Two bodies subjected to the same flux.


It is always there - a strongly irradiated area (24/7), which area moves on the rotating surface, but which always faces sun.


The planet 2, whith a higher Ncp product develops lower IR-emitting conditions(temperatures), and the planet 1, with a lower Ncp product develops higher IR-emitting conditions


🟠 Immediate IR1 > Immediate IR2


The planet 2 is not so hot at local noon hours, so it gives Immediatelly out less IR, so less heat is immediatelly lost.


The planet 1 is warmer at local noon hours, but those higher temperatures only weakly affect locally the planet average surface temperature rise, as it influences at their first power (T), whereas those higher temperatures - IR emission at fourth power (T^4) - they, at the same time, they lessen the average surface temperature significantly, because those the higher local noon temperatures contemplate for the much higher Immediate IR energy emission.


👉 Tmean2 > Tmean1


The higher Immediate IR emission constitutes higher energy loss - lower heat input.


What we have is that the higher Ncp product lessens the Immediate IR emission. A planet absorbs more energy in form of heat then. More absorbed heat results to higher average surface temperature (Tmean).


🧠 Physical interpretation:


The higher average surface temperatures are well documented by the planets average surface temperatures (Tsat) measurements, alongside with their respective spin rates N, and, from the surfaces chemical composition, the values of surfaces specific heat cp.


In that context we claim, that planets and moons with a higher Ncp product - they are warmer, because they absorb more solar energy in form of heat!

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https://www.cristos-vournas.com


  • Planetary mean temperature increases with the product N⋅cp ​(rotation × thermal inertia).
  • Slow rotators like the Moon absorb less heat, while fast rotators like Earth absorb more heat.
  • The higher N⋅cp ​ product causes more heat absorption, not only the more even heat distribution, but also the higher heat absorption.
  • When two planets are subjected to the same solar flux, the one with the higher N⋅cp ​ product has a more even the absorbed heat distribution, but also the one with the higher N⋅cp ​ product absorbs more heat, and therefore, because of the combined double effect (more heat absorption and more even the absorbed heat distribution), that planet develops a higher average surface temperature.
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    https://www.cristos-vournas.com