3.1.1.3 Weather Hazards Flashcards
what is global atmospheric circulation
movement of air across the planet which occurs in a specific pattern
high-pressure system way to remember
happy weather
low-pressure system way to remember
lashing down
high-pressure features
cool air descends
reduces cloud formation
light wind and settled weather
air moves clockwise
low-pressure features
hot air rises
the air evaporates and condenses to form cumulonimbus clouds
rain
air moves anti-clockwise
ferrel cell
30-60
hadley cell
0-30
polar cell
60-90
which directions do trade winds move
towards areas of low pressure/away from areas of high pressure
how are low-pressure areas caused
air is rising from the ground so the weather is unsettled
how are high-pressure areas caused
air is descending so the weather will be settled
three names for tropical storms
cyclones, typhoons and hurricanes
countries affected by a cyclone
india, madagascar, australie
countries affected by a typhoon
japan, south-east asia, phillippines
countries affected by a hurricane
carribean, usa