Yr 9 Climate And Weather Flashcards
3 types of clouds
Cirrus cumulus stratus
If air pressure is low, air is
Rising
If air pressure is high, air is
Sinking
3 types of rain
Relief convection frontal
Causes of beast from the east 4
Cold air came across Europe from Siberia
Rural areas experienced -12
Wind speeds exceeded 70mph
Cold air from Europe picked up moisture from North Sea causing snow
Effects of the beast from the east 6
Thousands of school closures from multiple days
10 deaths
Snow drifts 7meters
10-20cm fell in 3 days
Stranded cars on roads
Flights delayed or cancelled
Responses to beast from the east 5
Met office red weather warning
Red Cross gave blankets to stranded people at Glasgow airport
Snow ploughs and gritters
Armed forces transported NHS workers
NHS cancelled non urgent operations
What are isobars
They are on synoptic charts to show lines of equal pressure indicating areas of high and low pressure
What 3 ways do we know what climate was like in the past
Historical evidence
Tree rings
Ice cores
Explain the difference between the greenhouse gases effect and the enhanced greenhouse effect
Greenhouse gasses (CO2, nitrogen, methane) are naturally occurring and help retain heat from the sun in our atmosphere to support life. When we burn fossil fuels gases releases causing a build up in the atmosphere. This is the enhanced greenhouse gases effect resulting in the earth warming rapidly as sun light can less easily be reflected back out of the atmosphere.
Describe relief rain
Hot wind meets a line of hills so air rises, condensed and falls as rain
How is cloud cover measured
With your eyes in eighths/octaves 0=none 4=half 8=no clear
Describe convection rainfall
Hot ground warms air which rises and condenses and forms clouds and we get rain
Describe frontal rainfall
A cold air mass meets a cold one making clouds and rain the most common type
Describe cirrus clouds
Nice sunny weather thin feathery clouds of ice crystals above 1,000 feat