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[CF-metadata] propsed new due_to_process

From: Kettleborough, JA <J.A.Kettleborough>
Date: Fri, 6 May 2005 10:50:51 +0100

Hello Jonathan,

here are a few names we need to represent some of the HiGEM/HadGEM data

tendency_of_air_temperature_due_to_advection: K s-1
tendency_of_specific_humidity_due_to_advection: s-1
tendency_of_eastward_wind_due_to_advection: m s-2
tendency_of_northward_wind_due_to_advection: m s-2
tendency_of_upward_air_velocity_due_to_advection: m s-2
tendency_of_mass_fraction_of_cloud_liquid_water_in_air_due_to_advection: s-1
tendency_of_mass_fraction_of_cloud_ice_in_air_due_to_advection: s-1

tendency_of_air_temperature_due_to_diffusion: K s-1
tendency_of_specific_humidity_due_to_diffusion: s-1
tendency_of_eastward_wind_due_to_diffusion: m s-2
tendency_of_northward_wind_due_to_diffusion: m s-2
tendency_of_mass_fraction_of_cloud_liquid_water_in_air_due_to_diffusion: s-1
tendency_of_mass_fraction_of_cloud_ice_in_air_due_to_diffusion: s-1

surface_mass_flux_of_sulfur_dioxide_due_to_emissions: kg m-2 s-1
mass_flux_of_sulfur_dioxide_due_to_emissions: kg m-2 s-1
surface_mass_flux_of_dimethyl_sulfide_due_to_emissons: kg m-2 s-1

Jamie

> -----Original Message-----
> From: cf-metadata-bounces at cgd.ucar.edu
> [mailto:cf-metadata-bounces at cgd.ucar.edu]On Behalf Of Jonathan Gregory
> Sent: Thursday, May 05, 2005 10:29 PM
> To: cf-metadata at cgd.ucar.edu
> Subject: [CF-metadata] propsed new due_to_process
>
>
> Dear Jamie
>
> I think these processes do need to be named and we could add
> them now to the
> guidelines. However, I don't think we need to worry *too*
> much about it until
> you or someone else requests a standard_name which uses them.
> We could spend a
> lot of effort trying to foresee things in detail, and I think
> it's easier to
> wait until a need arises before we make definite decisions.
>
> I tend to feel as well that it doesn't matter if some phrases
> may cover a lot
> of things, so long as they are needed and can be defined.
> GCMs really do have
> processes "due to diffusion" which are comparable among
> models, so it is
> appropriate to use this phrase in standard names. However in
> other applications
> which identify various kinds of diffusion, more precise
> standard names would
> be used instead. The principal purposes of standard names are
> to facilitate
> comparison of data from different sources, and to distinguish
> the various
> quantities from any one source. We need only be as precise as
> these purposes
> require us to be.
>
> Best wishes
>
> Jonathan
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> CF-metadata at cgd.ucar.edu
> http://www.cgd.ucar.edu/mailman/listinfo/cf-metadata
>
Received on Fri May 06 2005 - 03:50:51 BST

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