Depressions And Anticyclones

Question 1

What is a high pressure weather system

Answer 1

An anticyclone

Question 2

Name a low pressure weather system

Answer 2

A depression

Question 3

What weather comes with a depression

Answer 3

Cooler temperatures
Rain
Strong winds

Question 4

Name the clouds that can be seen in order of a depression

Answer 4

Cirrus
Cumulonimbus
Cumulus

Question 5

Describe a depression

Answer 5

At the depression approaches: temperatures are cool and strong winds no rain cirrus clouds
As the warm front approaches: rain and drizzle as warm air is forced to rise
In the warm sector:temperatures increase mainly dry stratus clouds
At the cold front: temperature falls, cumulonimbus clouds, heavy rain
As the cold front moves away: scattered showers, cumulus clouds

Question 6

Describe an anti cyclone

Answer 6

An anticyclone is a high pressure weather system
It involves circling air sinking and warming up as it nears the ground
Clouds do not form
Isobars are spaced apart so no wind
Calm conditions
No fronts so moves slowly

Question 7

Describe a summer anticyclone

Answer 7

Cloudless skies and bright sunshine
At night temperatures fall rapidly through heat escaping through radiation as there are no clouds

Question 8

Describe a winter cyclone

Answer 8

Fog or mist
Rapid cooling occurs due to lack of cloud cover
Water vapour condenses and becomes mist or fog
Low angle of the sun means that rays can’t disperse the fog