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Investigation Of The Links Between El Nino-Southern ˜ Oscillation And The ‘4.2ka Event’ Megadrought, Patrick Philip Wilcox
Investigation Of The Links Between El Nino-Southern ˜ Oscillation And The ‘4.2ka Event’ Megadrought, Patrick Philip Wilcox
Science, Medicine & Health - Honours Theses
The 6-3 kyr BP time period is characterised by enhanced precessional forcing and an abrupt global climate event known as the ‘4.2ka event’ megadrought and is a key study period for characterising the sensitivity of El Nino-Southern Oscillation (ENSO) ˜ to external forcing. Recent studies have suggested ENSO as a possible driver of the ‘4.2ka event’ megadrought. This thesis aims to develop a deeper understanding of ENSO in the mid-Holocene and investigate possible links between ENSO and the ‘4.2ka event’. A Sr/Ca-SST record was generated from XM35, a fossil coral from Kiritimati Island in the equatorial central Pacific that lived …