Hubble observations of the planet's atmospheric temperature profile represent the first time astronomers have detected this precipitation process, called a «cold trap,» on an exoplanet. (sciencedaily.com)
The actual atmospheric temperature profile is more complicated, being roughly 290 K at the surface, 200 K at the tropopause (15 km), 270 K at the stratopause (50 km), 200 K at the mesopause (80 km), then increasing again to large values in the thermosphere. (realclimate.org)
When we were trying to quantify exactly how much «the greenhouse effect» alters the underlying non-GHG atmospheric temperature profile, we spent a considerable amount of time researching the various definitions we could find. (92.222.7.6)