[CF-metadata] Proposal for new standard name: volume_beam_attenuation_coefficient_of_radiative_flux_in_sea_water_corrected_for_pure_water_attenuance
Lowry, Roy K.
rkl at bodc.ac.uk
Mon Apr 24 11:41:41 MDT 2017
Other than the nitpick than 'remove the influence of absorption/scattering by the water itself.' is marginally better English than 'remove the influence of absorption/scattering from the water itself.' this looks perfectly OK to me.
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From: CF-metadata <cf-metadata-bounces at cgd.ucar.edu> on behalf of Andrew Barna <abarna at ucsd.edu>
Sent: 24 April 2017 18:00
To: cf-metadata at cgd.ucar.edu
Subject: [CF-metadata] Proposal for new standard name: volume_beam_attenuation_coefficient_of_radiative_flux_in_sea_water_corrected_for_pure_water_attenuance
Here is the proposal for the standard name for volume_beam_attenuation_coefficient_of_radiative_flux_in_sea_water which has been corrected fro attenuation from the water itself. The definition is almost identical except for the sentence about what "corrected for pure water attenuance" means.
standard name: volume_beam_attenuation_coefficient_of_radiative_flux_in_sea_water_corrected_for_pure_water_attenuance
canonical units: m-1
description: Radiative flux is the sum of shortwave and longwave radiative fluxes. In accordance with common usage in geophysical disciplines, "flux" implies per unit area, called "flux density" in physics. The volume scattering/absorption/attenuation coefficient is the fractional change of radiative flux per unit path length due to the stated process. Coefficients with canonical units of m2 s-1 i.e. multiplied by density have standard names with specific_ instead of volume_. The scattering/absorption/attenuation coefficient is assumed to be an integral over all wavelengths, unless a coordinate of radiation_wavelength is included to specify the wavelength. Attenuation is the sum of absorption and scattering. Attenuation is sometimes called "extinction". Beam attenuation refers to the decrease of radiative flux along the direction of the incident path. It is distinguished from attenuation of the downwelling component of radiative flux from any incident direction, also called "diffuse"
attenuation. Corrected for pure water attendance means the attenuation coefficient has been adjusted/calibrated to remove the influence of absorption/scattering from the water itself.
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