Fig. 8: Linear trends of vertical zonal wind shear and tropospheric temperature as well as climatological mean vertical zonal wind shear over the Southern Hemisphere.
From: The southward shift of hurricane genesis over the northern Atlantic Ocean
a Climatological mean 850-hPa winds (vector, m s−1) and vertical zonal wind shear between 200 and 850 hPa (shaded, m s−1) during NDJFMA. The linear trend of NDJFMA b vertical zonal wind shear (m s−1 year−1) between 200 and 850 hPa and c 200–850-hPa averaged tropospheric temperature (K year−1) from 1979 to 2022 over the Southern Hemisphere. The blue boxes denote the southern Indian Ocean and southern Pacific Ocean. The areas marked with black dot denote statistically significant linear trend at the 95% confidence level.
