Meteo T1 + T2
Meteo
Meteo
Convective temperature
the surface air temperature whichan air parcel at least must have to be able to rise up tp the condensation level by free convection is called convective Tempeature
Wie verschwinden Wolken
Subsidence of air or mixing with direr air
pure water clouds bestehen aus ?
consist of matured air and liquid water droplets => below -10 level and containing warm and/or supermodel liquid water droplets
Wann kommen pure cie clouds vor?
above -40 degrees
Low level clouds: Höhe
0 - 2km (6500ft)
Medium level clouds: Höhe
2 km bis 7 km /23'000 ft)
HIgh-level clouds: Höhe
between 5km and 13 km (43'000 ft)
What are the main constituents of high-level clouds?
water vapour and ice crystale
Wie sehen Cirren aus
wie Federn
Humilis
is applied to cumulus clouds with a small vertical extent often close fine weather clouds
ceiling
lowest layer of clouds below 20'000 ft above ground => at least half of the sky => least BKN
Occasionally
Frequent but well separated => are covered by 50 to 75%
Embedded
hidden within other clouds
FOG
visibility below 1 km; rel. humidity 100% at 2m
MIFG
Shallow fog; visibility below 1 km; rel. humidity 100% below 2m Unterhalb 2m = Bodennebel
FZFG
freezing fog; around -30 Grad => contains supercooled droplets => freeze to rime when the contact surfaces
Ice fog
belwo -30; consists of ice crystals only
BCFG
patches of fog; fog randomly cover the aerodrome and often accompanied with a little wind
PRFG
parts of fog; cover a substantial part of aerodrome
BR
Mist; mainly water droplets => humidity between 80 - 100 %
Luft besteht aus:
1. 2. 3. und Wasserdampf?
1. 78% Stickstoff N2 2. 21 % Sauerstoff O2 3. 1% Edelgasse 0-4% Wasserdampf h20, Jedoch da es immer ein unterschiedlicher Wert ist, wird er nicht in der Grundzusammensetzung angezeigt
relative Luftfeuchtigkeit
Normal: 40-50 % = Wohlfühlfeutigkeit ==> Nicht das Selbe wie Wasserdampf(H2O)
Aerosole
Staub, Russ, Sand, Salz, Pollen = Feste Bestandteile der Luft ==> bindet sich sehr schnell mit der Luft
4 Phasen der Luft
1. Troposhere 2. Stratosphere 3. Mesosphere 4. Thermosphere
Troposhere; 1. Temperaturverlauf 2. Höhe
0 m = 15 Grad bis auf 11 km = -56,5 Grad
Stratosphere 0. Unterteilung 1. Höhe 2. Temp.
0. Tropopause = kalte Stratosphere warme Stratosphere 1. 11 km bis 20km = Tropopause 20m bis 50 km warme Stratosphere 2. 11km=-56.5 20km=-56,5 50km= -02.5= ca. wie auf 0m
Sea level
0m, 1013,2 hPa, 15 Grad, Dichte 1.225 kg/m^3
Tropopause
11 km, 36'089 ft, 226.3 hPa, -56,5 Grad, 0.364 kg/m^3
Temperature lapse rate
Abkühlung 2Kelvin/1000 ft oder 0.65 Kelvin/100m
Inversion
Mit zunehmender Höhe steigt die Temperatur
Isothermie
Temperatur bleibt über einen Abschnitt konstant
Mesosphere 1. Verlauf mit Temp2. Höhe
1. zuerst Stratospause 50 bis 55km; dann bis 85km2. 55km ca. 0 Grad 85km -100Grad
Thermosphäre 1. Verlauf 2.Höhe
wird wärmer bos 1200 Kelvin 2. 85 km bis 120 km
Wieso wird die Luft in der warmen Stratosphäre wärmer?
Ultraviolete Strahlung wird absorbiert ==> Ozon (O3) nimmt UV Strahlen auf (O3 + UV = O2 und O) ==> Durch FCKW schneller zersetzt
absorbieren
aufnehmen
WO wird am meisten UV Strahlung aufgenommen?
20 - 35 km
Wo befindet sich der meiste Wassergehalt ?
TP = Tropopause
Tiefe TP = xy Hohe TP = xy
tiefe TP ist warm, hohe TP ist kalt
Die 4 TP?
1. Polar Tropopause ca. 8 km= -50 K 2. Subtropopause ca. 11 km= -56 K 3. Equatorialtropopause ca. 16km = -70 K 4. (Nur im Winter) Arctic TP ca. 6-7 km = -45 K
Meter ind ft umrechnen
Meter mal 3.3
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Flashcards
Convective temperature
the surface air temperature whichan air parcel at least must have to be able to rise up tp the condensation level by free convection is called convective Tempeature
Wie verschwinden Wolken
Subsidence of air or mixing with direr air
pure water clouds bestehen aus ?
consist of matured air and liquid water droplets => below -10 level and containing warm and/or supermodel liquid water droplets
Wann kommen pure cie clouds vor?
above -40 degrees
Low level clouds: Höhe
0 - 2km (6500ft)
Medium level clouds: Höhe
2 km bis 7 km /23'000 ft)
HIgh-level clouds: Höhe
between 5km and 13 km (43'000 ft)
What are the main constituents of high-level clouds?
water vapour and ice crystale
Wie sehen Cirren aus
wie Federn
Humilis
is applied to cumulus clouds with a small vertical extent often close fine weather clouds
ceiling
lowest layer of clouds below 20'000 ft above ground => at least half of the sky => least BKN
Occasionally
Frequent but well separated => are covered by 50 to 75%
Embedded
hidden within other clouds
FOG
visibility below 1 km; rel. humidity 100% at 2m
MIFG
Shallow fog; visibility below 1 km; rel. humidity 100% below 2m Unterhalb 2m = Bodennebel
FZFG
freezing fog; around -30 Grad => contains supercooled droplets => freeze to rime when the contact surfaces
Ice fog
belwo -30; consists of ice crystals only
BCFG
patches of fog; fog randomly cover the aerodrome and often accompanied with a little wind
PRFG
parts of fog; cover a substantial part of aerodrome
BR
Mist; mainly water droplets => humidity between 80 - 100 %
