Polar jet stream fluctuations in an energy balance model

Abstract We investigate the effect of increased longwave radiative forcing (a proxy for greenhouse gas concentration) on zonally averaged location eddy-driven jet stream in a latitude dependent, two-layer Energy Balance Model. The model includes separate terms atmospheric and surface albedos, takes into account reflections shortwave radiation between layers. introduce notion cloud factor function, which depends temperature gradients, to simulate jet. An increase initially results poleward movement stream’s mean latitude, but as increases, becomes quasi-periodic its moves equatorward.