Atmospheric blocking as a traffic jam in the jet stream

Atmospheric blocking due to anomalous, persistent meandering of the jet stream often causes weather extremes in the midlatitudes. Despite its ubiquity, the onset mechanism of blocking is not well understood. Here we demonstrate with meteorological data that there exists a close analogy between blocking and traffic congestion on a highway, and that they can be described by a common mathematical theory. The theory predicts that the jet stream has a capacity for the flux of wave activity (a meas…
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