Thanks to you both. Roy's reference to 'dissolved oxygen' explains why the term would have been added, and Philip's argument for preserving this more narrow concept makes good sense to me. While I'm imaginging measures of mole_concentration…oxygen_in_sea_water might include some oxygen that is not 'dissolved', I think we can afford to wait for a future use case to make that change/addition.
John On May 18, 2013, at 09:18, "Cameron-smith, Philip" <[email protected]> wrote: > > Hi Roy, John, > > The methane bubbles are in both models and observations. Specifically, the > methane bubbles are measured using sonar reflectivity, and my colleagues are > trying to match those observations in a model. > > How much of the bubbles dissolve is of particular importance, and by their > nature it means that the total methane concentration (gas + dissolved) > exceeds methane solubility on some scale. > > Hence, it makes sense to me to keep 'dissolved' in the CF table for > consistency, precision, and future expansion into bubbles. > > Best wishes :-), > > Philip > > Sent by Philip Cameron-Smith from his blackberry. > > ----- Original Message ----- > From: Lowry, Roy K. [mailto:[email protected]] > Sent: Saturday, May 18, 2013 02:52 AM > To: Cameron-smith, Philip; '[email protected]' > <[email protected]>; '[email protected]' > <[email protected]> > Subject: RE: [CF-metadata] is molecular oxygen in seawater always dissolved? > > Hello Philip, > > Was that measured (John's area of concern) or a parameter in a numerical > simulation? > > Cheers, Roy. > > ________________________________________ > From: CF-metadata [[email protected]] On Behalf Of > Cameron-smith, Philip [[email protected]] > Sent: 18 May 2013 10:12 > To: '[email protected]'; '[email protected]' > Subject: Re: [CF-metadata] is molecular oxygen in seawater always dissolved? > > Hi John, > > I don't recall the original discussion. However, I do work on a problem > involving both dissolved methane and methane that is in bubbles, and the > distinction is critical, ie we need to know whether a plume of bubbles will > make it to the ocean surface. > > Best wishes, > > Philip > > Sent by Philip Cameron-Smith from his blackberry. > > ----- Original Message ----- > From: John Graybeal [mailto:[email protected]] > Sent: Friday, May 17, 2013 11:47 AM > To: CF Metadata List <[email protected]> > Subject: [CF-metadata] is molecular oxygen in seawater always dissolved? > > Hi all, > > I found an odd thing in one of the standard names, and I'm not sure if it's > exactly right or I need another name. > > For context: We (Marinexplore, new affiliation) are aggregating data from A > Lot of different sources. So this question is not about one specific > observation, but how to best represent all the observations we'll be working > with. > > The name is mole_concentration_of_dissolved_molecular_oxygen_in_sea_water. > There is no equivalent name without "dissolved", and I am wondering if a mole > concentration of molecular oxygen in sea water will always be dissolved? Or > should I request a name without that in it? (In the original CF email from > 2010 requesting this name "dissolved" did not appear, and it isn't clear from > the history what motivated its inclusion.) > > Thanks for your advice, and thanks to Alison for your research help. > > John > > > --------------------------------------------------- > John Graybeal > Senior Data Manager, Metadata and Semantics > > T +1 (408) 675-5545 > F +1 (408) 616-1626 > skype: graybealski > > Marinexplore > 920 Stewart Drive > Sunnyvale, CA > > _______________________________________________ > 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 > > This message (and any attachments) is for the recipient only. NERC is subject > to the Freedom of Information Act 2000 and the contents of this email and any > reply you make may be disclosed by NERC unless it is exempt from release > under the Act. Any material supplied to NERC may be stored in an electronic > records management system. > --------------- John Graybeal Marine Metadata Interoperability Project: http://marinemetadata.org [email protected] _______________________________________________ CF-metadata mailing list [email protected] http://mailman.cgd.ucar.edu/mailman/listinfo/cf-metadata
