Extinction of radiant energy by large atmospheric crystals with different shapes

Extinction of radiant energy by large atmospheric crystals with different shapes

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Parent link:Journal of Quantitative Spectroscopy and Radiative Transfer
Vol. 178.— 2016.— [P. 350–360]
Hlavní autor: Shefer O. V. Olga Vladimirovna
Korporativní autor: Национальный исследовательский Томский политехнический университет Институт кибернетики Кафедра информатики и проектирования систем
Shrnutí:Title screen
The calculated results of extinction characteristics of visible and infrared radiation for large semi-transparent crystals are obtained by hybrid technique, which is a combination of the geometric optics method and the physical optics method. Energy and polarization characteristics of the radiation extinction in terms of the elements of the extinction matrix for individual large crystals and ensemble of crystals are discussed. Influences of particle shapes, aspect ratios, parameters of size distribution, complex refractive index, orientation of crystals, wavelength, and the polarization state of an incident radiation on the extinction are illustrated. It is shown that the most expressive and stable features of energy and polarization characteristics of the extinction are observed in the midinfrared region, despite the fact that the ice particles significantly absorb the radiant energy of this spectrum. It is demonstrated that the polarized extinction characteristics can reach several tens of percent at IR wavelengths. For the large crystals, the conditions of occurrence of the spectral behavior of the extinction coefficient in the visible, near-IR, and mid-IR wavelength ranges are determined.
Режим доступа: по договору с организацией-держателем ресурса
Jazyk:angličtina
Vydáno: 2016
Témata:
электронный ресурс
труды учёных ТПУ
On-line přístup:http://dx.doi.org/10.1016/j.jqsrt.2015.10.028
Médium: Elektronický zdroj Kapitola
KOHA link:https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=648079

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