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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. Stability and Isentropes. Shear (note: not Sheer). Two kinds of vertical shear Examples (board)

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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
Where you heat matters
  • Impacts of heating on stability in trop vs. strat
shear note not sheer
Shear (note: not Sheer)
  • Two kinds of vertical shear
  • Examples (board)
  • Vertical shear of geostrophic wind has a special name _______________________
thermal wind equation
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
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?