MET ATPL Summary

Question 1

How much (%) is water vapour in atmosphere?

Answer 1

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

Question 2

C02 absorbs ____ radiation from the earth

Answer 2

long wave

Question 3

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

Answer 3

The ozone

Question 4

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

Answer 4

48ft

Question 5

Á hvaða “hæddarbili” liggur ozone layer?

Answer 5

18-30 km

Question 6

Troposphere - stratosphere - ___phere - ___phere.

Answer 6

mesos, thermos

Question 7

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

Answer 7

75%

Question 8

Hvað er hitastigið við tropopause við

a) poles
b) mid latitude
c) equator

Answer 8

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

Question 9

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

Answer 9

QFF

Question 10

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

Answer 10

1

Question 11

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

Answer 11

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

Question 12

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

Answer 12

higher

Question 13

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

Answer 13

cyclostrophic

Question 14

Hversu hátt er “laminar boundary layer” og “turbulent boundary layer”?

Answer 14

Laminar boundary layer = 1,000 - 1,500 ft

Turbulent boundary layer = 2,000 ft.

Question 15

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

Answer 15

isallobars

Question 16

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

Answer 16

isallobaric effect

Question 17

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

Answer 17

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

Question 18

hvað gilda high level significant weather charts lengi?

Answer 18

3 hours before and after valid

Question 19

Hvað gildir SIGMET lengi?

Answer 19

4 hours

Question 20

ICAO er með 3 weather domains sem eru..

Answer 20

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

Question 21

The ITCZ is between __NM and __NM wide.

Answer 21

30nm - 300nm

Question 22

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

Answer 22

2/3 af þeim hraða (67%).

Möo þá hreyfist warm front hægar.

Question 23

Í hvaða hitastigi hættir icing?

Answer 23

0°C og - 45°C

Question 24

The visibility transmitted in METAR is the greatest value which is reached within at least half the ___ ___of the aerodrome

Answer 24

horizon circle

Question 25

Hvaða vindar eru í geostrophic wind?

Answer 25

PGF + Coreolis force

Question 26

Hvaða vindar eru í gradient wind?

Answer 26

PGF + Coreolis force + Centrifugal force

Question 27

Hversu langt upp (í flight level) getur "hail" náð í CB cloud?

Answer 27

FL450

Question 28

Hvað kind of clouds would you have in a warm front occlusion?

Answer 28

low stratus

Question 29

A sea breeze would happen because of ____ in pressure for a given upper level due to surface heating by day.

Answer 29

increase

Question 30

Hver er formúlan sem þú notar til að finna DP?

Answer 30

Cloud base = (temp - dp) * 400

Question 31

Hver er formúlan til að finna tropopause height?

Answer 31

18 * cos(lat)

Question 32

Hver er formúlan til að finna F°?

Answer 32

1.8 * C + 32

Question 33

Hver er formúlan til að finna C°?

Answer 33

5/9 * (F - 32)

Question 34

Hvaða flight level er 150 hpa?

Answer 34

FL430

Question 35

Hvenær er VV tekið?

Answer 35

Measured when height of cloud base cannot be measured.

Question 36

Í hvaða charts eru isobars?

Answer 36

lower charts

Question 37

Hvaða þrír þættir ráða "the vertical extent of friction layers"?

Answer 37

Stability, roughness of surface, wind speed

Question 38

Hvað er visibility í Ci skýji?

Answer 38

1000m

Question 39

Hvað er í altostratus? | a) ice crystals b) water vapor c) water droplets

Answer 39

a) ice crystals c) water droplets

Question 40

Hvaða hiti er við tropopause við miðbaug?

Answer 40

-75°C

Question 41

Can you find an inversion in the stratosphere?

Answer 41

Yes

Question 42

Weather charts nota a) QNH b) QFE c) QFF d) QNE

Answer 42

c) QFF

Question 43

TREND is an addition to METAR/SPECI and is valid for _ hours.

Answer 43

2

Question 44

Supercooled water droplets occur between _°C and _°C

Answer 44

0 -> -15°C

Question 45

Hvernig ísing myndast þegar supercooled water droplets eru stórir? En litlir?

