Computer Science – Sound
Scientific paper
Nov 1982
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1982icar...52..320k&link_type=abstract
(International Conference on the Venus Environment, Palo Alto, CA, Nov. 1-6, 1981.) Icarus, vol. 52, Nov. 1982, p. 320-334.
Computer Science
Sound
20
Atmospheric Sounding, Atmospheric Temperature, Radio Occultation, Temperature Profiles, Venus Atmosphere, Data Reduction, Pioneer Venus 1 Spacecraft, Polar Regions, Solar Position, Stratosphere, Tropopause
Scientific paper
The processing and analysis results from 87 radio occultation experiments performed with the Pioneer Venus Orbiter are detailed. Atmospheric structure data were obtained with S-band (2293 MHz) and X-band (8407 MHz) signals transmitted through the 40 and 85 km levels of the Venus atmosphere. Latitudes of -68 to 88 deg at solar zenith angles of 8-166 deg were explored. The conversion of the data into acceptable form for the barometric equation to use the perfect gas law to obtain the temperature profiles is described. The temperature structures were more dependent on latitude than solar illumination conditions, with the greatest changes occurring in the circumpolar region. The polar tropopause altitude was about 4.8 km above its value at lower altitudes, with a temperature drop of 60 K and a pressure drop of 240 mb.
Kliore Arvydas J.
Patel Indu R.
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