Dear Jim > We are attempting to follow section 9. The centroid of the weather system is > calculated at each time step, and we are planning to use the longitude and > latitude calculated as the coordinates of the system. So, for example, would > the variables below be OK? (I?ve left out time and numerous other variables.) > > float lat(trajectory, obs) > :standard_name = ?latitude? > :axis = ?Y? > :cell_methods = ?latitude:mean (over system)? > > float lon(trajectory, obs) > :standard_name = ?longitude? > :axis = ?X? > :cell_methods = ?longitude:mean (over system)? > > float maxlat(trajectory, obs) > :cell_methods = ?latitude:maximum (over system)" > > float mtpwv(trajectory, obs) > :long_name = ?mean total precipitable water vapor? > :cell_methods = ?area:mean (over system)?
I think the approach is OK but I would suggest for latitude and longitude "area: mean (over system)" and for maxlat "area: maximum (over system)". These indicate statistics of lat and lon which are calculated from the variation over the area of the system. Is that what you intend? The cell_methods is a blank- separated list of words, so there's a space after ":". Cheers Jonathan _______________________________________________ CF-metadata mailing list [email protected] http://mailman.cgd.ucar.edu/mailman/listinfo/cf-metadata
