Dear Stephen, On Thu, 2008-11-06 at 12:16 -0500, Stephen Griffies wrote:
> > > > (1) There are no standard_names including "laplacian" yet - it would > > seem to be the default (coeffs in m2/s). > > > > > > I introduced the "laplacian" name to distinguish from the "biharmonic" > now included in my proposed list. Are you suggesting to drop > "laplacian" and let that be the default, unless otherwise noted by a > "biharmonic" name? Indeed, that is just what is done in my list for > vertical mixing (in fact, I know of no ocean model that employs a > biharmonic operator for vertical mixing). In summary, I am not > strongly in favour one way or the other for the lateral, but initially > suggested the name "laplacian" to remain symmetric with the name > "biharmonic." I can readily drop this for the lateral if that is > strongly favoured. > As long as they don't clash with existing names that don't have laplacian in them, and as far as I can see they don't, I don't mind. > > > (2) There are lots of "ocean_vertical_..." diffusivities (see table); > > perhaps you need to to preface yours as "ocean_lateral_..." (I don't > > know; I'm no expert.) > > > > > Below again are the lateral SGS fields. For physical reasons, I do not > believe the added name "lateral" is needed, since there is already in > the proposed name a specification that encompasses more precisely what > the term "lateral" would otherwise provide. For example, > "ocean_tracer_bolus_laplacian_diffusivity" would not be more clearly > stated as "ocean_tracer_bolus_lateral_laplacian_diffusivity", since > there is physically no corresponding > "ocean_tracer_bolus_vertical_laplacian_diffusivity"; the term "bolus" is > sufficient. Likewise, "ocean_tracer_epineutral_biharmonic_diffusivity" > would not be better written as > "ocean_tracer_epineutral_lateral_biharmonic_diffusivity", since there is > no "ocean_tracer_epineutral_vertical_biharmonic_diffusivity"; the term > "epineutral" serves to fully specify the diffusivity. > > Fair enough. Regards, Ian. > Best, > Stephen > > > > LATERAL SUBGRID SCALE FIELDS > ocean_tracer_bolus_laplacian_diffusivity m2/s > ocean_tracer_bolus_biharmonic_diffusivity m2/s > ocean_tracer_epineutral_laplacian_diffusivity m2/s > ocean_tracer_epineutral_biharmonic_diffusivity m2/s > ocean_tracer_xy_laplacian_diffusivity m2/s > ocean_tracer_xy_biharmonic_diffusivity m4/s > tendency_of_ocean_eddy_kinetic_energy_content_due_to_bolus_transport W/m2 > ocean_momentum_xy_laplacian_diffusivity > m2/s > ocean_momentum_xy_biharmonic_diffusivity m4/s > ocean_kinetic_energy_dissipation_per_unit_area_due_to_xy_friction W/m2 -- Ian Culverwell B-2-81 Ocean and Sea Ice Modelling Met Office FitzRoy Road Exeter Devon EX1 3PB United Kingdom Tel: +44 (0)1392 884017 Fax: +44 (0)1392 885861 E-mail: [EMAIL PROTECTED] http://www.metoffice.gov.uk Met Office climate change predictions can now be viewed on Google Earth http://www.metoffice.gov.uk/research/hadleycentre/google/ _______________________________________________ CF-metadata mailing list [email protected] http://mailman.cgd.ucar.edu/mailman/listinfo/cf-metadata
