Wind

1
Wind

• The movement of air from areas of high pressure
  to low pressure.

2
Cyclones

• Storm that spirals inward (counter-clockwise) to
  a low-pressure center.

3
Anticyclones

• Storm that spirals outward (clockwise) from a
  high-pressure center.

4
Global Winds

• More solar radiation at equator creates low
  pressure. This air rises.
• Less solar radiation at the poles creates high
  pressure. This air falls.
• Creates a general movement from N to S in
  Northern hemisphere.

5
Coriolis Effect

• Deflection of wind and ocean currents caused by
  the earths rotation.

6
Global Winds

• Trade Winds
• Westerlies
• Polar Easterlies

7
Breezes

• Land Breeze
• When wind moves from high pressure (over land) to
  low pressure (over water).
• Usually occurs at night.
• Sea/Lake Breeze
• When wind moves from high pressure (over water)
  to low pressure (over land).
• Usually occurs during the day.