Stats of the ISA (Met) Flashcards
1
Q
Air temperature at mean sea level
A
15℃
2
Q
Air pressure at mean sea level
A
1013.25 hPa
3
Q
Barometric lapse rate
A
30ft / 1 hPa
4
Q
Air density at mean sea level
A
1,225 kg/m^3
5
Q
Height of the tropopause at °45
A
11km
6
Q
Temperature gradient between mean sea level and tropopause
A
-2K / 1000ft
7
Q
Temperature gradient in lower stratosphere
A
Isothermic
8
Q
Temperature gradient in upper stratosphere
A
+0.3K / 1000ft
9
Q
Nitrogen content
A
78%
10
Q
Oxygen content
A
21%
11
Q
Argon content
A
0.9%
12
Q
Carbon dioxide content
A
0.03%
13
Q
Water content
A
0%
14
Q
Tropopause height at the equator
A
16-18km
15
Q
Tropopause height at the poles
A
6-8km
