altitude2density {afpt} | R Documentation |
This function computes the air density at a specified altitude in the Troposphere of the International Standard Atmosphere.
altitude2density(altitude = 0)
altitude |
(geopotential) altitude in meters above sealevel. |
rho = rho0*(1 + a*altitude/T0)^-(g0/R/a + 1) with rho0 = 1.225 kg/m3, a = -0.0065 K/m, altitude geopotential altitude in meters, g0 = 9.80665 m/s2, and R = 287.1 J/Kg/K.
Numerical value or array for the density in kg/m3
M. Klein Heerenbrink
U.S. Standard Atmosphere, 1976, U.S. Government Printing Office, Washington, D.C.
altitude <- seq(0,3000,100) # meters above sealevel density <- altitude2density(altitude)