Fig. 7: Schematic diagram of the influence of the Asian monsoon, PDO, and AMO on the precipitation distribution patterns in East China.
From: Precipitation in eastern China over the past millennium varied with large-scale climate patterns
a A weak monsoon with positive PDO and negative AMO. During this period, the position of the West Pacific subtropic High (WPSH) was southward and Central China (HS) is controlled by Meiyu front with rich rainfall, while South China (DG) and North China (WX) with less rainfall, presenting as a tripole pattern (‘−/+/−’). b A strong monsoon with negative PDO and positive AMO. During this period, the position of the WPSH was northward, which covered Central China (HS) with less rainfall, while South China (DG) and North China (WX) were controlled by monsoon trough and Meiyu front with rich rainfall, presenting an anti-tropile rainfall pattern (‘+/−/+’). This diagram is drawn according to refs. 55,56.
