I'm likewise happy with either. I was shortly going to request names for
downward_mass_flux_of_particulate_matter_in_sea_water
downward_mass_flux_of_particulate_carbon_in_sea_water
downward_mass_flux_of_particulate_nitrogen_in_sea_water
downward_mass_flux_of_particulate_phosphorus_in_sea_water
which are pretty much the same things as Matthias is proposing, aside from the downward/sinking distinction.
I looked for downward_ and sinking_ fluxes, and found
3 downward_mass_flux (but no sinking_mass_flux)
7 sinking_mole_flux (but no downward_mole_flux)
It's a little goofy, but one could use downward for masses and sinking for moles....
john
On Oct 10, 2013, at 14:40, Matthias Lankhorst <mlankhorst at ucsd.edu> wrote:
> Hi everyone,
>
> John is making a good point: there are multiple CF standard_names already that
> go like "downward_..._flux_...", in contrast to the "sinking_..._flux_..."
> ones that I found.
>
> Should we eliminate one?
>
> I have no preference and ask everybody who does to chime in.
>
> I can see the benefits of having just one of the two wordings, but do not
> really care which one.
>
> Matthias
>
>
>> Date: Wed, 9 Oct 2013 17:17:21 -0700
>> From: John Graybeal <john.graybeal at marinexplore.com>
>> To: CF Metadata List <cf-metadata at cgd.ucar.edu>, OceanSITES Data
>> Management Team <oceansites-dmt at jcommops.org>
>> Subject: Re: [CF-metadata] standard names for sediment trap data
>> Message-ID: <13CC17BA-92E2-4181-BEAE-DF80080F3297 at marinexplore.com>
>> Content-Type: text/plain; charset=us-ascii
>>
>> Hi Matthias! I support the direction of this request.
>>
>> I note the resemblance to the 'downward_mass_flux_...' standard names
>> recently requested, and I have assumed that phrase is a common CF way of
>> saying the same thing. (Oddly, I missed the sinking_ ones when
>> formulating my request.)
>>
>> Perhaps we should see if one or the other is more dominant and move toward
>> a single phrasing?
>>
>> With regard to units, I think the list would say 'request what you use and
>> need'. Some people will measure mole_flux, some will measure mass_flux.
>> (No?)
>>
>> John
>>
>> On Oct 9, 2013, at 16:16, Matthias Lankhorst <mlankhorst at ucsd.edu> wrote:
>>> Dear CF community,
>>>
>>>
>>>
>>> in the OceanSITES project, we would like to publish data from sediment
>>> traps in files, using the CF conventions. Sediment traps are devices
>>> moored underwater in the ocean, which collect sinking particles
>>> (detritus) in a funnel and into sample bottles for later analyses.
>>> Analyses can be done for a variety of substances. It looks like we need
>>> a few more standard names for these, and possibly a discussion whether
>>> some of them should be expressed as mass fluxes or as substance amount
>>> (mole) fluxes.
>>>
>>>
>>>
>>> I noticed that CF already has these standard names, all as mole fluxes
>>> with
>>>
>>> canonical units of mol m-2 s-1:
>>>
>>>
>>> sinking_mole_flux_of_aragonite_expressed_as_carbon_in_sea_water
>>> sinking_mole_flux_of_calcite_expressed_as_carbon_in_sea_water
>>> sinking_mole_flux_of_particulate_iron_in_sea_water
>>> sinking_mole_flux_of_particulate_organic_matter_expressed_as_carbon_in_se
>>> a_water sinking_mole_flux_of_particulate_organic_nitrogen_in_sea_water
>>> sinking_mole_flux_of_particulate_organic_phosphorus_in_sea_water
>>> sinking_mole_flux_of_particulate_silicon_in_sea_water
>>>
>>>
>>>
>>> Here is the list of quantities that we need to address in OceanSITES. My
>>> initial proposal is to introduce them all as mass fluxes with canonical
>>> units of kg m-2 s-1. If we should rather go with mole fluxes like the
>>> ones above, please chime in.
>>>
>>>
>>>
>>> Total/organic mass:
>>> Propose new standard names:
>>> sinking_mass_flux_of_particulate_matter_in_sea_water
>>> sinking_mass_flux_of_particulate_organic_matter_in_sea_water
>>> (I suppose these are understood as dry mass, i.e. weighed after water
>>> has evaporated.)
>>>
>>>
>>>
>>> Particulate organic, inorganic, total carbon:
>>> Propose new standard names:
>>> sinking_mass_flux_of_particulate_organic_carbon_in_sea_water
>>> sinking_mass_flux_of_particulate_inorganic_carbon_in_sea_water
>>> sinking_mass_flux_of_particulate_carbon_in_sea_water
>>> (or should we include "total" somewhere in the latter?)
>>>
>>>
>>>
>>> Particulate organic, inorganic, total nitrogen:
>>> Propose new standard names:
>>> sinking_mass_flux_of_particulate_organic_nitrogen_in_sea_water
>>> sinking_mass_flux_of_particulate_inorganic_nitrogen_in_sea_water
>>> sinking_mass_flux_of_particulate_nitrogen_in_sea_water
>>> (or should we include "total" somewhere in the latter?)
>>>
>>>
>>>
>>> Other particulate substances from a list:
>>> Propose new standard names for each of the following, to be constructed
>>> as: sinking_mass_flux_of_particulate_XXX_in_sea_water,
>>> where XXX is:
>>> - aluminum
>>> - iron
>>> - phosphorous
>>> - silica
>>> - biogenic_silica
>>> - lithogenic_silica
>>> - calcium
>>> - titanium
>>> - manganese
>>> - barium
>>> - magnesium
>>>
>>>
>>>
>>> Your expert comments are highly appreciated!
>>>
>>>
>>>
>>> Respectfully, Matthias
>>>
>>>
>>>
>>>
>>> --
>>> _______________________________________
>>>
>>>
>>>
>>> Dr. Matthias Lankhorst
>>> Scripps Institution of Oceanography
>>> 9500 Gilman Drive, Mail Code 0230
>>> La Jolla, CA 92093-0230
>>> USA
>>>
>>>
>>>
>>> Phone: +1 858 822 5013
>>> Fax: +1 858 534 9820
>>> E-Mail: mlankhorst at ucsd.edu
>>> http://www-pord.ucsd.edu/~mlankhorst/
>>> _______________________________________________
>>> CF-metadata mailing list
>>> CF-metadata at cgd.ucar.edu
>>> http://mailman.cgd.ucar.edu/mailman/listinfo/cf-metadata
>>
>> ------------------------------------
>> 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
>
> --
> _______________________________________
>
> Dr. Matthias Lankhorst
> Scripps Institution of Oceanography
> 9500 Gilman Drive, Mail Code 0230
> La Jolla, CA 92093-0230
> USA
>
> Phone: +1 858 822 5013
> Fax: +1 858 534 9820
> E-Mail: mlankhorst at ucsd.edu
> http://www-pord.ucsd.edu/~mlankhorst/
> _______________________________________________
> CF-metadata mailing list
> CF-metadata at cgd.ucar.edu
> http://mailman.cgd.ucar.edu/mailman/listinfo/cf-metadata
>
---------------
John Graybeal
Marine Metadata Interoperability Project:
http://marinemetadata.org
graybeal at marinemetadata.org
Received on Thu Oct 10 2013 - 15:51:06 BST
