摘要: Abstract Jet streams located on the dynamical tropopause are accompanied by coaligned bands of enhanced potential vorticity (PV) gradients, and these can serve as space–time evolving waveguides for synoptic larger-scale flow. Consideration is given to detection examination along-flow extent lateral confinement dynamic (i.e., iso-PV surface) tropopause-cutting isentropic surfaces. Thereafter a two-part study undertaken possible interaction between such jet streams). First, highly idealized theoretical model points nature linkage that exist perturbations waveguides. Second, diagnostic analysis two observed events helps identify contemporaneous evolution jets serves illustrate transfer wave activity from extratropical waveguide onto subtropical polar waveguide, respectively.
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