WEATHER THEORY Aircraft Dispatcher
WEATHER THEORY Aircraft Dispatcher
2025/2026
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Define:
RELATIVE HUMIDITY - correct answer ✔A ratio, percent, fraction of the
actual water vapor present compared to that which could be present.
What largely determines the maximum amount of water vapor which the air
can hold? - correct answer ✔temperature
Virga implies....? - correct answer ✔turbulence from downdrafts
Define:
DEW POINT - correct answer ✔The temperature to which the air must be
cooled to become saturated.
The air is stable when the ALR is....? - correct answer ✔</= 2*C/1000'
Is heat lost/gained:
Melting: solid ----> liquid
Evaporation: liquid ----> gas
Sublimation: solid ----> gas - correct answer ✔Heat is GAINED.
The air is unstable when the ALR is....? - correct answer ✔when the ALR is
>2*C/1000'
Super cooled water is abundant between which temperatures and
in which cloud types? - correct answer ✔0*C --> -10*C in Stratiform clouds
0*C --> -15*C in Cumuliform clouds