altitude_to_pressure_troposphere

rojak.core.calculations.altitude_to_pressure_troposphere(altitude: NumpyOrDataArray) → NumpyOrDataArray

Convert altitude to pressure for the troposphere

An implementation of equation 18 from ICAO manual [NACA3182]

\[P = P_0 \left( \frac{T_0 - aH}{T_0} \right) ^ n\]

where \(a\) is the lapse rate, \(H\) is the altitude, and \(n = \frac{G}{aR} = 5.2561\) is a dimensionless constant.

Parameters:

altitude (NumpyOrDataArray) – Altitude in m

Returns:

Pressure in hPa

Return type:

NumpyOrDataArray