Mid Latitude Cyclones

Question 1

Air mass

Answer 1

Huge mass of air extending 100’s km’s. Similar temp+humidity

Question 2

Backing

Answer 2

AC change in wind direc. Occurs as MLC passes over

Question 3

Cold front

Answer 3

leading edge of cold air mass of MLC

Question 4

Cold Front occlusion

Answer 4

Occlusion where overtaking cold air is colder than the cold air ahead of it. Overtaking cold front lifts warm air off ground

Question 5

Cold Sector

Answer 5

Mass of colder air behind cold front in MLC

Question 6

Cyclogenisis

Answer 6

Dev and Strengthening of MLC and TC

Question 7

Front

Answer 7

Boundary separating 2 air masses with dif density

Question 8

ITCZ

Answer 8

Area where tropical easterlies converge

Question 9

Jet Stream

Answer 9

Band of strong westerly winds high in atmosphere(troposphere). Partly controls dev of MLC

Question 10

MLC

Answer 10

Large low pressure weather sys made of warm+cold fronts. Aka extra-tropical cyc, temperate/frontal depression

Question 11

Occluded Front

Answer 11

Front formed when cold front overtakes and replaces warm air mass

Question 12

Occlusion

Answer 12

Decaying stage in dev of MLC. Cold front catches up with warm front and lifts warm air off ground and meets cold air ahead of warm front

Question 13

Polar Front

Answer 13

Zone separating cold polar air(easterlies) and warm trop air(westerlies)

Question 14

Veering Wind

Answer 14

Shift of wind in C direc over time at specific location. eg S –> SE

Question 15

Warm Front

Answer 15

Leading edge of a warm air mass

Question 16

Warm Front occlusion

Answer 16

Overtaking cold air is warmer than cold air ahead of it

Question 17

Warm Sector

Answer 17

Warm air behind warm front of MLC

Question 18

Where do MLC dev

Answer 18

Between 30-60 N + S of equator. Forms at polar front where warm W and cold PE meet

Question 19

Conditions for dev

Answer 19

Cold P air mass from Cold PE and Warm trop air from warm W wind. Differences in wind patterns(direc) contribute to resultant formation