Met 5

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Author:
glennrooke
ID:
161378
Filename:
Met 5
Updated:
2012-07-06 22:22:17
Tags:
Wind
Folders:

Description:
Wind
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  1. The 4 forces that have a fundimental influence on the wind velocity are what?
    • Pressure Gradiant,
    • 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,

    Gradient. 
  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+

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