Dear Jonathan,
A minor point - should be distance_from_geocenter as established practice is to use US spellings.
Cheers, Roy.
________________________________________
From: Jonathan Gregory [j.m.gregory at reading.ac.uk]
Sent: 27 November 2014 14:17
To: cf-metadata at cgd.ucar.edu
Subject: Re: [CF-metadata] Standard Names for: Ocean Kinetic Energy and Relative Vorticity
Dear Napoleon
> Ocean Kinetic Energy
> standard name: ocean_kinetic_energy
> unit: m2 s-2
With those units, this is specific kinetic energy i.e. per unit mass. There is
an existing stdname for this quantity viz specific_kinetic_energy_of_sea_water.
> Ocean Relative Vorticy
> standard name: ocean_relative_vorticity
> unit: s-1
That's analogous to atmosphere_relative_vorticity so I think it's fine.
> Gravity Potential Gradient
> standard name: gravity_potential_gradient
> unit: s-2
There is an existing stdname of specific_gravitational_potential_energy
in J kg-1 = m2 s-2. Since taking a gradient has a sign and direction, your
quantity could be called
upward_derivative_of_specific_gravitational_potential_energy
for consistency with other names for derivatives, and it's in m s-2, isn't it?
- not s-2. However this quantity could also, more familiarly, be called the
acceleration_due_to_gravity i.e. g. Is it g you mean? I suppose g is the
vertical derivative of geopotential, which isn't quite the same as GPE. Are
you making a distinction here?
> Radius from Geocenter
> standard_name: radius_from_geocenter
> unit: m
I would suggest calling this distance_from_geocentre. A radius is a property
of a geometrical figure, not a distance between two points.
Best wishes
Jonathan
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Received on Thu Nov 27 2014 - 07:29:38 GMT
