Depression

Question 1

what is a depression?

Answer 1

is where cold polar air meets warm tropical air, leading warm front with trailing cold front, weather dominated by unstable conditions, air is rising resulting in low pressure.

Question 2

how is precipitation formed?

Answer 2

warm air is forced over cold front condenses forming precipitation. short heavy rain over small area. the rising air cools and condenses forming clouds weather is often wet and cloudy

Question 3

what precipitation does a warm front cause?

Answer 3

prolonged drizzle or rain over wide area due to shallow angle of front.

Question 4

what happens when cold front meets the warm front?

Answer 4

due to cold moving faster it catches up and lifts the warm front creating an occluded front

Question 5

what are impacts of depressions on people? warm

Answer 5

low cloud poor visibility - bad for most transport
continuous light rainfall - good for plants in summer bad for tourism, could cause build up of snow in winter
strong wind - possible impact on transport and structural damage

Question 6

what are impacts of depressions on people? cold

Answer 6

heavy rain with hail - poor visibility possible flooding in summer, localised snowing in winter
strong wind - most forms of transport in summer, possible structural damage in winter
lightening - electrical supplies could be damaged

Question 7

what are impacts of depressions on people? occluded

Answer 7

prolonged heavy rainfall - agriculture disruption in summer flood potential, same as summer in winter but also with widespread snow