In flight mechanics and meteorology, the troposphere is the lowest layer of Earth’s atmosphere, extending from the surface of the Earth up to an average altitude of about 7 to 17 kilometers (4 to 11 miles). It is the layer in which most weather phenomena occur and where virtually all commercial and general aviation flights take place.
T=T0-λ*k
- T0: This represents the temperature at the reference altitude or surface (often denoted as “z=0”). In meteorology and flight mechanics, T0 is commonly used as the surface temperature, and it is the initial temperature value from which the temperature variation is calculated as altitude increases.
- λ: This is a constant that represents the temperature lapse rate. The temperature lapse rate is the rate at which the temperature decreases with increasing altitude. It is typically expressed in units of degrees Celsius per unit of altitude (e.g., degrees Celsius per meter or degrees Celsius per kilometer).
- k: This variable represents the altitude or height above the reference level (z=0) at which the temperature is being calculated.