Fig. 5: Precipitation anomalies associated with isotopic extremes at Nanjing.

Composite of accumulated precipitation over 2 days prior to δ18O observations (Pacc_2d; mm day-1) for a the ten highest and b the ten lowest Meiyu season δ18O cases at Nanjing. c The difference of Pacc_2d between low and high (low minus high) δ18O cases. Dotted areas in (c) indicate differences that do not pass the 90% significance level. The black star denotes the location of Nanjing. Black lines depict the Meiyu region boundaries. Maps created using Cartopy. Coastlines are from the Natural Earth public domain dataset. The Meiyu boundaries were processed in QGIS based on the Meiyu Monitoring Dataset.