Atmosphere

Question 1

Layers in Atmosphere

Answer 1

Troposphere - 75% of mass here/11km average
Tropopause
Stratosphere - Constant temp up to 20km isothermal/ozone
Mesosphere - 50km 0 degrees to -90 degrees
Thermosphere - 80km (ionsphere) 2000 degrees

Question 2

Troposphere Facts

Answer 2

Weather contained here
75% of airs mass
Almost all water vapour here
Equator regions higher and colder
Pole regions are lower and warmer
Folds caused by temp changes (jet stream)

Question 3

ISA Pressure rates TO remember

Answer 3

1013 hpa - MSL
700 hpa - 10,000ft
500hpa - 18,000ft
300hpa - 30,000ft
200hpa - 38,000ft
100hpa - 53,000ft

Question 4

Density Lapse rate TO remember

Answer 4

1.225kg/m3 - MSL
0.903kg/m3 - 10,000ft
0.609kg/m3 - 22,000ft
0.302kg/m3 - 40,000ft

Question 5

Temp of stratosphere in ISA

Answer 5

-56.5 degrees

Question 6

1nm to km

Answer 6

1nm = 1.852 km

Question 7

1m to ft

Answer 7

1m = 3.28ft

Question 8

1nm to ft

Answer 8

1nm = 6080ft

Question 9

Troposphere water vapour concentration

Answer 9

5-10% of atmosphere

Question 10

Troposphere mass

Answer 10

Consists of 3/4 of total atmosphere in weight

Question 11

ISA standards for the troposphere height and temp

Answer 11

36,000ft @ - 56.5 degrees

Question 12

Height of the troposphere at the equator

Answer 12

18km or 60,000ft

Question 13

Troposphere height and mid latitudes

Answer 13

11km - 36,000ft

Question 14

Height of the troposphere at the poles

Answer 14

8km - 26,000ft