Geography Y10 UK Environmental Challenges Flashcards
what is weather
the day to day meteorological conditions
what is climate
the long-term meteorological conditions
what happens to temperature as you increase latitude + why
decreases because the sun’s energy is spread over a wider area
what is continentality
land loses heat faster than the sea
why does continentality happen
- transparency of material (albedo effect)
- specific heat (substances heat up different amounts)
- heat movement (ocean currents etc.)
- evaporation
- sea surface temperatures
what is the North Atlantic Drift
- ocean current
- slow-moving body of water
- wind driven surface movement
- transports warm water to higher latitudes
- extension of North Atlantic Current
what is an air mass
a body if air thousands of miles across, which is of uniform temperature, pressure and humidity
property of continental air masses
dry
property of maritime air masses
wet
property of tropical air masses
hot
property of polar air masses
cold
property of arctic air masses
cold
what air masses come into the UK
- arctic maritime
- polar continental
- tropical continental
- tropical maritime
- polar maritime
features + direction of arctic maritime
- cold
- snow in winter
- comes from north (Arctic Ocean)
features + direction of polar continental
- dry (+ hot) in summer
- possible snow in winter
- comes from east (Eastern Europe + Russia)
features + direction of tropical continental
- hot + dry weather
- comes from south (Northern Africa)
features + direction of tropical maritime
- warm + wet
- comes from south west (from Central Americas over Atlantic Ocean)
features + direction of polar maritime
- cold
- showers
- comes from north west (Greenland + Northern Canada)
where do strong winds come from (area + air masses)
ocean areas:
* tropical maritime
* polar maritime
* arctic maritime
what is advection
movement across the atmosphere
impacts of strong winds
- railway lines destroyed - cannot transport goods/people/get to work
- sea wall destroyed - pollutants in water, costs to repair
- homes/personal items destroyed - increased stress
- habitats/ecosystems destroyed - e.g. trees uprooted
- coastal landforms destroyed - e.g. stack collapses
what air masses cause flooding
- tropical maritime
- polar maritime
- (arctic maritime)
how does consistent rainfall cause flooding
1) rain infiltrates + percolates
2) constantly happens
3) water table slowly rises
4) water table = surface level
5) surface runoff happens instead of infiltration = flooding
how does intense rainfall cause flooding
1) some rain infiltrates and percolates
2) rate of precipitation > rate of infiltration
3) some rain runs off surface instead = flooding