Temperature Change in the Troposphere Due to Heat Exchange and Internal Friction

Temperature Change in the Troposphere Due

to Heat Exchange and Internal Friction

Kocharyan Vilen,

Palyan Aksanna

Summary

Key words: the first law of thermodynamics, troposphere, entropy, temperature gradient, internal friction, enthalpy

The methodological work examines the temperature change in the troposphere caused by heat exchange in the Earth’s gravitational field and by internal friction in atmospheric flows. To explain the mechanism of adjustment and formation of the temperature gradient value in the atmosphere, the first law of thermodynamics in the Earth’s gravitational field is considered. It has been clarified that in the presence of airflows two types of processes occur: thermal and non-thermal (subthermal). It has been shown that the presence of a certain temperature gradient is necessary for the stationarity of the gas state in an external potential field. Considering the Earth’s troposphere as an isolated system, the numerical value of this gradient has been calculated, which corresponds to experimental data with a good approximation. From the results obtained, it follows that the transfer of enthalpy, due to thermal motion in gases, occurs more intensively than the transfer of mechanical energy.

PDF 
DOI: https://doi.org/10.58726/27382923-2025.2-8