Atmospheric Pressure Flashcards
What pressure reduces aircraft performance?
Low pressure.
Whats the pressure at 18,000ft?
500hPa.
What does ab aneroid capsule measure?
Air pressure.
What does a barograph plot?
Air pressure.
What pressure is an anticyclone?
High.
Whats it called when an area of high pressure sticks out?
Ridge.
Whats it called when an area of low pressure sticks out?
Trough.
Where is a col located?
Between an area of 2 high and 2 low pressures.
What weather conditions does a col have in the summer?
Thundery.
What does a col have in the winter?
Foggy.
What does it mean when isobar lines are close together?
Large change in pressure so windy.
Pressure change is greater at lower or higher altitudes?
Lower.
If you are on the ground what does your altimeter read if the QFE is set?
Zero.
The absence of regular convection in the stratosphere due to warmer layers higher up and cooler ones lower down makes this part of the Earth`s atmosphere..
Turbulent free.
A cloud layer (1)_____ solar radiation leads to cooler maximum surface temperatures during the day. At night, clouds (2)_____ (3)_____ radiation and re-radiate it back towards the surface.
Reflect, absorb, infrared.
