Fig. 3: The impacts of anthropogenic aerosol on tropical cyclone (TC) environmental fields.
From: Hemisphere-asymmetric tropical cyclones response to anthropogenic aerosol forcing
The left and right panels show the changes in the Northern Hemisphere TC season (July-October, JASO) and the Southern Hemisphere TC season (January−April, JFMA) between the modern period (1985–2014) and pre-Industrial period (1850–1879), respectively. a, b surface temperature (shaded, K) and sea level pressure (contour, Pa). The solid and dashed lines indicate the positive and negative values, respectively, with a contour interval of 20 Pa. The zero lines are bolded. c, d 850 hPa circulation (m s−1) and precipitation (shaded; mm month−1). e, f 200 hPa circulation (m s−1) and vertical wind shear (magnitude of wind difference between 850 hPa and 200 hPa, shading, m s−1). The purple boxes denote the Northern Hemisphere and Southern Hemisphere tropical cyclone formation zones.
