Dear Jonathan, A minor point - should be distance_from_geocenter as established practice is to use US spellings.
Cheers, Roy. ________________________________________ From: Jonathan Gregory [[email protected]] Sent: 27 November 2014 14:17 To: [email protected] 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 _______________________________________________ CF-metadata mailing list [email protected] http://mailman.cgd.ucar.edu/mailman/listinfo/cf-metadata This message (and any attachments) is for the recipient only. NERC is subject to the Freedom of Information Act 2000 and the contents of this email and any reply you make may be disclosed by NERC unless it is exempt from release under the Act. Any material supplied to NERC may be stored in an electronic records management system. _______________________________________________ CF-metadata mailing list [email protected] http://mailman.cgd.ucar.edu/mailman/listinfo/cf-metadata
