Estimates of wind velocity and turbulence from relayed Doppler measurements of the velocity of the descent vehicles of the Venera 9 and Venera 10 automatic space probes

Details Estimates of wind velocity and turbulence from relayed Doppler measurements of the velocity of the descent vehicles of the Venera 9 and Venera 10 automatic space probes Estimates of wind velocity and turbulence from relayed Doppler measurements of the velocity of the descent vehicles of the Venera 9 and Venera 10 automatic space probes

Sep 1976

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1976kosis..14..714a&link_type=abstract

Kosmicheskie Issledovaniia, vol. 14, Sept.-Oct. 1976, p. 714-721. In Russian.

Computer Science

4

Atmospheric Turbulence, Descent Trajectories, Doppler Effect, Venera Satellites, Venus Atmosphere, Wind Velocity Measurement, Satellite-Borne Instruments, Vertical Distribution, Wind Profiles

Scientific paper

As the Venera 9 and 10 descent vehicles traveled from their orbiters to the Venusian surface, they continuously transmitted a signal to the orbiters which was then amplified and used to modulated the orbiter-earth communication signal. The Doppler measurements realized in this manner contained a component related to drift of the descent vehicles under the action of the wind. The paper describes the processing of these measurements and presents some preliminary results. The two wind velocity profiles were similar, revealing a zonal component at all altitudes in the direction of the diurnal rotation of the planet. The wind velocity was small in the lower troposphere, increasing to 50-60 m/sec at about 40 km.

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