Midlatitude Cyclones & Frontal Depressions

Question 0

Mid latitude cyclones:

Answer 0

Frequent low pressure systems.

Question 1

Associated weather:

Answer 1

Rainfall.
Cold air.
Moist air.
Convective clouds.

Question 2

Mid latitude cyclones: Iceland low

Answer 2

Cold in winter, shallower in summer.

Question 3

Mid latitude cyclones: SH winters

Answer 3

W to E depressions; cold air flows from Antartica.

Question 4

Mid latitude cyclones: lows occur as

Answer 4

Frontal depressions, transporting warm moist air to the Arctic basin.

Question 5

Frontal depressions: warm front (3)

Answer 5

Leading edge of tropical maritime air.
Warm and moist air.
Originates over ocean in subtropical anticyclones.

Question 6

Frontal depressions: cold front (2)

Answer 6

Leading edge of polar maritime air.

Originates as polar continental air over N America / Asia.

Question 7

Frontal depressions: cold and warm fronts flow towards higher latitudes, the warm air is

Answer 7

Less dense so it rises above the cold air, which undercuts the rising air, creating a shallow sloping frontal surface.

Question 8

Frontal depressions: first sign of development is a

Answer 8

Developing wave with distinct cold and warm fronts.

Question 9

Frontal depressions: the faster moving cold front

Answer 9

Catches the warm front in a strong cyclonic circulation (AC in NH)

Question 10

Frontal depressions: when the two fronts meet,

Answer 10

Warm air is lifted off the surface - occlusion. The warm section shrinks until is it fully occluded and the cyclone dissipates.