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Cristina, > Only a further clarification: you can read in the CF convention "the > value of the units attribute is a string that can be recognized by > UNIDATA"s Udunits package [UDUNITS]". > So, in order to be compliant with CF specification I need to be sure > that "milligram" is recognized by UNIDATA"s Udunits package. > > Can you reassure me about this? The UDUNITS-2 package understands milligrams: $ udunits2 udunits2: Using default XML database You have: milligram You want: 1e-06 kg You have: > Best regards! > > cristina > > p.s. > About our data....you are right! if "milligram" is recognized by the > UDUUNITS, then we can use "milligram" as unit for our chlorophyll, > then we needn't make any change to our data, but simply put the > correct string into the "units" attribute for the variable CHL. > > p.p.s. > Sorry for my english! Don't be. Your English is vastly superior to my Italian! > ------------------------------------------------------------------- > Cristina Tronconi > Istituto di Scienze dell'Atmosfera e del Clima - sezione di Roma > Consiglio Nazionale delle Ricerche > Via Fosso del Cavaliere 100 > 00133 Roma, Italy > Tel: +39 06 49934342 > cell: '39 349 1242954 > Fax: +39 06 20660291 > e-mail: address@hidden Regards, Steve Emmerson Ticket Details =================== Ticket ID: UVU-592022 Department: Support UDUNITS Priority: Normal Status: Closed