The influence of Hadley circulation intensity changes on extratropical climate in an idealized model

Experiments have been performed using a simple global model with idealized physics and zonally symmetrical forcings to investigate the influence of Hadley circulation intensity changes on extratropical climte. The heating within the Tropics is latitudinally concentrated, while the heating in the extratropics is kept unchanged. This leads to an increase in the intensity of the Hadley circulation. As found earlier by Hou, along with the increase in the intensity of the Hadley circulation, there is a statistically significant temperature increase in the winter high latitudes. -from Author