__Vorticity__

- Overview
- AMS definitions

2) Relative vorticity

3) Earth vorticity - this is just the Coriolis parameter!

4) Absolute vorticity

5) Prognostic vorticity equation

- Details
- Calculating vorticity
- Real-time plots: 1) Absolute vorticity, NCEP GFS website 2) Cyclonic vorticity, Tropical tidbits'website display of NAM model
- Prognostic vorticity equation. This fundamental equation is the basis for many global models, as it lends itself to the spectral method. Examples: 1) Indian global model; 2) Navy's NOGAP model; 3) ECMWF model. The GFS model uses this equation as well.
- Relationship between vertical motion and vorticity
- Real-time plots of vertical motion from UNISYS: 1) NAM model 2) GFS model

__Potential vorticity (PV)__

- Barotropic PV
- Interpreting PV
- General definition of PV
- UNCA notes on PV and mountain flow examples.
- Cross-sections of PV

__Useful lecture notes on vorticity from other universities__

__Recorded lectures__