Abstract Three aspects of the Venusian middle atmosphere are considered. First, we discuss the current state of understanding of the polar collar/ polar dipole phenomenon on Venus discovered by Pioneer Venus and subsequently investigated by Venera 15. Next, the measurements of water vapour above the clouds by these two missions are compared and contrasted. Finally, the new data which will be obtained in the future by, for example, the Near Infrared Mapping Spectrometer (NIMS) on the Galileo mission during its Venus fly-by in 1990, are discussed. New models of the Venusian atmosphere derived using Earth-based observations by Allen et al. /1/ suggest that the NIMS may yield the first spatially-resolved maps of the deep cloud structure on Venus. To further elucidate the mysterious dipole, an infrared imaging experiment is proposed.
High latitude phenomena, deep cloud structure, and water vapour on Venus
Advances in Space Research ; 10 , 5 ; 47-56
1989-01-01
10 pages
Article (Journal)
Electronic Resource
English
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