Does gravity play a role (other than confining the atmosphere, driving convection, etc.) in determining the temporal and spatial mean temperature at the surface of Earth?
In other words, does the gravi-thermodynamics of the adiabatic lapse rate make a significant contribution to determining the average planetary surface temperature on earth?
My short answer is "no". Here is a summary of my answer:
The planetary surface temperature is a result of radiation balance at the surface (including also other heat losses at the surface, such as convection and evaporation), irrespective of thermo-gravitational effects in the atmosphere above the surface. All the relevant energy transfers are "at the surface" because the temperature in issue is the surface temperature.
Lapse rate gravi-thermodynamic considerations are vital for calculating the altitude profile of temperature of the atmosphere, however, the exact temperature profile of the atmosphere has little effect on the resulting surface temparature that is constained solely by the energy exchanges AT THE SURFACE (caps for emphasis).
The exchange below was posted as response comments related to THIS VIDEO. The editor of the video had originally inserted a bubble comment critical of my point being made at approximately 26m33s. Then Gerald Sahd commented that the buuble was incorrect and this discussion followed.
Pinned by 1000frolly
8 months ago
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