Seasonal sensitivity of the eddy-driven jet to tropospheric heating in an idealized atmospheric general circulation model
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A dry dynamical core is used to investigate the seasonal sensitivity of the circulation to two idealized thermal forcings–a tropical upper tropospheric forcing, and a polar lower tropospheric forcing. The circulation is modified using a set of perpetual simulations to simulate each month of the year, while the thermal forcings are held constant. The circu- lation responses to tropical warming and polar warming are studied separately, and then the response to the simultaneously applied forcings is analyzed. Finally, the seasonality of the internal variability of the circulation is explored as a ...