Dynamic Tropopause Maps:
Top left: Divergence
Top right: Total Deformation (Def)
Bottom left: Relative Vorticity (ζ)
Bottom right: Okubo-Weiss Parameter (W = Def2 – ζ2). W < 0: Vorticity dominates flow and For W > 0: Deformation dominates flow
All maps have 300-hPa geopotential height contoured.
The 1500 km range ring from Goose Bay.