12 terms

Depressions

A set to help you study Weather and Climate at Advanced level, from http://www.coolgeogaphy.co.uk
STUDY
PLAY

Terms in this set (...)

low pressure
a mass of rising warm air that may bring rain or snow.
depression
a weather system that affects the British Isles characterised by warm air meeting cold air at the Polar front
warm front
a front where warm air moves over cold air and brings drizzly rain and then are followed by warm and clear weather
cold front
forms when cold air moves under warm air which is less dense and pushes air up (produces thunderstorms, heavy rain or snow)
occluded front
a front where a warm air mass is caught between two colder air masses, the warm air is no longer in contact with the ground
Trough on Rossby wave
is the location where depressions form
Embryo depression
the initial stage of depression formation where a wave is formed on the Polar Front
Mature depression
a clear depression with falling pressures and 2 clear bands of precipitation
Decay stage
where a depression starts to die and peter out, pressures start to rise again
Cirrus, cumulus, nimbostratus clouds
are found on the warm front
Cumulonimbus clouds
are found on the cold front
1987 storm
a case study of an extreme depression