Vertical Structure and the Thermal Wind

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Vertical Structure and the Thermal Wind - PowerPoint PPT Presentation

Vertical Structure and the Thermal Wind. Reading, Ch. 12 of N-G Online Wallace and Hobbs 7.2.7. Where you heat matters. Impacts of heating on stability in trop vs. strat. Stability and Isentropes. Shear (note: not Sheer). Two kinds of vertical shear Examples (board)

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Vertical Structure and the Thermal Wind
• Reading, Ch. 12 of N-G Online
• Wallace and Hobbs 7.2.7
Where you heat matters
• Impacts of heating on stability in trop vs. strat
Shear (note: not Sheer)
• Two kinds of vertical shear
• Examples (board)
• Vertical shear of geostrophic wind has a special name _______________________
Thermal Wind Equation
• Take vertical derivative of Vg, use hypsometric (see derivation in text)
• The link between pressure/height/wind and temperature.
• Doesn't “blow”, but if it did, it would with colder temperatures (smaller thicknesses) to left, and harder with more temperature contrast!
• Explains a lot, like the existence of the polar jet!
Cold and Warm Core
• Thought Experiment, Low center which gets more intense with height (stronger winds)
• Multi Color Dry Erase
• How about the reverse?
• What is this example of?