unit volume. Cloud_liquid_water means droplet that are not large enough to fall under common circonstances (up to 40 µm diameter). mass_concentration_of_drizzle_in_air Mass concentration means mass per unit volume. Drizzle means droplets with diameter between 40 and 700 µm. mass_concentration_of_rain_in_air Mass concentration means mass per unit volume. Rain means drops of diameter larger than 0.7 mm. This quantity corresponds to mass_fraction_of_rain_in_air (which is expressed as ratio of the mass of rain to the mass of air plus rain). mass_concentration_of_liquid_water_in_air Mass concentration means mass per unit volume. All kinds of droplets and drops are taken into account, whatever their sizes or falling speed. Bruno. -- Bruno PIGUET Mèl : [email protected] | GAME : URA CNRS & METEO-FRANCE Tel : +33 (0)5 61 07 96 59 | CNRM/GMEI/TRAMM Fax : +33 (0)5 61 07 96 27 | 42 Av. G. Coriolis Sec : +33 (0)5 61 07 96 63 | 31057 TOULOUSE cedex 1
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