Chapter 6 part 2

Question 1

Anticyclone

Answer 1

surface winds spiralling out from a high-pressure area in a clockwise direction

Question 2

cyclone

Answer 2

winds spiralling into a low pressure area in a counter-clockwise direction

Question 3

ITCZ

Answer 3

Thermally caused low pressure area (equatorial low)

Question 4

Jet stream

Answer 4

most prominent movement in upper level westerly wind flows. Irregular, concentrated, sinuous bands of geostrophic wind

Question 5

Asian Monsoon Patterns

Answer 5

• moisture laden air is driven towards the low-pressure ITCZ line

Question 6

Main types of local winds

Answer 6

Land and Sea Breezes

Mountain and Valley Breezes

Gravity Drainage Winds

Question 7

Land and Sea Breezes

Answer 7

created by different heating characteristics of land/water surfaces

Question 8

Mountain/Valley Breezes

Answer 8

Valley slopes: heat sooner during the day than floors

At night, heat is lost from the slopes and then subsides downslope where warmer, less dense air remains

Question 9

Gravity Drainage Winds

Answer 9

• Katabatic winds, Mistral winds
• cold air from high eleveations flows downhill at a speed causing frost damage on the slope/valley below
• dry, warm downslope winds flow downhill, can cause sublimation

Question 10

Gyre

Answer 10

Oceanic circulation systems

Question 11

Ocean Currents are shaped by…

Answer 11

• Wind’s frictional drag
• Coriolis force
• density differences
• Structural config. of continents/ocean flow
• astronomical forces causing tides