Another suggestion would be 'net_primary_mole_productivity_of_carbon_utilizing_nitrate'. I agree that 'due_to_nitrate' doesn't really mean much in this instance given that it is the phytoplankton that are the causal factor, not the nitrate per se.
----- Original Message ----- From: "Lowry, Roy K" <[email protected]> Date: Thursday, April 29, 2010 6:35 am Subject: RE: [CF-metadata] BGC output for CMIP5 simulations (fwd) > Hello Philip/Alison > > Couple of points. > > (1) Radicals are more of relevance to the atmosphere than water > bodies so I don't think confusion between them and ions is an > issue. As standard names are becoming incorporated into URLs, the > '+' character is best avoided. Also without semantic support > (which is coming), very few datasets labelled 'NO3-' would get > found as most oceanographers would search for 'nitrate' > > (2) > 'net_primary_mole_productivity_of_carbon_due_to_nitrate_consumption' or 'net_primary_mole_productivity_of_carbon_due_to_nitrate_nutrition' would get around Alison's issue. 'due_to_nitrate' is simply lazy speak for the process. > > Cheers, Roy. > > -----Original Message----- > From: [email protected] [mailto:cf-metadata- > [email protected]] On Behalf Of Philip J. Cameronsmith1 > Sent: 28 April 2010 23:04 > To: [email protected] > Cc: Keith Lindsay; CF-metadata email list; [email protected] > Subject: Re: [CF-metadata] BGC output for CMIP5 simulations (fwd) > > > Hi Alison, > > Thanks for your email. > > I am not an expert on ecosystems, and so will defer to those who are. > > I had assumed that the variable was for carbon production CAUSED by > nitrate through some process, in which case _due_to_ seemed to me > to be > appropriate. > > Going back to your spreadsheet, I see that the description for > net_new_primary_mole_productivity_of_carbon was 'Vertically > integrated > primary (organic carbon) production by phytoplankton based on NO3 > alone'.So now I'm not so sure, and need guidance from an expert. > > Is this quantity just being calculated using nitrate as a proxy > data > source, or is it production caused by nitrate? > > BTW, we might consider replacing NO3 and NH4 in the description > with > 'nitrate' and 'ammonium', or 'NO3-' and 'NH4+', or making it > unambiguous > in some other way, that these are ions and not radicals. > Admittedly, this > is probably obvious to most people with some familiarity with the > chemistry or biology, but we might as well be precise. > > Best wishes, > > Philip > > On Wed, 28 Apr 2010, [email protected] wrote: > > > Dear Philip, > > > > Thanks very much for forwarding these emails to the list and > sorry for > > not picking up on this thread sooner. > > > > The standard names > > > tendency_of_mole_concentration_of_particulate_organic_matter_expressed_a> s_carbon_in_sea_water_due_to_net_new_primary_production; mol m-3 s-1 > > net_new_primary_mole_productivity_of_carbon; mol m-2 s-1 > > were accepted after discussion in the 'CMIP5 ocean biogeochemistry > > standard names' thread. > > > > However, the name > > net_primary_mole_productivity_of_carbon_due_to_nitrate > > is now being proposed for the second quantity because there is some > > confusion as to the precise meaning of 'new' production. > > > > As the accepted names have not yet been added to the standard > name table > > I think we could change them provided everyone agrees. Both names > should> be changed to be consistent with one another. The phrase > 'due_to' is > > reserved in standard names for describing a process, e.g. > > 'due_to_convection', so 'due_to_nitrate' doesn't really fit that > > pattern. Would > > > net_primary_mole_productivity_of_carbon_from_nutrients_containing_nitrat> e > > or just > > net_primary_mole_productivity_of_carbon_from_nitrate_nutrients > > be an accurate description? > > > > The first name could then be changed to > > > tendency_of_mole_concentration_of_particulate_organic_matter_expressed_a> s_carbon_in_sea_water_due_to_net_primary_production_from_{nutrients_cont > > aining_nitrate}|{nitrate_nutrients}. > > > > Perhaps John Dunne could also comment on