Fig. 4: Relationship between climatological zonal wind and TIL across CMIP6 models.
From: Potential impact of tropopause sharpness on the structure and strength of the general circulation
Figure shows a correlation (in shading) of 1850–2014 climatological JFM-mean zonal mean zonal wind (u) with squared buoyancy frequency anomaly (\({N}_{\max }^{2}\), from Fig. 2) across different CMIP6 models. Black contours (contour interval is 10 m s−1, i.e., ... −10, 0, 10, ...) show multi-model-mean climatological JFM-mean zonal mean zonal wind over the same period. Stippling is the same as in Fig. 3. Note that the two models (MIROC6, IITM-ESM) with extremely strong tropopause sharpness were excluded (see outliers in Fig. 2b, and Supplementary Fig. 2) to avoid over-estimations. Note also that corresponding regression coefficients are provided in Supplementary Fig. 6.
