Planet Venus, Earth's so called evil twin, is now famous as the origin of greenhouse gases theory and global warming theory. A recent missions data has been interpreted as certain layers in its polar atmosphere having surprisingly colder regions than expected.
What these results reveal is that parts of Venus are much, much colder than expected. The average temperature on Venus makes it the hottest world in the Solar System, with its thick atmosphere trapping heat and giving rise to scorching temperatures of 460°C (860°F) on the surface.
But measurements taken by Venus Express at an altitude of 130 to 140 kilometers (81 to 87 miles) above the surface have revealed the atmosphere near the poles has temperatures far below that on Earth. In fact, the polar atmosphere on Venus drops to -157°C (-251°F), which is 70 degrees colder than expected. It is also 22 to 40 percent less dense than thought.
Death Plunge Of Venus Spacecraft Reveals Surprisingly Cold Temperatures On The Hottest Planet | I Love Science
Just because Venus is meant to be hot does not mean its whole atmosphere has to be but the massive difference in expected cool temperatures is interesting.
Does Venus have atmospheric layers like Earth?
If it does have more defined layers in its atmosphere than predicted what would this mean? How are planets atmospheric layers formed and maintained?
Are these surprising changes in density and lower temperatures due to Venus atmospheric gravity waves?
Waves are ubiquitous phenomena found in oceans and atmospheres alike. From the earliest formal studies of waves in the Earth’s atmosphere to more recent studies on other planets, waves have been shown to play a key role in shaping atmospheric bulk structure, dynamics and variability ...
As the spacecraft flew through Venus’s atmosphere, deceleration by atmospheric drag was sufficient to obtain from accelerometer readings a total of 18 vertical density profiles. We infer an average temperature of T = 114 ± 23 K and find horizontal wave-like density perturbations and mean temperatures being modulated at a quasi-5-day period.
In situ observations of waves in Venus’s polar lower thermosphere with Venus Express aerobraking
If Velikovskian ideas are correct and Venus was recently born as a planet out of Saturn, or Velikovsky inspired plasma comparative mythology that Venus is a newly created or added to our solar system, what would layers mean?
The polar atmosphere is also not as dense as expected; at 130 and 140 km in altitude, it is 22% and 40% less dense than predicted, respectively. When extrapolated upward in the atmosphere, these differences are consistent with those measured previously by VExADE at 180 km, where densities were found to be lower by almost a factor of two.
"This is in-line with our temperature findings, and shows that the existing model paints an overly simplistic picture of Venus' upper atmosphere," added Müller-Wodarg. "These lower densities could be at least partly due to Venus' polar vortices, which are strong wind systems sitting near the planet's poles. Atmospheric winds may be making the density structure both more complicated and more interesting!"
Venus Express' swansong experiment sheds light on Venus' polar atmosphere | European Space Agency
Pluto's atmospheric layers
Are planets atmosphere layers due to electromagnetic and plasma processes and circuits?
Especially when planets like Pluto have strata in their atmospheric environments?
The presence of methane, a powerful greenhouse gas, in Pluto's atmosphere creates a temperature inversion, with the average temperature of its atmosphere tens of degrees warmer than its surface, though observations by New Horizons have revealed Pluto's upper atmosphere to be far colder than expected (70 K, as opposed to about 100 K). Pluto's atmosphere is divided into roughly 20 regularly spaced haze layers up to 150 km high, thought to be the result of pressure waves created by airflow across Pluto's mountains.
Atmosphere of Pluto | Wikipedia