Figure 4. Summer precipitation changes (in mm/day) in sensitivity experiments (refer to Table S4 for detailed information).

The results show the weakening of the EASM at 8.5 ka in northern China when considering glacial boundary conditions (a). The weakened EASM at 8.5 ka was weaker than at 6 ka (b) but stronger than the present (c). Blue dot indicates the location of Gonghai Lake. Dotted areas indicate changes which are significant at the 95% confidence level.