Aerosol

Polar Aerosol Review Article Available

A review paper by Tomasi et al.

Tags: 

Aerosol - Trace metals

Definitions from the Global Atmosphere Watch are not currently avalible.

Aerosol - Inorganic, Trace elements

Definitions from the Global Atmosphere Watch are not currently avalible.

Aerosol - Physical, Primary

Definitions from the Global Atmosphere Watch are not currently avalible.

Aerosol - Physical, Optical

Definitions from the Global Atmosphere Watch are not currently avalible.

Aerosol - Anions, Inorganic

The Mass concentration  of various aerosols.

(Note that for these definitions the GAW vocabulary redirects to the CF standard name table. For the full reference, please visit: http://cf-pcmdi.llnl.gov/documents/cf-standard-names/standard-name-table/22/cf-standard-name-table.html)

Specific Measurements:

Nitrate (NO3-), total aerosol (mass_concentration_of_nitrate_dry_aerosol_in_air): Mass concentration means mass per unit volume and is used in the construction mass_concentration_of_X_in_Y, where X is a material constituent of Y. A chemical species denoted by X may be described by a single term such as 'nitrogen' or a phrase such as 'nox_expressed_as_nitrogen'. "Aerosol" means the suspended liquid or solid particles in air (except cloud droplets). Aerosol takes up ambient water (a process known as hygroscopic growth) depending on the relative humidity and the composition of the aerosol. "Dry aerosol" means aerosol without water. The chemical formula for the nitrate anion is NO3-.

Sulphate (SO4=), total (mass_concentration_of_sulfate_ambient_aerosol_in_air): Mass concentration means mass per unit volume and is used in the construction mass_concentration_of_X_in_Y, where X is a material constituent of Y. A chemical species denoted by X may be described by a single term such as 'nitrogen' or a phrase such as 'nox_expressed_as_nitrogen'. "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.

Sulphate (SO4=), corrected (mass_concentration_of_sulfate_dry_aerosol_in_air): Mass concentration means mass per unit volume and is used in the construction mass_concentration_of_X_in_Y, where X is a material constituent of Y. A chemical species denoted by X may be described by a single term such as 'nitrogen' or a phrase such as 'nox_expressed_as_nitrogen'. "Aerosol" means the suspended liquid or solid particles in air (except cloud droplets). Aerosol takes up ambient water (a process known as hygroscopic growth) depending on the relative humidity and the composition of the aerosol. "Dry aerosol" means aerosol without water. The chemical formula for the sulfate anion is SO4(2-).

Radiometric terms for the IASOA data vocabulary are taken from the Global Atmosphere Watch Station Information System (GAWSIS). . For the full reference, please visit: http://gaw.empa.ch/gawsis/display.asp.

Aerosol - Optical

The effects of aerosols on radient energy and light scattering.

Specific Measurements:



Actinic flux: The quantity of light in the atmosphere available to molecules at a particular point and which, on absorption, initiates photochemical processes in the atmosphere (spectral spheradiance) actinic flux units: (quanta or photons) / ( m2 nm s )

Aerosol absorption: The process in which radiation energy is retained by aerosols.

Aerosol backscattered radiation: The scattering of radiant energy into the hemisphere of space bounded by a plane normal to the direction of the incident radiation and lying on the same side as the incident ray.

Aerosol extinction: The removal of radiant energy from an incident beam by the process of aerosol absorption and/or scattering.

Aerosol optical depth: A measure of how much light aerosols prevent from passing through a column of atmosphere.

Aerosol optical properties: The optical properties of aerosols, including asymmetry factor, phase-function, single-scattering albedo, refractive index, and backscatter fraction.

Aerosol scattering: The scattering of radiative energy by processes at the aerosol and molecular level.

Backscatter depolarization ratio: The ratio of cross polarized to co-polarized elastic backscatter.

Backscattered radiation: The scattering of radiant energy into the hemisphere of space bounded by a plane normal to the direction of the incident radiation and lying on the same side as the incident ray.

 

Radiometric terms for the IASOA data vocabulary are taken from the U.S. Department of Energy’s Atmospheric Radiation Measurement (ARM) program’s measurement vocabulary. For the full reference, please visit: http://www.arm.gov/measurements.