Global Atmospheric Circulation Flashcards
Low pressure air ________.
High pressure air _________.
rises
sinks
A cell is a number of circular _______________.
air movements
Air sinking toward the ground forms a ____ pressure area.
Winds on the ground move ______________these areas.
high
away from
Air rising from the ground forms a _____ pressure area.
Winds on the ground move ________ these areas.
low
toward
Winds curve as they move from areas of ____ pressure to areas of ____ pressure due to the _____________________.
high
low
Earths rotation
Pressure belts move up in the __________.
Pressure belts move down in the __________.
summer
winter
The UK is close to the boundary of ___________ from the ________ and ________________ from the ________.
The boundary between these two air masses is ___________.
polar air
North
sub-tropical air
South
unstable
It is often cloudy and wet in the UK because there is _________ in the ________________ belts on the ground.
The rising air _______ and ____________ to form clouds and rain.
rising air
low pressure
cools
condenses
It is hot and dry in the desert, because they are found ____ degrees off the equator,
where the air _______ to form a ____ of _______________.
No air ______ to form clouds or rainfall.
30
sinks
belt
high pressure
rises
It is hot and humid at the equator because air _____ to form a ________________ belt.
The sun is __________________, making it very hot.
rises
low pressure
directly overhead
What is 1 reason polar regions have low temperatures throughout the year?
The low angle of the sun means energy is more dispersed on the Earth’s surface in polar regions.
