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Vertical Structure and the Thermal Wind

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

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  1. Vertical Structure and the Thermal Wind • Reading, Ch. 12 of N-G Online • Wallace and Hobbs 7.2.7

  2. Where you heat matters • Impacts of heating on stability in trop vs. strat

  3. Stability and Isentropes

  4. Shear (note: not Sheer) • Two kinds of vertical shear • Examples (board) • Vertical shear of geostrophic wind has a special name _______________________

  5. 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!

  6. Thermal Wind Example

  7. 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?

  8. Which is it?

  9. Backing

  10. Veering - WAA

  11. To the Charts/Skew-Ts

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