Palaeoclimatic interpretation of high-resolution oxygen isotope profiles derived from annually laminated speleothems from Southern Oman

Western Indian Ocean marine and terrestrial records of climate variability: a review and new concepts on land–ocean interactions since AD 1660

“…Tree rings, lake sediment records and laminated stalagmites provide annually resolved proxy data for surface temperature and/or precipitation over the African-Asian landmass for several centuries (Fig. 1b;Holmgren et al 1999;Tyson et al 2002;Verschuren et al 2000;Verschuren 2004;Burns et al 2002;Cook et al 2003;Deser et al 2004;Fleitmann et al 2004;D'Arrigo et al 2005D'Arrigo et al , 2006Therell et al 2006 and references therein). Geochemical parameters in massive coral skeletons from the Indian Ocean are well established in providing monthly to annually resolved time series of changes in SST, salinity and precipitation in the shallow oceans for up to 350 years (Fig.…”

Changes in extreme wet events in Southwestern China in 1960–2011

“…However, the trends of extreme wet events among the stations over the SC are unremarkable in the 2000s compared with the other decades (Fig. 4), which can likewise be attributed to the weak southwest monsoon (Fleitmann et al, 2004;He et al, 2005;Yang et al, 2007). During the summer and winter monsoon period (Fig.…”

“…These changes are abnormal, and can be attributed to the weakening of the Asian monsoon circulation (Li et al, 2012) and climate change (Trenberth et al, 2003;Groisman et al, 2005). In addition, many studies have demonstrated that the strength of the southwest monsoon has gradually weakened for nearly half a century in China (Fleitmann et al, 2004;He et al, 2005;Yang et al, 2007), which can further explain the results.…”

High-precision 238U–234U–230Th disequilibrium dating of the recent past: a review

“…Although speleothems have proven a valuable source of information on past climates, it is only in the last few years that the UTh dating of last millennial speleothems for climatic reconstruction has been undertaken (Fleitmann et al, 2004;Yuan et al, 2004;He et al, 2005;Wang et al, 2005;Asmerom et al, 2007;Sinha et al, 2007;Hu et al, 2008;Lorrey et al, 2008). This is largely because of the low U content and high Th/U ratios of speleothems, particularly by comparison with pristine corals.…”

“…TIMS and single-collector HR-ICPMS have been commonly used for dating young carbonates (Edwards et al, 1988;Denniston et al, 2000;Cobb et al, 2003a,b;Fleitmann et al, 2004;Yuan et al, 2004;He et al, 2005;Kirch and Sharp, 2005;Wang et al, 2005;Weisler et al, 2006;Yu et al, 2006a,b;Lorrey et al, 2008;Shen et al, 2008) while MC-ICPMS has only occasionally been used to date young corals (Fietzke et al, 2005;Burgess et al, 2006;Hu et al, 2008;McCulloch and Mortimer, 2008). This is largely due to the fact that the MC-ICPMS technique became available only recently and that the protocols for dating extremely young carbonates are still being developed.…”