Dear John and Nan Thanks for your contributions. I agree that the final phrase from_saturation is a bit awkward; I couldn't think of a better place for it, but John's pointing out the use of "deficit" elsewhere is useful. That also raises the question of the sign of the difference. I think "difference of A from B" means A-B (not B-A) but it maybe that wasn't what Ajay meant, and it should be clear, which could be done with "signed" words.
Also, I omitted "moles" by accident - sorry! Here's a new suggestion, a compound of John's and mine: excess_wrt_saturation_of_moles_of_oxygen_per_unit_mass_in_sea_water or deficit_wrt_saturation_of_moles_of_oxygen_per_unit_mass_in_sea_water depending on what the intended sign is. Cheers Jonathan ----- Forwarded message from John Graybeal <[email protected]> ----- > Date: Thu, 15 Jan 2015 13:41:08 -0800 > From: John Graybeal <[email protected]> > To: CF Metadata List <[email protected]> > Subject: Re: [CF-metadata] Request for new standard-name: > apparent_oxygen_utilization > X-Mailer: Apple Mail (2.1878.6) > > Three thoughts: > > (1) Other suggestions for the name: > oxygen_saturation_deficit_in_sea_water_per_unit_mass, or > oxygen_saturation_deficit_moles_per_unit_mass_in_sea_water. (Because the > following two look analogous: fractional_saturation_of_oxygen_in_sea_water > (being only in different units), and water_vapor_saturation_deficit_in_air; > and because might other base units also need to be differentiated?) > > (2) If we really like the proposed construction, having 'from_saturation' as > the final phrase feels a bit off/hard to parse. I keep wanting to say from > saturation of what? Perhaps just ignorance of a non-scientist. > > (3) (Just because we have not addressed this possibility explicitly.) I can > imagine needing a term that really means apparent_oxygen_utilization, namely > comparing an observation where oxygen is being utilized (e.g, by an > organism), to a case where it is not. In which case, a definition presumably > could focus clearly on that difference. > > John > > --------------- > John Graybeal > Marine Metadata Interoperability Project: http://marinemetadata.org > MMI Ontology Registry and Repository: http://mmisw.org/orr > > > On Jan 15, 2015, at 10:02, Jonathan Gregory <[email protected]> wrote: > > > Dear Ajay > > > > I hadn't replied because I'm not an expert in this subject. On general > > grounds, > > following the usual approach of CF standard names, I'd suggest that > > something > > more self-explanatory would be better than apparent_oxygen_utilization. > > Given > > your definition of what it means > > > >>> definition: the difference between saturation oxygen content and observed > >>> oxygen content. > > > > what about > > difference_of_oxygen_per_unit_mass_in_sea_water_from_saturation > > We have other standard names with "difference" in them, for example > > difference_of_air_pressure_from_model_reference > > and we have quantities in mol kg-1, for instance > > moles_of_oxygen_per_unit_mass_in_sea_water > > and I'm basing my suggestion on those. > > > > The canonical unit for the standard name table should be mol kg-1, but you > > could have micromol kg-1 as your units, since they're physically equivalent. > > > > Cheers > > > > Jonathan > > > > > > ----- Forwarded message from Ajay Krishnan - NOAA Affiliate > > <[email protected]> ----- > > > >> From: Ajay Krishnan - NOAA Affiliate <[email protected]> > >> Date: Wed, 14 Jan 2015 11:54:17 -0500 > >> To: [email protected] > >> Subject: Re: [CF-metadata] Request for new standard-name: > >> apparent_oxygen_utilization > >> > >> Hi All, > >> > >> I had requested for a new standard name for apparent_oxygen_utilization > >> during the last week of November. Since, there have been no discussions on > >> it, I wanted to quickly > >> follow up on it. > >> > >> Thanks, > >> Ajay > >> > >> On Mon, Nov 24, 2014 at 2:16 PM, Ajay Krishnan - NOAA Affiliate < > >> [email protected]> wrote: > >> > >>> Dear CF community, > >>> > >>> On behalf of NODC, I would like to request for a new standard name: > >>> > >>> apparent_oxygen_utiliziation (AOU) > >>> definition: the difference between saturation oxygen content and observed > >>> oxygen content. > >>> units: micromoles/kg > >>> > >>> > >>> Description is from Broecker and Peng, 1982, Tracers in > >>> the Sea > >>> http://www.ldeo.columbia.edu/~broecker/Home_files/ > >>> TracersInTheSea_searchable.pdf > >>> (pp 131-138) > >>> > >>> Some more detail in Garcia et al., World Ocean Atlas > >>> Volume 3: Dissolved Oxygen, Apparent Oxygen Utilization, and > >>> Oxygen Saturation. > >>> http://data.nodc.noaa.gov/woa/WOA13/DOC/woa13_vol3.pdf > >>> > >>> Thanks, > >>> Ajay > >>> > > > >> _______________________________________________ > >> CF-metadata mailing list > >> [email protected] > >> http://mailman.cgd.ucar.edu/mailman/listinfo/cf-metadata > > > > > > ----- End forwarded message ----- > > _______________________________________________ > > 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 ----- End forwarded message ----- _______________________________________________ CF-metadata mailing list [email protected] http://mailman.cgd.ucar.edu/mailman/listinfo/cf-metadata
