By Alexander A. Kokhanovsky

In Aerosol Optics, Alexander Kokhanovsky presents a entire overview of obtainable options for the distant sensing of aerosols. even supposing more often than not satellite tv for pc distant sensing is taken into account, ground-based ideas also are mentioned. The paintings is based at the reliable foundation of radiative move conception, coupled with Maxwell conception for the calculation of the scattering houses of small debris. particularly, the writer describes recommendations for the decision of the column focus of aerosol debris and their optical sizing utilizing spaceborne optical instrumentation. the vast majority of the ideas defined during this ebook use a so-called "library method". this system depends the precalculated top-of-atmosphere reflectances (TOAR) for vaious atmospheric aerosol kinds. The comparability of measured and calculated TOARS permits one to signify the optically-equivalent aerosol state.

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Extra info for Aerosol Optics: Light Absorption and Scattering by Particles in the Atmosphere

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14(c) for oceanic and coarse aerosol modes are shifted with respect to each other due to the different values of the real part of the refractive index of soil and oceanic aerosols. We show the degree of polarization given by Àf12 and also f33 , f34 for continental and maritime aerosols calculated using the data shown in Figs. 2 and Figs. 15(a), (b) and (c). It follows from comparisons of Figs. 15 and Figs. 14 that the scattering matrix of continental aerosol behaves similar by to the fine mode aerosol scattering matrix and that that for the maritime aerosol is very Fig.

They damp down at x ¼ 20 because in this case the attenuation of the electromagnetic waves on the diameter of a particle cannot be neglected for the range of v shown in Fig. 5. Generally, the absorption increases with the refractive index. 1). This leads to the decrease of the portion of energy, which can penetrate into particles and be absorbed 30 2 Optical properties of atmospheric aerosol Fig. 5. 008i. there. Hence, the absorption efficiency factor decreases with n for large, strongly absorbing particles.

In particular, current satellite aerosol remote sensing from space is based exclusively on 1-D RTE. In a way, 1-D theory serves a role similar to that of Mie theory in single light scattering by particles. It enables fast calculations and captures the main physical dependencies. The analytical theory and numerical procedures of 1-D radiative transfer are highly developed and mature enough to use in the solution of most practical problems arising in field of optical engineering and also in the related areas of applied optics.

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