Answer 45

stórir: Clear ice (þarf ekkert endilega að dreyfa úr sér) | litlir: Rime ice

Question 46

Hvaða tvo flokka af "flugupplýsingum" inniheldur ATIS?

Answer 46

MET REPORT/SPECIAL

Question 47

Hvað má hver og einn atburður vara lengi í TEMPO?

Answer 47

60 min

Question 48

Hvað er ISOTAC?

Answer 48

Lines of equal wind speed.

Question 49

Hvaða visibility gefið upp í GAMET og hversu langt nær það?

Answer 49

MET visibility under 5000m

Question 50

Gradient wind is stronger/weaker in a high than a low

Answer 50

stronger

Question 51

Hvað gerist fyrir RH og water vapor ef þú hitar upp loft Í "KASSA"?

Answer 51

RH constant, water vapor increases

Question 52

Gust front er ascending/descending cold/hot air from a Thunderstorm

Answer 52

descending cold air from a thunderstorm

Question 53

Hvað mikið í gráðum bakkar vindur um nótt?

Answer 53

20°

Question 54

Hvernig úrkoma er talað um að falli úr Stratus og Supercooled fog?

Answer 54

snow

Question 55

Lýstu tákninu fyrir hail

Answer 55

þríhyrningur (bara eins og þríhyrningurinn sem þú setur fyrir aftan bíl sem er bilaður) nema hvítur.

Question 56

TS can occur in a warm front if the cold/warm air is unstable

Answer 56

warm

Question 57

Does a thunderstorm need high temperature to form?

Answer 57

no

Question 58

Á hvaða breiddargráðu liggur ITCZ á veturna? En sumrin?

Answer 58

Vetur: 0-7°N Sumar: 20°N (Við N Afríku)

Question 59

Where do westerly waves form?

Answer 59

Trade wind zone

Question 60

Hvernig veðurfar verður í Evrópu um sumar ef það kemur polar martime loft?

Answer 60

showers, good visibility

Question 61

Hvað er Tropical Revolving Storm breiður um sig?

Answer 61

270NM

Question 62

Hvernig visibility er í warm sector á sumrin?

Answer 62

5-10km

Question 63

Hvernig ský eru í warm sector á veturna?

Answer 63

Stratus

Question 64

Hvernig úrkoma er eftir að cold front hefur farið fram hjá?

Answer 64

showers

Question 65

Hvað gerist fyrir vindátt þegar polar front depression kerfi fer hjá (extensive svar)

Answer 65

Vindur veerar í öllu tilvikum nema að UPPER winds eftir cold frontið bakkar.

Question 66

Hvernig er úrkoma í cold air pool og um hvaða tíma dags er mesti hamagangurinn í veðrinu?

Answer 66

precipitation, mest í afternoon

Question 67

Vindurinn sem kemur að Madagaskar frá austri er hvernig vindur og í hvaða mánuði?

Answer 67

Cyclone, desember

Question 68

Where is the wind the strongest in a polar front jet?

Answer 68

Between a trough and a ridge

Question 69

Fyrir hvert hpa er 27 ft við sjávarmál, en hvaða formúlu notar þú til að finna þetta?

Answer 69

96 * T / P T: temperature í K P: Pressure í hPa

Question 70

A thunderstorm is preceeded by what kind of clouds?

Answer 70

Altocumulus Castellanos

Question 71

Hvernig finnur þú hraðann á warm front? Með því að mæla..

Answer 71

Distance between isobars on the front ITSELF (ekki warm sector) og segja sinnum 2/3 (66%)

Question 72

Hversu mikið er relative humidity í tropical rain climate?

Answer 72

80%

Question 73

in the southern hemisphere, surface friction causes the geostrophic wind to back/veer?

Answer 73

veer

Question 74

Vindurinn í METAR er meðaltal hversu margra mínútna á undan?

Answer 74

10 mín

Question 75

Clear ice, hvernig dropastærð er að mynda þetta og gerist það hægt eða hratt?

Answer 75

stórir dropar og þetta gerist hægt, alveg sama þótt þetta sé bara on leading edge.

Question 76

What is the mean height of the tropopause at the equator in January?

Answer 76

56,000 ft