Chapter 6 part 2 Flashcards Preview

GEOG 1180 > Chapter 6 part 2 > Flashcards

Flashcards in Chapter 6 part 2 Deck (11)
Loading flashcards...
1
Q

Anticyclone

A

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

2
Q

cyclone

A

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

3
Q

ITCZ

A

Thermally caused low pressure area (equatorial low)

4
Q

Jet stream

A

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

5
Q

Asian Monsoon Patterns

A
  • moisture laden air is driven towards the low-pressure ITCZ line
6
Q

Main types of local winds

A

Land and Sea Breezes

Mountain and Valley Breezes

Gravity Drainage Winds

7
Q

Land and Sea Breezes

A

created by different heating characteristics of land/water surfaces

8
Q

Mountain/Valley Breezes

A

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

9
Q

Gravity Drainage Winds

A
  • 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
10
Q

Gyre

A

Oceanic circulation systems

11
Q

Ocean Currents are shaped by…

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