Weather Flashcards
what are the 4 factors that affect weather
latitude, longitude, aspect/relief, continentality
what is latitude
the distance or rays from the sun (directed at the equator)
altitude
height
what is aspect/relief
the way/direction something faces (north/south facing)
explain Continentality
the land and sea climate conditions (how body of water affects land temp)
how does the factor latitude affects weather
further north = colder as sun rays is less concentrated as away from equator
colder in Scotland as more atmosphere for sun rays to pass through
how does the factor altitude affect weather
wind speed increases as altitude increases, less friction in higher places making area more exposed.
temp decreases 1 degrees for every 100m increase in height
how does the factor aspect/relief affect weather
in northern hemisphere the south facing slopes are warmer as they face the sun.
north facing slopes are colder as receive no sun
how does the factor Continentality affect weather
north Atlantic drift keeps Uk west coast temp warmer than the east.
further inland has greater annual range in temp as away from oceans affects
characteristics of an anicyclone
far apart isobars
gentle clockwise winds
warm (high pressure) - low cloud coverage
no fronts
anticyclones affect the weather conditions in winter with..
crisp dry conditons - good for travel
bright but no sun, frost/cold, no heat at night as quickly lost
- pipes freeze up, diifculty driving
anticyclones affect the weather conditions in summer with..
high temps, long days - increase in water demands and ice cream sales - good for holiday activities
wind is measured in what?
knots
process of a depression (pain)
as the depression approaches, temp falls as air cools, cloud coverage increases, strong wind - far apart isobars.
warm front then appears, temp increase, some cloud coverage and showers
cold front comes - cloud coverage increase, heavy precipitation due to cumulonimbus clouds, temp drops.
cold front then moves away over penzance - clear conditions and lower cloud cover with some showers. Air pressure increases again
(wind moves anticlockwise
middle front always has worst weather)
What are the 4 air masses and their directions going towards the UK
*Polar maritime - north south
Polar continental - north west
—
Tropical continental - north east
*Tropical maritime- north west