[CF-metadata] CMIP6 Sea Ice MIP: General variables

From: Dirk Notz <dirk.notz>
Date: Thu, 21 Jul 2016 15:42:42 +0200

Dear Jonathan,

>>>> 5. sea_ice_melt_pond_thickness [m]
>>>> the volume of water in meltponds divided by meltpond covered area

> Perhaps to be clear we could say something like "Thickness of melt pond.
> The cell_methods indicates whether it is a local thickness, an area-mean
> thickness or some other statistic."

This is good, thanks.

>>>> 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?
>>
>> Yes, it is. Do you believe that the definition should be changed?
>
> I wasn't clear what the quantity is. We already have a standard name of
> floating_ice_thickness, of which this is a special case. So we could use the
> existing name and distinguish this case in cell_methods with
> "area: mean where sea_ice_melt_pond". Would that be acceptable?

This would work, I hadn't seen that before, thanks.

>>>> 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]

> Thanks for explaining. We do already have some standard names with the longer
> phrase per_unit_area in them, so maybe that would be the best pattern to
> follow:
> sea_ice_[xy]_force_per_unit_area_due_to_X
> where X is sea_surface_tilt, coriolis_effect or internal_stress. Would
> that be correct and make sense?

This would be a good way of describing things. Hence, we'd suggest:

22. sea_ice_x_force_per_unit_area_due_to_sea_surface_tilt [N m-2]
23. sea_ice_y_force_per_unit_area_due_to_sea_surface_tilt [N m-2]
24. sea_ice_x_force_per_unit_area_due_to_coriolis_effect [N m-2]
25. sea_ice_y_force_per_unit_area_due_to_coriolis_effect [N m-2]
26. sea_ice_x_internal_stress [N m-2]
27. sea_ice_y_internal_stress [N m-2]

Best,

 Dirk
Received on Thu Jul 21 2016 - 07:42:42 BST