WTS - Weather Maps

Question 1

Isobars

Answer 1

Lines connecting areas of equal pressure, measured in millibars, plotted at intervals of 5 millibars, closely spaced = strong winds, widely spaced = gentle breezes (air pressure is measured by barometers)

Question 2

Millibars

Answer 2

Amount of weight or pressure air exerts on ground at measured point

Question 3

Arrows

Answer 3

Indicate wind direction

Question 4

Anticyclones

Answer 4

Areas of high pressure, marked as H, winds flow anticlockwise, bring fine + settled weather, clear skies, warm temperatures, gentle breezes

Question 5

Depressions

Answer 5

Areas of low pressure, marked as L, winds flow clockwise, bring wet + windy weather, rain, cool temperatures, stronger winds

Question 6

Tropical Cyclone

Answer 6

Extremely low pressure zone, marked as T, winds flow clockwise (at gale force), very high rainfall

Question 7

Cold front

Answer 7

Advancing cold air, brings sudden heavy rain, most common cause of rainfall in New Zealand

Question 8

Warm front

Answer 8

Advancing warm air, brings long drizzle patches

Question 9

Stationary front

Answer 9

No movement of air masses, brings long continuous rain

Question 10

Occluded front

Answer 10

Warm air uplifted by cold air, brings long rainy spells