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[CF-metadata] Proposal of standard names for cloud/precip?properties

From: Alejandro Bodas-Salcedo <alejandro.bodas>
Date: Tue, 17 Mar 2009 08:47:03 +0000

Dear Jonathan,

Please see the updated list below, which incorporates the changes you
suggested.

- cloud_albedo [1]
- atmosphere_optical_thickness_due_to_cloud [1]
- atmosphere_optical_thickness_due_to_stratiform_cloud [1]
- atmosphere_optical_thickness_due_to_convective_cloud [1]
- cloud_longwave_emissivity [1]
- stratiform_cloud_longwave_emissivity [1]
- convective_cloud_longwave_emissivity [1]
- surface_longwave_emissivity [1]
- toa_brightness_temperature_assuming_clear_sky [K]
- toa_brightness_temperature [K]
- toa_bidirectional_reflectance [1]
- large_scale_graupel_flux [kg m-2 s-1]
- sunlit_binary_mask [1] (1=day,0=night)

All the effective radius in [m]:
- effective_radius_of_stratiform_cloud_liquid_water_particle
- effective_radius_of_stratiform_cloud_ice_particle
- effective_radius_of_convective_cloud_liquid_water_particle
- effective_radius_of_convective_cloud_ice_particle
- effective_radius_of_stratiform_cloud_graupel_particle
- effective_radius_of_stratiform_cloud_rain_particle
- effective_radius_of_stratiform_cloud_snow_particle
- effective_radius_of_convective_cloud_rain_particle
- effective_radius_of_convective_cloud_snow_particle

This two with units [m-1 sr-1]:
volume_attenuated_backwards_scattering_function_in_air
volume_attenuated_backwards_scattering_function_in_air_assuming_no_aerosol_or_cloud

- backscattering_ratio [1] (This is the ratio of the two above)
- equivalent_reflectivity_factor [dB]
- radiation_frequency [s-1]
-
histogram_of_equivalent_reflectivity_factor_over_height_above_reference_ellipsoid [1]
-
histogram_of_backscattering_ratio_over_height_above_reference_ellipsoid
[1]


Regards,

Alejandro


On Fri, 2009-03-13 at 17:18 +0000, Jonathan Gregory wrote:
> Dear Alejandro
>
> > Well, I was trying to make things easier for modelling groups.
> Yes, I understand. Nonetheless it would be more consistent with most quantities
> to give them separate names.
>
> > - effective_radius_of_stratiform_cloud_liquid_water
> > - effective_radius_of_stratiform_cloud_ice
> > - effective_radius_of_convective_cloud_liquid_water
> > - effective_radius_of_convective_cloud_ice
> > - effective_radius_of_stratiform_cloud_graupel
> > - effective_radius_of_stratiform_cloud_rainfall
> > - effective_radius_of_stratiform_cloud_snowfall
> > - effective_radius_of_convective_cloud_rainfall
> > - effective_radius_of_convective_cloud_snowfall
>
> I think _particle is needed. For liquid "droplet" would be usual, but
> "particle" is not impossible! Also, probably _fall can be omitted.
>
> > "molecular" means considering a molecular atmosphere (no clouds, no
> > aerosols). I'm not sure how to code this in the name, as
> > "assuming_clear_sky" is not appropriate.
>
> Ah, I see. Well, I'd suggesting being explicit: assuming_no_aerosol_or_cloud.
>
> Cheers
>
> Jonathan
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> CF-metadata at cgd.ucar.edu
> http://mailman.cgd.ucar.edu/mailman/listinfo/cf-metadata
-- 
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Dr Alejandro Bodas-Salcedo     Earth Observation Research Scientist
Met Office Hadley Centre
FitzRoy Rd   Exeter  EX1 3PB   United Kingdom
Tel:  +44 (0)1392 886113   Fax:  +44 (0)1392 885681
E-mail: alejandro.bodas at metoffice.gov.uk   http://www.metoffice.gov.uk
See our guide to climate change at
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Received on Tue Mar 17 2009 - 02:47:03 GMT

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