Dear Randy Thanks for this proposal. If I understand it correctly, you divide time (and hence area) into day, night and something intermediate (twilight, I suppose). Since you have to define these three in terms of solar zenith angle, maybe it would be simpler to have just one standard_name. Looking at the guidelines, I think this quantity could reasonably be called probability_distribution_of_solar_zenith_angle with a coordinate of solar_zenith_angle as you say, but perhaps "probability" doesn't convey the right impression in this case. It could be called area_fraction_as_a_function_of_solar_zenith_angle We haven't used the phrase as_a_function_of before, although it's a common phrase, so I'm wondering if there is something we have used before that would convey the same meaning. Perhaps simply area_fraction_of_solar_zenith_angle would work?
Best wishes Jonathan > I would like to propose the following three standard names in support of > our environmental products generated from observation data. > > day_area_fraction > > "X_area_fraction" means the fraction of horizontal area occupied by X. > "X_area" means the horizontal area occupied by X within the grid cell. A > coordinate variable of solar_zenith_angle with boundaries indicating the > day extent should be specified. > > > > night_area_fraction > > "X_area_fraction" means the fraction of horizontal area occupied by X. > "X_area" means the horizontal area occupied by X within the grid cell. A > coordinate variable of solar_zenith_angle with boundaries indicating the > night extent should be specified. > > > > day_night_terminator_area_fraction > > "X_area_fraction" means the fraction of horizontal area occupied by X. > "X_area" means the horizontal area occupied by X within the grid cell. A > coordinate variable of solar_zenith_angle with boundaries indicating the > terminator extent should be specified. > > > > happy new year ! > > very respectfully, > > randy _______________________________________________ CF-metadata mailing list CF-metadata@cgd.ucar.edu http://mailman.cgd.ucar.edu/mailman/listinfo/cf-metadata
