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The Enigma of Saturn's North-Polar Hexagon


Mar 29, 2018 - 3:30pm


PS 111


Gerald Marsh
University of Chicago; Argonne National Laboratory


It has been suggested that the north-polar hexagon found on Saturn is an unusual Rossby wave. If this is to be the case, one must not only explain how a Rossby wave can be hexagonal in shape, albeit with curved corners, but also why it is hexagonal rather than in the form of some other polygon. It is possible that a spectrum of Rossby waves with different amplitudes resulting from the velocity profile of the hexagonal jet could contribute to its shape.

Event Type: 

Department of Physics - Colloquia