The air density at a specific altitude above sea level (ASL) can be calculated using the ideal gas law, which relates air density (ρ), pressure (P), and temperature (T) for a given altitude. The formula for calculating air density at a specific altitude ASL is:
- ρ (rho) is the air density (in kilograms per cubic meter, kg/m³).
- P is the atmospheric pressure at MSL (in pascals, Pa).R is the specific gas constant for dry air, approximately 287.05 J/(kg·K).
- T is the absolute temperature at MSL (in kelvin, K).