[CF-metadata] OMIP standard_name surface_downward_mass_flux_of_carbon_dioxide

James Orr James.Orr at lsce.ipsl.fr
Thu May 18 00:46:59 MDT 2017


Paul and Allison,

I agree with John that the mole fluxes are prefered for ocean biogeochemistry.

Jim

On Wed, 17 May 2017, John Dunne - NOAA Federal wrote:

> The ocean folks prefer the mole definition.  There are atmos and land folks that prefer the kg definition, but that shouldn't
> dictate the ocean sheet.
> 
> On Wed, May 17, 2017 at 7:30 PM, Durack, Paul J. <durack1 at llnl.gov> wrote:
>       Thanks Alison,
>
>       I will defer to Jim and John on this one. I think consistency is the priority, along with making the data as useable
>       to the ocean biogeochemistry community as possible. I’m not sure what their preference of units is – they can reply.
>
>       Cheers,
>
>       P
>
>       On 5/15/17, 5:39 AM, "alison.pamment at stfc.ac.uk" <alison.pamment at stfc.ac.uk> wrote:
>
>           Dear Paul,
>
>           I've just had a look at the carbon dioxide surface flux names. Just to clarify, for your name
>       surface_downward_mass_flux_of_carbon_dioxide, I suggested that we use the existing name
>       surface_downward_mass_flux_of_carbon_dioxide_expressed_as_carbon which has canonical units of kg m-2 s-1. My
>       understanding was that the existing name would be suitable for your needs. Is that correct or do you need a different
>       quantity? As you say, we also have an existing name surface_downward_mole_flux_of_carbon_dioxide with units of mol
>       m-2 s-1 so you should choose the standard name with the appropriate units for your quantity.
>
>           For molecular oxygen and dimethyl sulphide we have introduced mole_flux names, however, we could also add
>       mass_flux names with units of kg m-2 s-1 if that is more useful for OMIP.
>
>           Please let me know if you need any additional names - these quantities are quite straight forward so I think we
>       could just add them as necessary in the next update of the table.
>
>           Best wishes,
>           Alison
>
>           ------
>           Alison Pamment                                                       Tel: +44 1235 778065
>           Centre for Environmental Data Analysis         Email: alison.pamment at stfc.ac.uk
>           STFC Rutherford Appleton Laboratory
>           R25, 2.22
>           Harwell Campus, Didcot, OX11 0QX, U.K.
> 
>
>           From: Durack, Paul J. [mailto:durack1 at llnl.gov]
>           Sent: 11 May 2017 20:49
>           To: cf-metadata at cgd.ucar.edu
>           Cc: Pamment, Alison (STFC,RAL,RALSP); John Dunne - NOAA Federal; James Orr
>           Subject: OMIP standard_name surface_downward_mass_flux_of_carbon_dioxide
>
>           In the large OMIP biogeochemistry request several carbon_dioxide names were requested. Of these
>       surface_downward_mass_flux_of_carbon_dioxide was rejected, as surface_downward_mole_flux_of_carbon_dioxide already
>       exists.
>
>           This relates to variables contained in the Biogeochemistry sheet - https://goo.gl/Fyr6QW
>
>           The rejection of this name has led to the situation where requested carbon_dioxide variables have different
>       units:
>
>           surface_downward_mole_flux_of_carbon_dioxide, mol m-2 s-1 (Omon, 162)
>           surface_downward_mass_flux_of_carbon_dioxide_natural_analogue_expressed_as_carbon, kg m-2 s-11 (Omon, 163)
>           surface_downward_mass_flux_of_carbon_dioxide_abiotic_analogue_expressed_as_carbon, kg m-2 s-11 (Omon, 164)
>           surface_downward_mass_flux_of_carbon14_dioxide_abiotic_analogue_expressed_as_carbon, kg m-2 s-11 (Omon, 165)
>           surface_downward_mass_flux_of_carbon13_dioxide_abiotic_analogue_expressed_as_carbon13, kg m-2 s-11 (Omon, 166)
>           surface_downward_mole_flux_of_molecular_oxygen, mol m-2 s-1 (Omon, 167)
>           surface_upward_mole_flux_of_dimethyl_sulfide, mol m-2 s-1 (Omon, 168)
>
>           I wonder if this can be reconsidered so there is some consistency between the carbon_dioxide standard names and
>       their units.
>
>           Cheers,
>
>           P
> 
> 
> 
> 
>

-- 
LSCE/IPSL, Laboratoire des Sciences du Climat et de l'Environnement
CEA-CNRS-UVSQ

LSCE/IPSL, CEA Saclay           http://www.ipsl.jussieu.fr/~jomce
Bat. 712 - Orme                 mailto:  James.Orr at lsce.ipsl.fr
Point courrier 132
F-91191 Gif-sur-Yvette Cedex    Phone:   (33) (0)1 69 08 39 73
FRANCE                          Fax:     (33) (0)1 69 08 30 73


More information about the CF-metadata mailing list