"could solve the mystery of the unusually high temperatures observed throughout Jupiter's upper atmosphere, which can't be explained by solar heating alone. [nor by a radiative greenhouse effect]"
"Previous heat-distribution models suggested that Jupiter's atmosphere should be much cooler, largely because the planet is about fives times further from the sun than Earth is. So, having ruled out solar heating from above, the authors of the new research found evidence suggesting this atmospheric heating is largely driven by a combination of gravity waves and acoustic waves generated by turbulences in the atmosphere below the Great Red Spot.
"Giant planets like Jupiter are measured to be hundreds of degrees warmer than current temperature models predict. Before now, the extremely warm temperatures observed in Jupiter's atmosphere have been difficult to explain, due to the lack of a known heat source."In other words, the very hot atmospheric temperatures on Jupiter cannot be due to an Arrhenius radiative greenhouse effect. The atmosphere of Jupiter is mostly comprised of the non-greenhouse gases hydrogen and helium, but does contain small amounts of the IR-active 'greenhouse' gas water vapor. However, the Maxwell/Clausius/Carnot gravito-thermal greenhouse effect perfectly explains the observed atmospheric temperature profile of Jupiter, making Jupiter the ninth planet in our solar system to follow the simple Poisson relationship of atmospheric mass/gravity/pressure to temperature. The Poisson relationship was demonstrated in another recent paper:
Referring to fig. 1 of the paper, we find at 0.1 bar pressure on Jupiter, the corresponding temperature is~112°K, and at 11 bars pressure corresponds to 400°K or 260°F:
|Fig 1 from the paper. The dotted line is the atmospheric temperature vs. pressure curve on Jupiter. At 11 bars pressure, the temperature is 400°K or 127°C or 260°F.
T/To = (P/Po)^0.286 ~= 400°K/112°K = (11 bar/0.1 bar)^.286
T = temperature at 11 bars pressure = 400°K
To= temperature at top of atmosphere = 112°K
P = 11 bars
Po= pressure at top of atmosphere = 0.1 bar
and once again demonstrates that the catastrophic anthropogenic global warming (CAGW) theory is a myth, that atmospheric temperatures are controlled by mass/gravity/pressure and are independent of greenhouse gas concentrations on any of these 9 planets with atmospheres, including Earth. Adding additional CO2 plant food to the atmosphere will undoubtedly green the Earth, but Earth's climate sensitivity to CO2 is effectively zero.
Related: How can Uranus have storms hot enough to melt steel? A runaway greenhouse effect?