these ideas. > > > > Best wishes, > > Alison > > > > ------ > > Alison Pamment Tel: +44 1235 778065 > > NCAS/British Atmospheric Data Centre Fax: +44 1235 446314 > > Rutherford Appleton Laboratory Email: > [email protected]> Chilton, Didcot, OX11 0QX, U.K. > > > > > >> -----Original Message----- > >> From: [email protected] [mailto:cf-metadata- > >> [email protected]] On Behalf Of Philip J. Cameronsmith1 > >> Sent: 22 April 2010 00:05 > >> To: CF-metadata email list > >> Subject: Re: [CF-metadata] BGC output for CMIP5 simulations (fwd) > >> > >> > >> Hi, > >> > >> It appears that the wrong email address for the CF list was used > for>> some > >> of the emails in the conversation below. Hence, I am forwarding > the>> final email for the record. > >> > >> Best wishes, > >> > >> Philip > >> > >> > > ------------------------------------------------------------------ > ----- > >> - > >> Dr Philip Cameron-Smith Atmospheric, Earth, and Energy > Division>> [email protected] Lawrence Livermore > National Laboratory > >> +1 925 4236634 7000 East Avenue, Livermore, > CA94550,>> USA > >> > > ------------------------------------------------------------------ > ----- > >> - > >> > >> ---------- Forwarded message ---------- > >> Date: Wed, 21 Apr 2010 13:15:39 > >> From: Keith Lindsay <[email protected]> > >> To: Philip J. Cameronsmith1 <[email protected]> > >> Cc: [email protected], Ernst Maier-Reimer <ernst.maier- > >> [email protected]>, > >> Corinne Le Quere <[email protected]>, > >> Bruce Hackett <[email protected]>, > >> Thomas LOUBRIEU <[email protected]>, > >> Laurent Bopp <[email protected]>, > >> Pierre Friedlingstein <[email protected]>, > >> James Orr <[email protected]>, Laurence Crosnier > > <lcrosn...@mercator- > >> ocean.fr>, > >> Chris Jones <[email protected]>, cf- > >> [email protected], > >> Karl Taylor <[email protected]>, Yann BARZIC > >> <[email protected]> > >> Subject: Re: [CF-metadata] BGC output for CMIP5 simulations > >> > >> On Wed, 21 Apr 2010, Philip J. Cameronsmith1 wrote: > >> > >>> Hi Keith, et al. > >>> > >>> By no3 I assume you mean the negatively charged nitrate ion > (NO3-). > >> In which > >>> case I recommend using 'nitrate' in the standard name instead of > >> 'no3'. This > >>> will then be consistent with existing standard names, and avoid > >> confusion > >>> with the uncharged nitrate radical (NO3). > >>> > >>> In looking at the standard name table I think it would also be > more>>> consistent to use _due_to_ instead of _from_. The latter > is mainly > >> used for > >>> physical directions, eg _into_sea_water_from_rivers, while the > > former > >> is > >>> mainly used when when the quantity is changing _due_to_ another > >> process, eg > >>> tendency_of_air_temperature_due_to_shortwave_heating. > >>> > >>> Hence, I suggest you consider the following: > >>> > >>> net_primary_mole_productivity_of_carbon_due_to_nitrate > >>> > >>> Best wishes, > >>> > >>> Philip > >>> > >> > >> Philip, > >> > >> Thanks for the feedback. Your comments are on target. I propose > going>> with your > >> standard name. > >> > >> Keith > >> > >> ****************************************************************** > >> Keith Lindsay > http://**www.**cgd.ucar.edu/oce/klindsay/>> email: > [email protected] phone: 303-497-1722 fax: 303-497-1700 > >> _______________________________________________ > >> CF-metadata mailing list > >> [email protected] > >> http://*mailman.cgd.ucar.edu/mailman/listinfo/cf-metadata > > -- > > Scanned by iCritical. > > > > -------------------------------------------------------------------- > ---- > Dr Philip Cameron-Smith Atmospheric, Earth, and Energy Division > [email protected] Lawrence Livermore National Laboratory > +1 925 4236634 7000 East Avenue, Livermore, > CA94550, USA > -------------------------------------------------------------------- > ---- > _______________________________________________ > 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. > > _______________________________________________ CF-metadata mailing list [email protected] http://mailman.cgd.ucar.edu/mailman/listinfo/cf-metadata
