The detailed structure of the atmosphere near jet streams

Abstract

A short survey is given of results obtained from «Project Jet Stream» Research Flights. Several features of the atmospheric structure in the vicinity of the jet-stream core seem to be rather characteristic and shall be described in detail. The most prominent among these are: the «Jet-Stream Front»above and below the jet core, stable baroclinic zones on the anticyclonic side of the jet, and an upward bulge of the isentropic surfaces south of the jet stream, the so-called «isentrope hump». Some of theses features seem to have far-reaching implications upon the dynamics of the jet stream.