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[CF-metadata] New standard name: volume_extinction_coefficient_in_air_due_to_cloud

From: alison.pamment at stfc.ac.uk <alison.pamment>
Date: Thu, 21 Apr 2016 16:34:01 +0000

Dear Alejandro,

I just stumbled across an old name that was discussed briefly and agreed in 2014 (http://mailman.cgd.ucar.edu/pipermail/cf-metadata/2014/057186.html) , but it seems that I have so far neglected to publish it:

volume_extinction_coefficient_in_air_due_to_cloud_particles (canonical units: m-1)
' The volume extinction coefficient is the fractional change of radiative flux per unit path length. Extinction is the sum of absorption and scattering, sometimes called "attenuation". "Extinction" is the term most commonly used at optical wavelengths whereas "attenuation" is more often used at radio and radar wavelengths. The specification of a physical process by the phrase "due_to_" process means that the quantity named is a single term in a sum of terms which together compose the general quantity named by omitting the phrase. "Cloud particles" means suspended liquid or ice water droplets. A coordinate of radiation_wavelength or radiation_frequency should be included to specify either the wavelength or frequency.'

This name will be included in the update on 17th May.

Best wishes,
Alison

------
Alison Pamment Tel: +44 1235 778065
Centre for Environmental Data Analysis Email: alison.pamment at stfc.ac.uk
STFC Rutherford Appleton Laboratory
R25, 2.22
Harwell Campus, Didcot, OX11 0QX, U.K.
Received on Thu Apr 21 2016 - 10:34:01 BST

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