Clinogenesis and frontogenesis in jet-stream waves. Part II: channel model numerical experiments.

Abstract

Frontogenesis (FG) is examined in a 'channel model' based on a primitive-equation isentropic formulation by Eliassen and Raustein. Meridional temperature gradients, static stability and a tropopause are specified to give a jet stream with realistic shears. An imposed weak cyclone-anticyclone couplet initiates 'self-development', of surface vortices and an upper-level wave, which is fastest with weaker static stability or with a more concentrated jet stream. -from Authors