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Atmospheric and Oceanic Optics

2016 year, number 10

Contribution of water vapor continuum absorption to longwave radiative fluxes in the cloudy and cloudless atmosphere

K.M. Firsov1, T.Yu. Chesnokova2, I.I. Klitochenko1
1Volgograd State University, 100, prospect Universitetsky, Volgograd, 400062, Russia
2V.E. Zuev Institute of Atmospheric Optics of Siberian Branch of the Russian Academy of Science, 1, Academician Zuev square, Tomsk, 634021, Russia
Keywords: континуальное поглощение водяным паром, перистые облака, перенос излучения, радиационный форсинг, water vapor continual absorption, cirrus cloud, transfer of radiation, radiative forcing

Abstract

The atmospheric transparency window of 8-12 mm is one of the main spectral intervals forming thermal balance of the atmosphere; at that, the contribution of continual absorption to the radiative balance is the most significant. The results of simulation of upward and downward fluxes for different meteorological situations (cloudy and cloudless) are presented; and role of H2O continuum is estimated with use of different models of continual absorption.