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" <rkl at bodc.ac.uk>
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: cf-metadata-bounces at cgd.ucar.edu [mailto:cf-metadata-
> bounces at cgd.ucar.edu] On Behalf Of Philip J. Cameronsmith1
> Sent: 28 April 2010 23:04
> To: alison.pamment at stfc.ac.uk
> Cc: Keith Lindsay; CF-metadata email list; John.Dunne at noaa.gov
> 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, alison.pamment at stfc.ac.uk 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:
> alison.pamment at stfc.ac.uk> Chilton, Didcot, OX11 0QX, U.K.
> >
> >
> >> -----Original Message-----
> >> From: cf-metadata-bounces at cgd.ucar.edu [mailto:cf-metadata-
> >> bounces at cgd.ucar.edu] 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>> pjc at llnl.gov 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 <klindsay at ucar.edu>
> >> To: Philip J. Cameronsmith1 <cameronsmith1 at llnl.gov>
> >> Cc: John.Dunne at noaa.gov, Ernst Maier-Reimer <ernst.maier-
> >> reimer at zmaw.de>,
> >> Corinne Le Quere <C.Lequere at uea.ac.uk>,
> >> Bruce Hackett <bruce.hackett at met.no>,
> >> Thomas LOUBRIEU <Thomas.Loubrieu at ifremer.fr>,
> >> Laurent Bopp <laurent.bopp at lsce.ipsl.fr>,
> >> Pierre Friedlingstein <pierre.friedlingstein at lsce.ipsl.fr>,
> >> James Orr <J.Orr at iaea.org>, Laurence Crosnier
> > <lcrosnier at mercator-
> >> ocean.fr>,
> >> Chris Jones <chris.d.jones at metoffice.gov.uk>, cf-
> >> metadata at ucar.edu,
> >> Karl Taylor <taylor13 at llnl.gov>, Yann BARZIC
> >> <Yann.Barzic at ifremer.fr>
> >> 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:
> klindsay at ucar.edu phone: 303-497-1722 fax: 303-497-1700
> >> _______________________________________________
> >> CF-metadata mailing list
> >> CF-metadata at cgd.ucar.edu
> >> http://*mailman.cgd.ucar.edu/mailman/listinfo/cf-metadata
> > --
> > Scanned by iCritical.
> >
>
> --------------------------------------------------------------------
> ----
> Dr Philip Cameron-Smith Atmospheric, Earth, and Energy Division
> pjc at llnl.gov Lawrence Livermore National Laboratory
> +1 925 4236634 7000 East Avenue, Livermore,
> CA94550, USA
> --------------------------------------------------------------------
> ----
> _______________________________________________
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> CF-metadata at cgd.ucar.edu
> http://mailman.cgd.ucar.edu/mailman/listinfo/cf-metadata
>
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Received on Thu Apr 29 2010 - 07:10:08 BST
