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
Describe cumulus clouds
Large puffy white clouds nice weather/ snow flurries
Describe a stratus cloud
Flat layers of grey clouds made of water droplets makes rain or fog bellow 6500
Difference between weather and climate
Weather is the day to day atmospheric conditions which can change quickly. Climate is the average atmospheric condition over long periods usually 30yrs and large areas of land
Climate change effects
Drought
Ice caps and glaciers melt
More forest fires
Spread of disease
Economic crash
Flooding and rising sea levels
More severe storms
Famine
What is rainfall effected by
Distance from equator hot=rain
Distances from sea
ocean currents can bring hot or cold water. Hot water means evaporation
Prevailing winds
Altitude
How do we know what climate was like in the past
Historical evidence
Tree rings
Ice cores
Adaptation vs mitigation
Adaptation is a life style change by adjusting to work with the changing climate and cope with the consequences. Mitigation is trying to stop climate change or slow it to prevent the consequences.
Why is it hotter at the equator
It’s closer to the sun so the sun rays are more intensive
What impact do ocean temperatures have on the climate and uk
Warm ocean currents move north and south from the equator which warms the air as it goes bringing mild weather to the uk
Why is the weather varied in the uk
We are a small island so lots of air masses compete to be over us
What weather is associated with low pressure
Rising air creating clouds and rainfall/ damp and gray
What is a average rainfall map called
Chloropleth
