-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1
Alejandro,
Not sure it's related, but there was a thread on cloud physical
properties a few year ago:
http://mailman.cgd.ucar.edu/pipermail/cf-metadata/2011/048566.html
Best regards,
Martin
On 2015-02-20 17:59, Bodas-Salcedo, Alejandro wrote:
> Dear All,
>
> I would like to propose new standard names for liquid and ice cloud
> fractions (as far as I can see, they don't exist). I am not sure if
> they follow the spirit of the CF conventions because cloud phase is
> not a well defined concept. I would appreciate your comments on
> this.
>
> Regards,
>
> Alejandro
>
> ** liquid_cloud_area_fraction
>
> "X_area_fraction" means the fraction of horizontal area occupied by
> X. "X_area" means the horizontal area occupied by X within the grid
> cell. Cloud area fraction is also called "cloud amount" and "cloud
> cover". The cloud area fraction is for the whole atmosphere column,
> as seen from the surface or the top of the atmosphere. The cloud
> area fraction in a layer of the atmosphere has the standard name
> cloud_area_fraction_in_atmosphere_layer.
>
> Units: 1
>
> ** ice_cloud_area_fraction
>
> "X_area_fraction" means the fraction of horizontal area occupied by
> X. "X_area" means the horizontal area occupied by X within the grid
> cell. Cloud area fraction is also called "cloud amount" and "cloud
> cover". The cloud area fraction is for the whole atmosphere column,
> as seen from the surface or the top of the atmosphere. The cloud
> area fraction in a layer of the atmosphere has the standard name
> cloud_area_fraction_in_atmosphere_layer.
>
> Units: 1
>
> ** liquid_cloud_area_fraction_in_atmosphere_layer
>
> "Layer" means any layer with upper and lower boundaries that have
> constant values in some vertical coordinate. There must be a
> vertical coordinate variable indicating the extent of the layer(s).
> If the layers are model layers, the vertical coordinate can be
> model_level_number, but it is recommended to specify a physical
> coordinate (in a scalar or auxiliary coordinate variable) as well.
> "X_area_fraction" means the fraction of horizontal area occupied by
> X. "X_area" means the horizontal area occupied by X within the grid
> cell. Cloud area fraction is also called "cloud amount" and "cloud
> cover".
>
> Units: 1
>
> ** ice_cloud_area_fraction_in_atmosphere_layer
>
> "Layer" means any layer with upper and lower boundaries that have
> constant values in some vertical coordinate. There must be a
> vertical coordinate variable indicating the extent of the layer(s).
> If the layers are model layers, the vertical coordinate can be
> model_level_number, but it is recommended to specify a physical
> coordinate (in a scalar or auxiliary coordinate variable) as well.
> "X_area_fraction" means the fraction of horizontal area occupied by
> X. "X_area" means the horizontal area occupied by X within the grid
> cell. Cloud area fraction is also called "cloud amount" and "cloud
> cover".
>
> Units: 1
>
>
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v2.0.22 (GNU/Linux)
iQEcBAEBAgAGBQJU6PeAAAoJEBdvyODiyJI4VyMH+wZTMwiq5lmoRWtyZbyRhl0n
xB68uWL2oEE/06SS037cc3NKZfXGzx6blt/6ytsr7gsStBLdaKnT0sxnIxfMauF3
KhiqggNWFbqoaZHw0mjmewFxA/eNspgKs4+lQbIh0B5dvTcwRmDZHwzCu8v/xKxM
q/7m/TT0N4y0APEWYCc0SNdM0MClc9PgEIhdunZfj1BlhjeRXAZX26wKRasgUjot
QCFY25hDo2fY8acrFM3yB5Ao4qSh/nCftRi/qI5wy59/tupdVugLX+hK1teMcUAe
H5Zro/sU1toC1+wEm4gYyorMaLymgEeNIva5hnt42TMne+vlmswswU2BtYnoZf4=
=EqCj
-----END PGP SIGNATURE-----
-------------- next part --------------
A non-text attachment was scrubbed...
Name: martin_raspaud.vcf
Type: text/x-vcard
Size: 290 bytes
Desc: not available
URL: <
http://mailman.cgd.ucar.edu/pipermail/cf-metadata/attachments/20150221/25bc921c/attachment.vcf>
Received on Sat Feb 21 2015 - 14:24:16 GMT
