scholarly journals Structure of the Lower Atmosphere of Venus.

1962 ◽  
Vol 67 ◽  
pp. 281 ◽  
Author(s):  
Carl Sagan
Keyword(s):  
Lower Atmosphere ◽  
Atmosphere Of Venus

Sulfuric acid vapor and sulfur dioxide in the atmosphere of Venus as observed by the Venus Express Radio Science Experiment VeRa

2021 ◽  
Author(s):  
Janusz Oschlisniok ◽  
Bernd Häusler ◽  
Martin Pätzold ◽  
Silvia Tellmann ◽  
Michael Bird
Keyword(s):  
Sulfuric Acid ◽  
Transport Model ◽  
Lower Atmosphere ◽  
Local Times ◽  
Acid Vapor ◽  
Radio Science ◽  
X Band ◽  
Wide Range ◽  
Venus Express ◽  
Atmosphere Of Venus

<p>The main cloud deck within Venus' atmosphere, which covers the entire planet between approx. 50 and 70 km altitude, is believed to consist mostly of liquid sulfuric acid. The temperature below the main clouds is high enough to evaporate the H2SO4 droplets into gaseous sulfuric acid forming a haze layer which extends to altitudes as deep as 35 km. Gaseous sulfuric acid in Venus’ lower atmosphere is responsible for a strong absorption of radio waves as seen in Mariner, Pioneer Venus, Magellan and Venera radio science observations. Radio wave absorption measurements can be used to derive the amount of H2SO4 in Venus’ atmosphere. The radio science experiment VeRa onboard Venus Express probed the atmosphere of Venus between 2006 and 2014 with radio signals at 13 cm (S-band) and 3.6 cm (X-band) wavelengths. The orbit of the Venus Express spacecraft allowed to sound the atmosphere over a wide range of latitudes and local times providing a global picture of the sulfuric acid vapor distribution. We present the global H2SO4(g) distribution derived from the X-band radio signal attenuation for the time of the entire Venus Express mission. The observation is compared with results obtained from a 2-D transport model. The VeRa observations were additionally used to estimate the abundance of SO2 near the cloud bottom. The global distribution of SO2 at these altitudes is presented and compared with results obtained from other experiments. Eight years of VEX observation allow to study the long-term evolution of H2SO4 and SO2. The latter is presented for the northern polar region.</p>

Dust in the Lower Atmosphere of Venus

Science ◽  
1969 ◽  
Vol 163 (3864) ◽  
pp. 275-276 ◽  
Author(s):  
A. D. Anderson
Keyword(s):  
Lower Atmosphere ◽  
Atmosphere Of Venus

scholarly journals Evidence for carbonyl sulfide (OCS) conversion to CO in the lower atmosphere of Venus

2009 ◽  
Vol 114 ◽  
Author(s):  
Yuk L. Yung ◽  
M. C. Liang ◽  
X. Jiang ◽  
R. L. Shia ◽  
C. Lee ◽  
...  
Keyword(s):  
Carbonyl Sulfide ◽  
Lower Atmosphere ◽  
Atmosphere Of Venus

Sulfur trioxide in the lower atmosphere of Venus?

Icarus ◽  
1983 ◽  
Vol 53 (1) ◽  
pp. 1-9 ◽  
Author(s):  
R.A. Craig ◽  
R.T. Reynolds ◽  
B. Ragent ◽  
G.C. Carle ◽  
F. Woeller ◽  
...  
Keyword(s):  
Sulfur Trioxide ◽  
Lower Atmosphere ◽  
Atmosphere Of Venus

Structure of the lower atmosphere of Venus

Icarus ◽  
1962 ◽  
Vol 1 (1-6) ◽  
pp. 151-169 ◽  
Author(s):  
Carl Sagan
Keyword(s):  
Lower Atmosphere ◽  
Atmosphere Of Venus

Thermodynamic Constraints on the Lower Atmosphere of Venus

2017 ◽  
Vol 1 (7) ◽  
pp. 422-430 ◽  
Author(s):  
Nathan S. Jacobson ◽  
Michael Kulis ◽  
Brandon Radoman-Shaw ◽  
Ralph Harvey ◽  
Dwight L. Myers ◽  
...  
Keyword(s):  
Lower Atmosphere ◽  
Atmosphere Of Venus
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