Meteorology: Wave

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Meteorology Wave
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The General Idea
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Stability
As air rises and pressure falls, it expands and
cools. Process is approximately adiabatic i.e.
no external heating or cooling. Dry Adiabatic
Lapse Rate 3C/1000ft Saturated Adiabatic Lapse
Rate depends on pressure and moisture content,
but less than DALR. Potential temperature is the
temperature air would have if brought to sea
level pressure adiabatically.
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Ideal Situation
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Soundings
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Laminar And Turbulent FlowOn Wings
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Laminar And Turbulent FlowIn The Air
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Synoptic Charts

• NW Wind
• Moderate strength
• Straight or slightly anticyclonic isobars

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Wind Sheer

• Wind strength and direction varies with height
• In general it increases and veers with height due
  to surface friction
• Strong wind sheer tends to disrupt wave
• Check on soundings

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Satpics
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Conditions For Wave

• Suitable hills upwindgenerally NW wind
• Stable layer
• Moderate wind strength, typically 1520kts at
  surface
• Increasing wind strength with height
• Roughly constant wind direction at height
• Straight isobars or slight anticyclonic curve
• Luck!

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Forecast sounding for Portmoak