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Flashcards in MET ATPL Summary Deck (23):
1

How much (%) is water vapour in atmosphere?

0-5% (Highest level down low in areas of high temperatures).

2

C02 absorbs ____ radiation from the earth

long wave

3

What plays a major role in absorbing harmful ultra violet radiation from the sun?

The ozone

4

Það er talað um að eitt hp sé 27ft per 1000 ft. En í 18,000 ft, hvað er eitt hp þar?

48ft

5

Á hvaða "hæddarbili" liggur ozone layer?

18-30 km

6

Troposphere - stratosphere - ___phere - ___phere.

mesos, thermos

7

How much of the atmosphere's weight (%) lies below the tropopause?

75%

8

Hvað er hitastigið við tropopause við
a) poles
b) mid latitude
c) equator

Poles = -45°C
Mid latitude = -55°C
Equator = -75°C

9

Hvað er þetta? "station pressure adjusted down to MSL using actual station temperature. "

QFF

10

1 cal = _ gram of water heated 1 k (specific heat)

1

11

Wet bulb temperature tells you what, and where does it lie?

Roughly how moist the air is. Lies between dew point and OAT.

12

for the same isobar spacing, wind speeds are lower/higher near the equator.

higher

13

inside 15° lat., the geostrophic wind scale does not work, so tropical winds are calculated, not measured.
these winds are called _____ winds.

cyclostrophic

14

Hversu hátt er "laminar boundary layer" og "turbulent boundary layer"?

Laminar boundary layer = 1,000 - 1,500 ft
Turbulent boundary layer = 2,000 ft.

15

lines that join places with equal rate of change of pressure = ___bars

isallobars

16

The effect that acknowledges that air flows into a low and out of a high across the isobars is called the ___ effect

isallobaric effect

17

turbulence light=__G
moderate=0,5-1G
severe=>1G

light: undir 0,5G
moderate: 0,5-1G
severe yfir 1G

18

hvað gilda high level significant weather charts lengi?

3 hours before and after valid

19

Hvað gildir SIGMET lengi?

4 hours

20

ICAO er með 3 weather domains sem eru..

LL (low level): FL100-FL250
ML (Medium level): FL250-450
HL (High level): FL450-600

21

The ITCZ is between __NM and __NM wide.

30nm - 300nm

22

Ef að cold front/cold occlusion hreyfist á hraðanum "1" hver er þá hraðinn á warm front/warm occlusion?

2/3 af þeim hraða (67%).
Möo þá hreyfist warm front hægar.

23

Í hvaða hitastigi hættir icing?

0°C og - 45°C