By Alexander A. Kokhanovsky

This new textual content deals skilled scholars a entire evaluation of accessible innovations for the distant sensing of aerosols. those small debris impression either atmospheric visibility and the thermodynamics of the ambience. also they are of serious value in any attention of weather switch difficulties. Aerosols can also be accountable for the lack of harvests, human illnesses and ecological mess ups. therefore, this distinctive research of aerosol houses on a world scale couldn't be extra timely.

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Additional info for Aerosol Optics: Light Absorption and Scattering by Particles in the Atmosphere (Springer Praxis Books / Environmental Sciences)

Example text

However, apart from the nonsphericity and also inhomogeneity of particles yet another problem arises. One needs to account for multiple light scattering to characterize processes of light transmission, reflection and diffusion in aerosol layers. , 2002). It is treated usually in the simplified framework of radiative transfer theory. It means that instead of manipulating with electromag~, one considers the transformation of the Stokes vector of the incident light by netic fields E an aerosol medium.

4(a) for the same range of parameters n and x as in Fig. 1. 008. Single-scattering albedo calculated for the same conditions as in Fig. 4(a) is presented in Fig. 4(b). It follows that single-scattering albedo generally increases with the size of particles. Often approximate relations for the local optical parameters of an aerosol medium are used. They make it possible to avoid tedious numerical calculations and to make quick estimates of corresponding optical parameters. Introducing the volumetric concentration of particles, c ¼ N V ; one derives for absorbing particles with radii much smaller than the wavelength: kabs ðkÞ ¼ cDðnÞaðkÞ: This expression differs from that for homogeneous media without scattering due to the presence of the coefficient D: This coefficient (see above) is equal to one at n ¼ 1, as it should be.

9 except for the degree of linear polarization of singly scattered light assuming unpolarized light illumination conditions. 0 0 20 40 60 80 100 120 140 160 180 scattering angle, degrees Fig. 14(b). The same as in Fig. 9 except for f33 . , 1976). 2 is given in Fig. 14(a). It follows that the value of P is larger for fine mode aerosols and also for soot, which shows a polarization curve similar to that for molecular scattering, which is given by sin2 h=ð1 þ cos2 hÞ. The polarization curves given in Fig.

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