Mark, Logarithmic units need a reference level in order to support numerical conversions; "dB" doesn't have one. A decibel unit with a one milliwatt reference level would be "0.1 lg(re 1 mW)".
Regards, Steven Emmerson Software Developer Unidata Program Center University Corporation for Atmospheric Research On Wed, May 29, 2013 at 4:31 AM, Hedley, Mark <[email protected]>wrote: > Hello CF > > A few standard names: > > sound_intensity_level_* > sound_pressure_level_* > > have a stated canonical units of dB. I think valid units in CF are > defined by udunits2. > > My install of udunits (udunits2-2.1.24) does not recognise dB as a valid > units string. > > Is this an issue for the CF standard names maintainers or for the udunits > maintainers? > > thank you > mark > > > _______________________________________________ > CF-metadata mailing list > [email protected] > http://mailman.cgd.ucar.edu/mailman/listinfo/cf-metadata > >
_______________________________________________ CF-metadata mailing list [email protected] http://mailman.cgd.ucar.edu/mailman/listinfo/cf-metadata
