Question

Question 2 10 pts What is the atmospheric pressure at a cruising altitude of 10 km? Use the scale height of H-7.4 km and the pressure at the sea level is 1013 hPa. Answer in hPa to three significant digits.

Answer 1

Here we apply Barometric formula which calculates atmospheric pressure variation with altitude.

Here we apply Barometric formula which calculates atmospheric pressure variation with altitude. Using compact form of Barometric low rightarrow Pressure variation with altitude is given by P(z) = P_0 e^-Z/H Here scale height is H Here scale height is H Z is altitude, P(Z) is pressure at altitude Z� P_0 = atmospheric pressure at ground level Given rightarrow P_0 = 1013 L Pa 4 = 7.4 km, Z = 10 km = > P(10 km) = (1013 kpa) e^-(10/7.40 = > P(10 km) = 262.26 kPa or P at 10 km is 262 h Pa