The life cycle of cyclones as theorized by J. Bjerknes in:
"Life Cycle of Cyclones and the Polar Front Theory of Atmospheric Circulation,"
p. 5, Geofysiske Publikationer, Vol III, No. 1, 1922.
Image ID: wea01902, NOAA's National Weather Service (NWS) Collection
Category: Monsters/Winter Storms/Diagram/
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