3. Wind Flashcards
1
Q
Pressure Gradient Force
A
Air traveling from a high pressure area to a low pressure area. Amount of difference determines strength of wind
2
Q
Coriolis forces
A
Based on earth’s rotation. Moves air to the right in northern hemisphere, and left in southern
3
Q
Buy- ballot’s law
A
In north hemi, air flows clockwise around a high and counter clock wise around a low
4
Q
Friction
A
Surface of the earth exerts a frictional drag on the air flowing just above it and causes the wind to slow somewhat and change direction slightly
5
Q
Veering
A
Wind change in a clockwise direction
6
Q
Backing
A
Wind change in a counterclockwise direction
7
Q
At 3000’
A
Fiction is not a factor
Wind speed doubles
Wind veers 30° to become parallel to isobars
