Meteorology Flashcards
1
Q
Mean sea level T
A
15°C
1
Q
Mean sea level P ?
A
1013.25 hPA
2
Q
Mean sea level density p ?
A
1.225 Kg/m3
3
Q
Temperature lapse rate ?
A
1.98°C / 1000 ft up to tropopause
4
Q
Tropopause altitude ?
A
36090 ft (36000 ft / 11km) (-56.5°C)
5
Q
Pressure lapse rate
A
27 ft / hPA ( 30 ft/hPA)
6
Q
Density lapse rate
A
- NON LINEAR
- 22 000 ft = 50% (0.6 Kg/m3)
- 40000ft = 25 % (0.3 Kg/m3)
7
Q
Explain Inversion at the tropopause
A
- O3 ozone : O3 absorb uv radiation from the sun and projects that heat out an dheats up the surrounding air
8
Q
Stratopause altitude :
A
50 km
9
Q
Mesopause altitude
A
80 km
10
Q
What’s insolation :
A
It’s how much energy is absorbed by the earth surface per unit area
11
Q
Formla to convert “T” to “F”
A
°F= (1.8 x °C)+32
12
Q
Short explanation of Diurnal variation
A
When its gets cold at night
13
Q
What’s the phenomena that heat the air (7), specify and explain them ?
A
- Conduction : Heat through contact
- Convection : Altitude increase, density decrease, wich dissipate heat into the surrondding air
- Advection : Warm air come from a hotter side
- Turbulence : Mixing air
- Latent heat : clouds wich dissipate energy
- Radiation : Long waves radiation reflected by the surface and then heat air molecules
- Inversion : T increase when ALT increase
Low energy sun rays
14
Q
What are types of inversion, explain them ?
A
- Ground inversion : Cold clear nights with very low wind, results fog or low clouds
- Subsidence inversion : Air is force down from mountain ( wairm air keep above cold air)
- Frontal inversion : Air rolls in and the warm air sits on top of the colder air
