Quasi-geostrophic theory
Click the hyperlink by 📺to access the recorded lectures
QG is the key ingredient of synoptic analysis
Getting to know the mid-latitude atmospheric dynamics and why numerical weather prediction works.
📺 Introduction of the cyclone wave theory
📺 More on the quasi-geostrophic approximation
A recap of these subjects by Brad
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📺 Potential vorticity. A very useful quantity to measure the rotational intensity and it is conserved.
📺 And guess what -- Homework!
Compute relative vorticity from different scenarios.
A recap of these subjects by Brad and further explained by Simon
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📺 On why is the Q-G theory so powerful and the precursor of the tendency equation.
📺 The geopotential tendency equation - this shows why weather is predictable. See Part 2 of this lecture with term by term explanation.
A recap of these subjects by Abby and her homework
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📺 Physical meaning of vortex stretching - the key factor that causes "weather"
📺 The Omega equation - a diagnostic tool to identify vertical motion associated with a midlatitude cyclone
A recap of these subjects by Abby with Simon's explanation
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📺 The Q vector. An useful information to assist weather map interpretation.
A recap by Lydia with Simon
A recap by Brad with Simon
Atmospheric Oscillations - waves
📺 Linear perturbation theory. Fourier decomposition, with sin/cos function and exponential function.
📺 A review of these waves and different speeds.
📺 Other wave types: sound wave, gravity waves, etc.
A recap by Casey
A recap by Brad
📺 A special lecture on geostrophic adjustment 👍 with a historical narrative.
A recap by Casey
A recap of by Abby
A recap of Geostrophic Adjustment by Lydia (feat. Simon)
A review by Casey on topographic waves
Other important waves:
📺 The Kelvin wave (tropical dynamics)
A lecture of Rossby Wave by Lydia
A recap by Casey