Response of the annual and zonal mean winds and temperatures to variations in the heat and momentum sources.

Abstract

As long as there is sufficient internal friction for a steady state to exist, the Hadley circulation mass flux does not respond strongly to changes in the strength of the horizontal eddy momentum flux forcing, but does respond strongly to changes in the distribution of the tropical thermal forcing. The response to varying the width but not the total precipitation of the intertropical convergence zone, with fixed eddy fluxes and extratropical heat sources, bears some resemblance to the observed zonally-averaged El Nino changes. Given fixed latent and eddy heat sources, the horizontal eddy momentum fluxes are varied. The minimum speed of the jet stream is found in the reference state.-from Author