It is generally believed by the studies of G. I. Taylor, D. Brunt and others that the transfer of heat by atmospheric turbulence makes the actual lapse rate to approach to the adiabatic one. In arriving at this conclusion they made an assumption that the atmospheric eddy comforms to the pressure of its surroundings utomatically in moving from one layer to another. This assumption is not true, in the actual atmosphere. Because if it were true, there should be no micro fluctuations of pressure in the atmosphere. But it is experimentally proved that in our atmosphere there also exist fluctuations of pressure as well as of temperature, density, wind velocity, etc.
The present author has abandoned this assumption in considering the transfer of heat by turbulence, and has arrived at the conclusion that it is due to the action of atmospheric turbulence that one of the polytropic changes takes place in the actual atmosphere.