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, "[email protected]" <[email protected]> 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: [email protected] STFC Rutherford Appleton Laboratory R25, 2.22 Harwell Campus, Didcot, OX11 0QX, U.K. From: Durack, Paul J. [mailto:[email protected]] Sent: 11 May 2017 20:49 To: [email protected] 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 _______________________________________________ CF-metadata mailing list [email protected] http://mailman.cgd.ucar.edu/mailman/listinfo/cf-metadata
