Fig. 17
From: Review of the Early–Middle Pleistocene boundary and Marine Isotope Stage 19
A schematic representation of the northwest Pacific showing the north/south migration of the westerly jet in winter and associated shifts of the Subarctic Front. A weaker east Asian winter monsoon (EAWM) (a) causes the Subarctic Front to move northwards (interstadial conditions), and a stronger EAWM (b) deflects it southwards (stadials). The EAWM is controlled by the thermal contrast between the Siberian High and Aleutian Low atmospheric pressure systems: when both are intensified (b), the EAWM is strongest. Locations of sites discussed in the text are shown. Adapted from fig. 15 of Suganuma et al. (2018)