WEATHER THEORY Aircraft Dispatcher
2024/2025 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