The term total is often used to distinguish between the form of the mas fraction, i.e. total including dissolved and droplets, while the others refer to the respective fraction of dissolved or droplets.
With kind regards / med vennlig hilsen,
Ute
Ute Br?nner
Research Scientist
Direct phone (+47) 998 98 987
? ?Consider the environment before printing. Less print-outs, more trees, better planet.
-----Original Message-----
From: CF-metadata [mailto:cf-metadata-bounces at cgd.ucar.edu] On Behalf Of Jonathan Gregory
Sent: 30 June 2016 18:06
To: cf-metadata at cgd.ucar.edu
Subject: Re: [CF-metadata] New standard name for mass_fraction_of_petroleum_in_sea_water
Dear Mike
I agree that petroleum_hydrocarbons is more specific and therefore preferable.
Is it possible to omit "total", or does it have a specific meaning too and therefore convey some extra information? It would be good to be explicit if that is the case.
Best wishes
Jonathan
----- Forwarded message from mikegodino at yahoo.com -----
> Date: Thu, 30 Jun 2016 15:57:35 +0000
> From: mikegodino at yahoo.com
> To: "Lowry, Roy K." <rkl at bodc.ac.uk>, Ute Br?nner <Ute.Broenner at sintef.no>,
> "'cf-metadata at cgd.ucar.edu'" <cf-metadata at cgd.ucar.edu>
> CC: Petter R?nningen <Petter.Ronningen at sintef.no>, J?rgen Skancke
> <Jorgen.Skancke at sintef.no>, Tor Nordam <Tor.Nordam at sintef.no>, CJ
> Beegle-Krause <CJ.Beegle-Krause at sintef.no>
> Subject: Re: [CF-metadata] New standard name for
> mass_fraction_of_petroleum_in_sea_water
>
> Dear Ute and Roy,
> Thank you for your careful consideration and deliberation on my proposal. ?I would be satisfied by replacing "petroleum" in my original suggestion with either Ute's suggestion of "contaminant" or Roy's suggestion of "total_petroleum_hydrocarbons", although I find the latter a little more specific, particularly if one were to envision a situation in which intentionally released dispersants were being tracked at the same time and also categorized as "contaminants".
> As to the question of mass concentration vs. mass fraction, I am trying to represent the measurements of the?SeaOWL UV-A sensor (http://wetlabs.com/SeaOWL), which appears to be calibrated in units of ppm -- and hence mass fraction seems appropriate. ?The model that will assimilate these measurements is under active development, and may likely generate a mass concentration value. ?So perhaps there ought to be both?mass concentration AND mass fraction?standard names.
> Thank you,Mike Godin
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Received on Mon Jul 04 2016 - 08:44:37 BST
