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Single scattering albedo

 

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Single scattering albedo



 
 
Single scattering albedo - the ratio of scattering efficiency to total light extinction (which is also termed "attenuance", a sum of scattering and absorption). Most often it is defined for small-particle scattering of electromagnetic waves
Electromagnetic radiation

Electromagnetic radiation takes the form of wave propagation waves in a vacuum or in matter. EM radiation has an electric field and magnetic field component which oscillate in phase perpendicular to each other and to the direction of energy Wave propagation....
.

For spherical particles one can calculate single scattering albedo from Mie theory
Mie theory

Mie theory, also called Lorenz-Mie theory or Lorenz-Mie-Debye theory, is an analytical solution of Maxwell's equations for the scattering of electromagnetic radiation by spherical particles ....
 and knowledge of bulk properties of material such as refractive index
Refractive index

The refractive index of a medium is a measure for how much the speed of light is reduced inside the medium. For example, typical soda-lime glass has a refractive index of 1.5, which means that in glass, light travels at times the speed of light in a vacuum....
. For non-spherical particles one could use discrete dipole approximation
Discrete dipole approximation

The discrete dipole approximation - is a method for computing scattering of radiation by particles of arbitrary shape.The discrete-dipole approximation is a flexible technique for computing scattering and absorption by targets of arbitrary geometry....
 or other methods of computational electromagnetics
Computational electromagnetics

Computational electromagnetics, computational electrodynamics or electromagnetic modeling is the process of modeling the interaction of electromagnetic fields with physical objects and the environment....
.








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Single scattering albedo - the ratio of scattering efficiency to total light extinction (which is also termed "attenuance", a sum of scattering and absorption). Most often it is defined for small-particle scattering of electromagnetic waves
Electromagnetic radiation

Electromagnetic radiation takes the form of wave propagation waves in a vacuum or in matter. EM radiation has an electric field and magnetic field component which oscillate in phase perpendicular to each other and to the direction of energy Wave propagation....
.

For spherical particles one can calculate single scattering albedo from Mie theory
Mie theory

Mie theory, also called Lorenz-Mie theory or Lorenz-Mie-Debye theory, is an analytical solution of Maxwell's equations for the scattering of electromagnetic radiation by spherical particles ....
 and knowledge of bulk properties of material such as refractive index
Refractive index

The refractive index of a medium is a measure for how much the speed of light is reduced inside the medium. For example, typical soda-lime glass has a refractive index of 1.5, which means that in glass, light travels at times the speed of light in a vacuum....
. For non-spherical particles one could use discrete dipole approximation
Discrete dipole approximation

The discrete dipole approximation - is a method for computing scattering of radiation by particles of arbitrary shape.The discrete-dipole approximation is a flexible technique for computing scattering and absorption by targets of arbitrary geometry....
 or other methods of computational electromagnetics
Computational electromagnetics

Computational electromagnetics, computational electrodynamics or electromagnetic modeling is the process of modeling the interaction of electromagnetic fields with physical objects and the environment....
.

See also

  • Light scattering by particles
    Light scattering by particles

    Light scattering by particles - part of computational electromagnetics dealing with single particle scattering, single scattering albedo, and absorption of electromagnetic radiation....
  • Albedo
    Albedo

    The albedo of an object is the extent to which it diffusely reflects light from the Sun. It is therefore a more specific form of the term reflectivity....