Dear Alejandro, after reading your mail, I was surprised to realise that aerosol_single_scattering_albedo in fact hadn't been defined yet.
However, the definition you propose seems to me rather unusual. You define the single scattering albedo with respect to a single particle as ratio of cross-sections, i.e. as truly microscale property. From the multitude of particles contained in an aerosol, how do you determine which particle you refer to? >From my experience, it's more usual to define the single scattering albedo as ratio of scattering and extinction coefficient of a particle population, i.e. an effective property for the ensemble of particles contained in the aerosol. How about this: Definition: Fraction of radiation in an incident light beam interacting with the particles of an aerosol reference volume and scattered by these particles as a function of wavelength. It is the ratio of the scattering and the extinction coefficients of the aerosol particles in the reference volume. A coordinate of radiation_wavelength or radiation_frequency should be included to specify either the wavelength or frequency. Having said that, should we also consider to include the humidity state of the aerosol? That would require relative_humidity as additional coordinate variable. Best regards, Markus Am 19.01.2016 um 10:47 schrieb Bodas-Salcedo, Alejandro: > Dear All, > > I'd like to propose a new standard name, which as far as I can see doesn't > currently exist in the CF table: > > Name: aerosol_single_scattering_albedo > Units: 1 > Description: Fraction of radiation scattered out of a pencil of radiation > after one encounter with an aerosol particle for a given wavelength. It is > the ratio between the scattering cross-section and the extinction > cross-section. A coordinate of radiation_wavelength or radiation_frequency > should be included to specify either the wavelength or frequency. > > > Thanks, > > Alejandro > -- Dr. Markus Fiebig Senior Scientist Dept. Atmospheric and Climate Research (ATMOS) Norwegian Institute for Air Research (NILU) P.O. Box 100 N-2027 Kjeller Norway Tel.: +47 6389-8235 Fax : +47 6389-8050 e-mail: [email protected] skype: markus.fiebig P Please consider the environment before printing this email and attachments
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