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    Infrared radiation of Venusian clouds (1978)
    In:  CASI
    Details
    Publication Date: 2019-08-28
    Description: The thermal infrared emission of Venus measured by Venera-9 and Venera-10 is analyzed. The emission of the night side corresponds to a brightness temperature of 244 K. The brightest temperature of the day side is 233-234 K. The extent of the upper layer of clouds, in which the thermal emission is formed, is 4-6 km. The altitude of the emitting layer above the surface of the planet (64-67 km) is determined from the brightness temperature and the existing models of the atmosphere of Venus. In some cases, correlation is noted between the inhomogeneity and the details of the ultraviolet image. The day side temperatures strangely coincide with the freezing point of sulfuric acid at a concentration of 66-77%.
    Keywords: LUNAR AND PLANETARY EXPLORATION
    Type: NASA-TM-75539 , PR-289
    Format: application/pdf
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