Vertical structure of the Venus cloud layer over the VEGA 1 and 2 landing sites

Details Vertical structure of the Venus cloud layer over the VEGA 1 and 2 landing sites Vertical structure of the Venus cloud layer over the VEGA 1 and 2 landing sites

Sep 1987

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987kosis..25..707g&link_type=abstract

Kosmicheskie Issledovaniia (ISSN 0023-4206), vol. 25, Sept.-Oct. 1987, p. 707-714. In Russian.

Physics

2

Cloud Cover, Vega Project, Venus Atmosphere, Vertical Distribution, Aerosols, Particle Density (Concentration), Refractivity, Spacecraft Instruments

Scientific paper

Measurements made with the ISAV-A aerosol spectrometers on the Vega 1 and 2 landers are described. The aerosol size distribution is represented by two modes: mode I is described by the Junge distribution from 0.5 to 5 microns, while mode II consists of 2-5-micron particles. Mode II particles are spherical and their refractive index is 1.4 + or - 0.05. Mode II particle concentrations vary sharply at heights from 45 to 50 km, while mode I concentrations vary smoothly at heights from 35 to 55 km, without forming pronounced cloud layers. Submicron aerosol is present at heights of 30-60 km, having a mass density of 0.1-2 mg/cu m for a refractive index of 2.

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