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Greetings! The relationship between `absolute_vorticity` and `vorticity` in MetPy is `absolute_vorticity` = f + `vorticity` `vorticity` calculates the vertical vorticity and represents the combination of curvature and shear terms. The equation would be: dv/dx - du/dy I'll go ahead and add that equation to our docs to make that clearer for everyone. Cheers! Ryan > Unidata Support, > > I have a quick question. There are multiple vorticity functions in MetPy, > two of which are absolute vorticity and vorticity. I understand absolute > vorticity but don't know exactly what vorticity is since I can't see the > associated equation. Is this curvature or shear or something else? Ticket Details =================== Ticket ID: NTL-121569 Department: Support Python Priority: Low Status: Closed =================== NOTE: All email exchanges with Unidata User Support are recorded in the Unidata inquiry tracking system and then made publicly available through the web. If you do not want to have your interactions made available in this way, you must let us know in each email you send to us.