ESS227
Prof. Jin-Yi Yu
Potential Vorticity
• We begin with the “circulation equation” (Bjerknes circulation theorem)
• We then make use of definitions of potential temperature (Θ) and vorticity (ζ)
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• We then make use of definitions of potential temperature (Θ) and vorticity (ζ)
( where Ae = A sinФ)
( where                          )