Laboratory measurements of the microwave and millimeter-wave opacity of gaseous sulfur dioxide (SO2) under simulated conditions for the Venus atmosphere
作者： Antoine K. Fahd , Paul G. Steffes
DOI: 10.1016/0019-1035(92)90128-T
关键词: Optics 、 Microwave 、 Molar absorptivity 、 Opacity 、 Atmosphere of Venus 、 Atmospheric models 、 Radiative transfer 、 Atomic physics 、 Materials science 、 Atmospheric radiative transfer codes 、 Venus
摘要: Gaseous sulfur dioxide (SO2) has long been recognized as one of the primary absorbers in Venus atmosphere at microwave frequencies (3 < f 30GHz). However, effects gaseous SO2 on millimeter-wave emission are not fully understood. This is mainly due to lack measurements opacity under Venus-like conditions millimeter wavelengths (λ 1cm). As a result, we have made laboratory CO2 2.24 GHz (13.3 cm), 21.7 (1.32 and 94.1 (0.32 cm). The results our show close agreement with absorptivity predicted from Van Vleck-Weisskopf formalism two shortest but longest wavelength. In addition, frequency dependence that slower than f2 proposed by Janssen Poynter (Icarus 46, 51–57, 1981) Steffes Eshleman 48, 180–187, 1981). Our incorporated into radiative transfer model infer new abundance profile for middle Venus. Finally, developed used determine SO2/CO2 mixture millimeter-wavelength spectrum
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