Meteo 2
T2b
T2b
Kartei Details
| Karten | 448 |
|---|---|
| Sprache | Deutsch |
| Kategorie | Biologie |
| Stufe | Grundschule |
| Erstellt / Aktualisiert | 12.01.2015 / 04.08.2016 |
| Weblink |
https://card2brain.ch/box/meteo_2
|
| Einbinden |
<iframe src="https://card2brain.ch/box/meteo_2/embed" width="780" height="150" scrolling="no" frameborder="0"></iframe>
|
FC ?
Funnel Cloud = Tornando => wird nie vorausgesagt
Dauer Tornado und wind speed?
20 min bis max. 2-3 h, windspeed > 200 kt im spring and summer
Which thnderstorms generally produce teh most severe conditions, such heavy as hail and destructive winds?
Which phenomenon is always associated with a thunderstorm?
TS ?
TSGR?
TS = Thunderstorm ==> METEO mensch hat Blitze gesehen TSGR: Thunderstorms mit Niederschlag
Conditions necessary for Icing
1. Supercooled water droplets or high RG
2. Supercooled air craft
3 Different Icing on ground
1. hoar frost ( sublimation of water vapour => frost point = Flz wird immer kälter=
2. freezing rain
3. wet snow (surface temperature 0-2 Grad)
Icing in flight (VFR) => out of clouds
1. hoar frost (sublimation of water vapour) = Sublimination von Wasserdampf
2, freezing rain: Unter einer Wolke durchfliegen
Icing in flights (In clouds) 3 Arten
1. Clear ice
2. mixed ice
3. rime Ice
Claer Ice
- large drops
- droplet temerpature 0 and -6 =>NOT OAT
- Flow-back due to retarded freezing procedd => wächst mit der STrömzng
=> im CB Temp. auch -12 Grad, denn durch die Aufwinde kann die droplet temp. gut auf -6 erwärmt werden
Mixed ice ?
- large and small droplets
- droplet temperature around -10
- mixture of clear and rime ice ==> Wächst gegen die Strömung
Rime Ice
- small droplets
- droplet temperature less than -12
- droplets freeze instantaneously on impact => Schleiffpapier
Factors affecting the severity if icing
1. size of supercooled: kleine Tropfen können noch vorbeifliegen
2. concentration of supercooled water droplets:
3. shape of air craft => lower speed profil: Tropfen fliegen eher vorbei
3. proximity of hills: increased updrafts lead to larger droplets of higher concentration => Wenn Aufwinde wegen de Bergen stärker = störkere Vereisung
Difference moderate and severe icing
Moderate icing: change if heading and/or altitude may be consideres disirable
Severe Icing: immediate change of heading ad/or altitude may be considered essential
Was steht im Airmet and Sigment betreffend Ice
Airmet: alle Icing Sigmet: Warn nur von severe Icing
Anti-Icing?
Vorbeugend => heating by air or electrical heating
De-Icing
Methods which remove Ice => boots or chemical substances
One in-flight condition necessary for structural icing to form is
Wind shear werden angeben in
kt/100 ft
Sigmet wird wann rausgegeben
A zone of strong convection currents is encountered druing a flight. What do you make?
The mos dangerous low level wind shears are encountered :
Low level windshear?
CAVOK ?
ceiling and visibility okay
- Bodensicht (Horizontalsicht) 10 km oder mehr
- Keine Wolken unter 5000 ft oder der höchsten minimum sector altitude, MSA, falls diese höher ist
- Keine signifikanten Wettererscheinungen (Niederschlag, sichtbehindernde meteorologische Erscheinungen wie Dunst, Rauch oder Staub etc.)
- Keine Gewitterwolken (Cumulonimbus) und keine Wolken der Art Cumulus congestus, in der Luftfahrt als Towering Cumulus bezeichnet, unabhängig von deren Untergrenze
What is a trend forecast
How long from the time of observation is a TREND in a metar valid?
In Metar messages, the pressure groupe represents the
RVR runway 23: 400m
250 hPa
validity of a TAF
ATIS informations contains
METAR wind direction?
SPECI is a
RVR (as reportetd in a METAR) is always:
The cloud base reportet in the METAR os teh hight above
Under which conditions would you expect the heaviest clear ice accretion to occur in a CB
Which of teh following clou dtypes are most likely to produce light to moderate icing when they are not subject to orographic lifting and consists of supercooles cloud droplets`
Goar frost is most likely to form when ?
A vertical temperature profil indicates the possibility of severe icing when the temperature prfil
Freezing fog consists of
