Re: [CF-metadata] Usage of histogram_of_X_over_Z

2016-10-27 Thread Jonathan Gregory
Dear Martin > In broad usage, I have the impression that a "histogram" can be expressed as > either a count or a percentage, so we should be explicit in the convention if > we want a narrower definition here. A narrower definition is probably needed, > as there would otherwise be no way of

Re: [CF-metadata] Usage of histogram_of_X_over_Z

2016-10-27 Thread martin.juckes
Dear Jonathan, thanks for that detailed overview. I accept your justification for having the the key physical quantity of interest in the standard name. In broad usage, I have the impression that a "histogram" can be expressed as either a count or a percentage, so we should be explicit in the

Re: [CF-metadata] Usage of histogram_of_X_over_Z

2016-10-13 Thread Bodas-Salcedo, Alejandro
Dear Martin, You are right, those definitions are not correct. > From your reply I understand now that these are univariate distributions > giving the > frequency of different radar reflectivities in different height bands. Coming > from > radar/lidar instruments (or an emulator of these

Re: [CF-metadata] Usage of histogram_of_X_over_Z

2016-10-13 Thread Bodas-Salcedo, Alejandro
Dear Martin, Thanks for your detailed explanation. I'd like to add a bit more information. These variables are not joint distributions, they are 1D distributions for different ranges of Z. The question is, does "histogram_of_X[_over_Z]" mean that the Z coordinate has to be completely