Dear Dirk Thanks for your proposals. Here are comments on some of them. The others are new and fit existing patterns, I think.
> 1. proportion_of_model_time_steps_with_sea_ice_fraction_above_threshold I suggest it would be better to make this less model-specific by calling it fraction_of_time_with_with_sea_ice_area_fraction_above_threshold where I have inserted "area" as well for consistency with the existing name sea_ice_area_fraction. > 2. sea_ice_mass_content [kg m-2] > describes the total mass of sea ice divided by grid-cell area. This is the same as the existing sea_ice_amount (the area by which it is divided is described by cell_methods, as in my other posting). > 5. sea_ice_melt_pond_thickness [m] > the volume of water in meltponds divided by meltpond covered area OK, with a similar cell_methods issue: I think by default this would be a local thickness, but it could be described as an area-mean. > 6. thickness_of_sea_ice_melt_pond_refrozen_ice [m] > the volume of refrozen ice in meltponds divided by meltpond covered area Is this ice floating on top of the meltpond? > 7. ridged_sea_ice_thickness [m] > total volume of ridged sea ice divided by area of ridges Instead of a new standard name, could this be described by sea_ice_thickness and "where" in cell_methods if we define a new area_type of ridged_sea_ice? > 11. surface_snow_sublimation_flux [kg m-2 s-1] > the rate of change of snow mass through sublimation and evaporation > divided by grid-cell area Unless you specifically want to *exclude* ice, this could use the existing surface_snow_and_ice_sublimation_flux. > 13. tendency_of_surface_snow_amount_due_to_ice_conversion [kg m-2 s-1] > the rate of change of snow mass due to transformation of snow to sea ice > divided by grid-cell area I feel that due_to_ice_conversion is not specific enough because it doesn't give the sense of the change. To be clear, would it be correct to say due_to_conversion_of_snow_to_sea_ice ? > 15. sea_ice_basal_downwelling_shortwave_flux_in_sea_water [W m-2] > the downwelling shortwave flux underneath sea ice (always positive) I think that downwelling_shortwave_flux_in_sea_water_at_sea_ice_base would be more natural because it's not really a property of the sea-ice. The sea-ice base is a level. > 16. sea_ice_basal_net_downward_sensible_heat_flux [W m-2] > the net sensible heat flux under sea ice from the ocean This has an existing name upward_sea_ice_basal_heat_flux. > 17. sea_ice_surface_net_downward_conductive_heat_flux [W m-2] > the net heat conduction flux at the ice surface > 18. sea_ice_basal_net_downward_conductive_heat_flux [W m-2] > the net heat conduction flux at the ice base We have an existing name of downward_heat_flux_in_sea_ice for the conductive flux within the ice. To be specific about the level, we could prefix surface_ for 17 and suffix basal_ for 18. > 19. salt_flux_into_sea_water_from_sea_ice [kg m-2 s-1] > Total flux of salt from water into sea ice divided by grid-cell area; > salt flux is upward (negative) during ice growth when salt is embedded > into the ice and downward (positive) during melt when salt from sea ice > is again released to the ocean This is like the existing name virtual_salt_flux_into_sea_water_due_to_sea_ice_thermodynamics isn't it, except not virtual. > 20. water_flux_into_sea_water_from_sea_ice [kg m-2 s-1] > Total flux of fresh water from water into sea ice divided by grid-cell > area; This flux is negative during ice growth (liquid water mass > decreases, hence upward flux of freshwater), positive during ice melt > (liquid water mass increases, hence downward flux of freshwater) I think this is the same as the existing water_flux_into_sea_water_due_to_sea_ice_thermodynamics > 21. surface_drag_coefficient_for_momentum_in_sea_water [1] > Oceanic drag coefficient that is used to calculate the oceanic momentum > drag on sea ice Should that be surface_ (which means the top of the atmosphere) or perhaps sea_ice_basal_? > 22. sea_ice_specific_x_force_due_to_sea_surface_tilt [N m-2] > 23. sea_ice_specific_y_force_due_to_sea_surface_tilt [N m-2] > 24. sea_ice_specific_x_force_due_to_coriolis_term [N m-2] > 25. sea_ice_spcecific_y_force_due_to_coriolis_term [N m-2] > 26. sea_ice_specific_x_force_due_to_internal_forces [N m-2] > 27. sea_ice_specific_y_force_due_to_internal_forces [N m-2] In other N m-2 = Pa names, we use "stress" rather than "specific force" but I suppose this is different because they are not fluxes of momentum, but divergences of momentum i.e. force per unit mass. Is "specific force" a usual term for this? Could we say "coriolis_effect" rather than "term", which sounds more algorithmic than geophysical? > 28. sea_ice_mass_transport_across_line [kg s-1] > "net (sum of transport in all directions) sea ice mass transport through > given passages, positive into the Arctic Ocean This exists under the name sea_ice_transport_across_line. Best wishes Jonathan _______________________________________________ CF-metadata mailing list [email protected] http://mailman.cgd.ucar.edu/mailman/listinfo/cf-metadata
