The Influences of the Model Configuration on the Simulation of Stratospheric Northern-Hemisphere Polar Vortex in the CMIP5 Models

Figure 2

The 30-year climatology (left panel) and discrepancies between each ensemble’s (right panel) boreal winter (DJF) zonal-mean temperatures (shadings, unit: K) and zonal-mean zonal winds (contours, unit: m s⁻¹). The contour intervals of the left and right panels are 5 m s⁻¹ and 1 m s⁻¹, respectively.