Hydrological variations in central China over the past millennium and their links to the tropical Pacific and North Atlantic oceans

摘要: Abstract. Variations of precipitation, also called the Meiyu rain, in East Asian summer monsoon (EASM) domain during last millennium could help enlighten the hydrological response to future global warming. Here we present a precisely dated and highly resolved stalagmite δ18O record from the Yongxing Cave, central China. Our new record, combined with a previously published one from same cave, indicates that rain has changed dramatically association temperature change. In particular, our shows was weakened during the Medieval Climate Anomaly (MCA) but intensified Little Ice Age (LIA). During Current Warm Period (CWP), a similar weakening rain. Furthermore, MCA CWP, our records show atmospheric precipitation is similarly wet in northern China dry China, relatively CWP southern This spatial discrepancy complicated localized regional anthropogenic forcing. The (intensified) (LIA) matches well warm (cold) phases Northern Hemisphere surface air temperature. pattern corresponds well climatic conditions over tropical Indo-Pacific pool. On other hand, our record strong North Atlantic climate as well. The reduced (increased) correlates positive (negative) phases Oscillation. In addition, links well to (weak) meridional overturning circulation period. All abovementioned localized correspondences and remote teleconnections on decadal centennial timescales indicate the Meiyu coupled closely oceanic processes Pacific and oceans LIA.