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[CF-metadata] Standard names for ocean parameters

From: Olivier Lauret <olauret>
Date: Mon, 10 Dec 2007 15:17:12 +0100

Dear Jonathan,

Thank you for your light. It seems that my requests can be used as
tests/experiments relating to the "cell_methods" proposal. If my
understanding is correct it basically means that we have to remove
"sea_ice..where_sea_ice" and replace it by something like:


Sea_ice_x_velocity (lat,lon)
Sea_ice_x_velocity:standard_name=" sea_ice_x_velocity"
Sea_ice_x_velocity:cell_methods= ? area:sea ice ?

..in the case of "sea_ice_x_velocity_where_sea_ice"

Is that right?

About "ocean_vertical_eddy_diffusivity" I mean vertical eddy diffusion
coefficient [in ocean], do you mean that is it too ambiguous in CF? (Having
a look on CF standard name I noticed that in atmosphere there are
"atmosphere_heat_diffusivity" and "atmosphere_momentum_diffusivity")

Thank you

Olivier.
-----Message d'origine-----
De?: cf-metadata-bounces at cgd.ucar.edu
[mailto:cf-metadata-bounces at cgd.ucar.edu] De la part de Jonathan Gregory
Envoy??: vendredi 7 d?cembre 2007 18:35
??: cf-metadata at cgd.ucar.edu
Objet?: [CF-metadata] Standard names for ocean parameters

Dear Olivier

> ocean mean dynamic topography.
Do you mean a time-mean? If so, this can be described by cell_methods as
well,
by including "TIME: mean", where TIME is the name of the time dimension.

> ? ocean_vertical_eddy_diffusivity, m2/s
I think we will need to be careful about what "eddy" means. Can you clarify
what you imply by "eddy"?

> ? sea_ice_x_velocity_where_sea_ice , m/s
> ? sea_ice_y_velocity_where_sea_ice, m/s
> ? sea_ice_area_fraction_where_sea_ice, no units
> ? sea_ice_thickness_where_sea_ice, m
> ? sea_ice_downward_x_stress_where_sea_ice, Pa
> ? sea_ice_downward_y_stress_where_sea_ice , Pa

These "where" quantities would be unnecessary in my proposal
http://cf-pcmdi.llnl.gov/trac/ticket/17
because the "where" part would be included in cell_methods.

Best wishes

Jonathan
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Received on Mon Dec 10 2007 - 07:17:12 GMT

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