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ConceptDEPRECATED

Atmosphere optical thickness due to ambient aerosol

URI http://vocab.nerc.ac.uk/standard_name/atmosphere_optical_thickness_due_to_ambient_aerosol/
Within Vocab Climate and Forecast Standard Names
Definition The optical thickness is the integral along the path of radiation of a volume scattering/absorption/attenuation coefficient. The radiative flux is reduced by a factor exp(-optical_thickness) on traversing the path. A coordinate variable of radiation_wavelength or radiation_frequency can be specified to indicate that the optical thickness applies at specific wavelengths or frequencies. The atmosphere optical thickness applies to radiation passing through the entire atmosphere. "Aerosol" means the suspended liquid or solid particles in air (except cloud droplets). "Ambient aerosol" is aerosol that has taken up ambient water through hygroscopic growth. The extent of hygroscopic growth depends on the relative humidity and the composition of the aerosol. 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.
Date None
Note deprecated
isReplacedBy atmosphere_optical_thickness_due_to_ambient_aerosol_particles
modified 2015-01-07 15:23:08.0
Broad Match
P04 Global Change Master Directory Science Keywords V5 - (2) [+]
P04:G102 EARTH SCIENCE > Atmosphere > Aerosols > Aerosol Optical Depth/Thickness
P04:G208 EARTH SCIENCE > Atmosphere > Atmospheric Radiation > Optical Depth/Thickness
P64 Global Change Master Directory Science Keywords V6 - (2) [+]
P64:G102 EARTH SCIENCE > Atmosphere > Aerosols > Aerosol Optical Depth/Thickness
P64:G208 EARTH SCIENCE > Atmosphere > Atmospheric Radiation > Optical Depth/Thickness
Exact Match http://mmisw.org/ont/cf/parameter/atmosphere_optical_thickness_due_to_ambient_aerosol
http://vocab.nerc.ac.uk/standard_name/atmosphere_optical_thickness_due_to_ambient_aerosol/
P07 Climate and Forecast Standard Names - (2) [+]
P07:CFSN0763 atmosphere_optical_thickness_due_to_aerosol
P07:CFV13A2 atmosphere_optical_thickness_due_to_ambient_aerosol
Related P06:UUUU Dimensionless

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