# Met 5

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The flashcards below were created by user glennrooke on FreezingBlue Flashcards.

1. The 4 forces that have a fundimental influence on the wind velocity are what?
• Coriolis Force,
• Centripetal force,
• Friction forces.
2. Coriolis force acts at right angles to the (Isobars/wind direction?) and the 4 factors which determine it's strength are what?
Wind direction,

Earth spin, Air density, Wind Speed, Latitude.
3. In the Southern hemisphere, air flowing out from a (low/high?) pressure system will deflect to it's (right/left?) which produces a (clockwise/anticlockwise?) around a (high/low?)
• High
• Left
• Anticlockwise,
• High
4. When coriolis force is greater than the pressure gradient, the air will flow (clockwise/anticlockwise?) around a (high/low?) and vice versa
Anitclockwise - high

Clockwise - low
5. When the wind flows paralell to straight isobars, the winds is called a (?) wind, and when it flows paralell to curved isobars it is called a (?) wind.
Geostrophic,

6. When the friction layer is dense, the strength of the (pressure gradient/coriolis force?) reduces so that the wind starts to flow (across/parallel to?) the isobars, (inward to/parallel to/outward from?) the high.
Coriolis force,

Across,

Outward from.
7. The wind is said to Veer when it's direction changes in a (clockwise/anticlockwise?) direction.
Clockwise
8. After Sunrise in the southern hemisphere, the wind will (Veer/Back) and (increase/decresase?) in strength?
Back,

Increase.
9. When decending into a dense friction layer in the southern hemisphere, the wind will (Veer/Back), and (increase/decrease?) in strength.
Veer , decrease
10. The rotating cup anemometer measures the surface wind at approximatley ? meteres /agl, and measures the wind (speed/velocity?)
10 metres,

Speed
11. Windsock speeds at sock degrees of
0
30
45
75
90?
• 2
• 8
• 15
• 22
• 25+

## Card Set Information

 Author: glennrooke ID: 161378 Filename: Met 5 Updated: 2012-07-07 02:22:17 Tags: Wind Folders: Description: Wind Show Answers:

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