Aviation Dictionary
میزان کاهش یا افزایش دما با تغییرات ارتفاع بدون انتقال گرما به اطراف
The rate at which air cools as it is forced upward or warms as it sinks, if no heat energy is added to it and none is taken from it. under standard conditions, the adiabatic lapse rate of dry air is 3 °c (5.4 °f) per thousand feet.