Convective Cloud Optical Depth

[martinjuckes]

Convective Cloud Optical Depth should perhaps be defined as the area: mean where convective_cloud time: point, rather than the mean over the whole cell. This applies to the variable dtauc

Checking with CFmip.

[martinjuckes]

Similarly for stratiform cloud (area: mean where stratiform_cloud time: point)

[martinjuckes]

Also for demc, dems, though these are not requested for CMIP7 fast track.

[martinjuckes]

But see query about effective_radius_of_cloud_liquid_water_particles_at_liquid_water_cloud_top in cf-convention/vocabularies#52