Fig. 5: Simplified model of Hadley circulation in the Northern and Southern Hemisphere during the middle Miocene (ca. 15 Ma) and late Miocene (ca. 7–8 Ma).
From: Global climate forcing on late Miocene establishment of the Pampean aeolian system in South America
Schematic distribution of lakes (light blue polygons), aeolian systems (light yellow polygons); and loessoid deposits (brown polygons). A Weak Hadley circulation extending into the East Asian continental interior; diffuse extended penetration of East Asian Summer Monsoon (EASM) precipitation94,95. B Weak Hadley circulation extends south past the Pampas region. C Intensification and contraction of Hadley circulation, enhanced drying of the Asian continental interior70, incursion of the East Asia Winter Monsoon EAWM;96, and intensification and diminished penetration of the East Asian Summer Monsoon97. D Intensification and contraction of Hadley circulation48 and establishment of the Pampas aeolian system. SALLJ, South American Low-Level Jet. The base images are from Google Earth Pro using Landsat: Copernicus.
