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There are a total of 18 record(s) matching your query.
Sorted by: Date Added To NTRS in Descending order
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The Vega balloon experiments
Author(s): Sagdeev, R. Z.; Linkin, V. M.; Kremnev, R. S.; Blamont, J. E.; Preston, R. A., et al.
Abstract: The goals of the Vega-1 and -2 experiments were to trace the large- and small-scale motions, measure the turbulent heat and momentum flow in the cloud layer, and determine the physical parameters of the Venus atmosphere. The ...
NASA Center: Jet Propulsion Laboratory
Publication Year: 1986
Added to NTRS: 2004-11-03
Accession Number: 87A19552; Document ID: 19870032278
Thermal structure in the Venus middle cloud layer
Author(s): Linkin, V. M.; Lipatov, A. N.; Shurupov, A. A.; Ignatova, S. P.; Frank, G. A.; Seiff, A.; Ragent, B.; Young, R. E.; Elson, L. S.; Preston, R. A., et al.
Abstract: Thermal structure measurements obtained by the two Vega balloons show the Venus atmosphere in the middle cloud layer to be near-adiabatic, on the whole; but discrete air masses are present that differ slightly from one ...
NASA Center: Ames Research Center, Jet Propulsion Laboratory
Publication Year: 1986
Added to NTRS: 2004-11-03
Accession Number: 87A19557; Document ID: 19870032283
The Vega balloon experiment - Initial results from the global radio tracking
Author(s): Preston, R. A.; Hildebrand, C. E.; Purcell, G. H., Jr.; Finley, S. G.; Stelzried, C. T.; Ellis, J.; Sagdeev, R. Z.; Matveenko, L. I.; Linkin, V. M.; Kerzhanovich, V. V., et al.
Abstract: A unique global array of 20 radio telescopes provided 24-h telemetry acquisition of meteorological data from the Vega balloons and differential VLBI measurements of their trajectories. Initial Doppler-tracking analysis ...
NASA Center: Jet Propulsion Laboratory
Publication Year: 1986
Added to NTRS: 2004-11-03
Accession Number: 87A19555; Document ID: 19870032281
The Vega balloons - A tool for studying atmosphere dynamics on Venus
Author(s): Kremnev, R. S.; Selivanov, A. S.; Linkin, V. M.; Lipatov, A. N.; Tarnoruder, I. IA.; Puchkov, V. I.; Kustodiev, V. D.; Shurupov, A. A.; Ragent, B.; Preston, R. A., et al.
Abstract: The Vega balloon experiment, designed to measure the dynamics of the Venus atmosphere, comprised the balloons themselves, their gondolas with on-board sensors and radio transmitters, and the radio telescope network on the ...
NASA Center: Ames Research Center, Jet Propulsion Laboratory
Publication Year: 1986
Added to NTRS: 2004-11-03
Accession Number: 87A19554; Document ID: 19870032280
Mean zonal winds on Venus from Doppler tracking of the Vega balloons
Author(s): Andreev, R. A.; Altunin, V. I.; Kerzhanovich, V. V.; Kogan, L. R.; Kostenko, V. I.; Kustodiev, V. D.; Linkin, V. M.; Matveenko, L. I.; Hildebrand, C. E.; Preston, R. A., et al.
Abstract: Doppler measurements of the two Vega balloons yield the following provisional estimates for the mean zonal wind velocity at the 53-54 km level in the Venus atmosphere: 69 or - 1 m/sec for Vega 1 and 66 or - 1 m/sec for ...
NASA Center: Jet Propulsion Laboratory
Publication Year: 1986
Added to NTRS: 2004-11-03
Accession Number: 87A19558; Document ID: 19870032284
VEGA balloon dynamics and vertical winds in the Venus middle cloud region
Author(s): Linkin, V. M.; Young, R. E.; Seiff, A.; Blamont, J. E.; Elson, L. S., et al.
Abstract: The VEGA balloons provided a long-term record of vertical wind fluctuations in a planetary atmosphere other than earth's. The vertical winds were calculated from the observed displacement of the balloon relative to its ...
NASA Center: Ames Research Center, Jet Propulsion Laboratory
Publication Year: 1986
Added to NTRS: 2004-11-03
Accession Number: 86A30820; Document ID: 19860046082
VEGA balloon system and instrumentation
Author(s): Kremnev, R. S.; Linkin, V. M.; Lipatov, A. N.; Ragent, B.; Preston, R. A., et al.
Abstract: The VEGA Venus balloon radio transmissions received on earth were used to measure the motion of the balloons and to obtain the data recorded by onboard sensors measuring atmospheric characteristics. Thus the balloons ...
NASA Center: Ames Research Center, Jet Propulsion Laboratory
Publication Year: 1986
Added to NTRS: 2004-11-03
Accession Number: 86A30817; Document ID: 19860046079
Vertical thermal structure of the Venus atmosphere from temperature and pressure measurements
Author(s): Linkin, V. M.; Blamon, Z.; Lipatov, A. P.; Devyatkin, S. I.; Dyachkov, A. V.; Ignatova, S. I.; Kerzhanovich, V. V.; Malyk, K.; Stadny, V. I.; Sanotskiy, Y. V., et al.
Abstract: Accurate temperature and pressure measurements were made on the Vega-2 lander during its entire descent. The temperature and pressure at the surface were 733 K and 89.3 bar, respectively. A strong temperature inversion was ...
NASA Center: NASA (non Center Specific)
Publication Year: 1986
Added to NTRS: 2004-11-03
Accession Number: 86N29752; Document ID: 19860020280; Report Number: NAS 1.15:88420, NASA-TM-88420
Overview of VEGA Venus balloon in situ meteorological measurements
Author(s): Sagdeev, R. Z.; Linkin, V. M.; Elson, L. S.; Preston, R. A.; Ragent, B., et al.
Abstract: The VEGA balloons made in situ measurements of pressure, temperature, vertical wind velocity, ambient light, frequency of lightning, and cloud particle backscatter. Both balloons encountered highly variable atmospheric ...
NASA Center: Ames Research Center, Jet Propulsion Laboratory
Publication Year: 1986
Added to NTRS: 2004-11-03
Accession Number: 86A30818; Document ID: 19860046080
Thermal structure of the Venus atmosphere in the middle cloud layer
Author(s): Linkin, V. M.; Seiff, A.; Ragent, B.; Young, R. E.; Elson, L. S.; Preston, A., et al.
Abstract: Thermal structure measurements obtained by the two VEGA balloons show the Venus middle cloud layer to be generally adiabatic. Temperatures measured by the two balloons at locations roughly symmetric about the equator ...
NASA Center: Ames Research Center, Jet Propulsion Laboratory
Publication Year: 1986
Added to NTRS: 2004-11-03
Accession Number: 86A30821; Document ID: 19860046083
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