Fig. 6: Approximately 500 y-cycle of extreme hydroclimate events.

Power spectrum analysis of lake level changes at Lake XMLT from the South Asian monsoon region (blue lines, this study) and IRMsoft-flux of Hesang Cave from the East Asian monsoon region (orange lines)²¹. Dashed lines have a 95% confidence level (CL). Only the ~500-y peak exceeds 95% confidence.