Variability in El Niño frequency and intensity over the past 4000 years

化石珊瑚含有丰富的热带海洋过去气候变化档案，可以扩展有限的仪器数据，增加我们对气候敏感性的理解。 太平洋的厄尔尼诺变化对澳大利亚气候有着深远的影响，该项目将重建过去的变化，以便更好地预测未来的气候敏感性。 它侧重于圣诞岛，因为圣诞岛是在几个不同时间尺度上捕捉厄尔尼诺变化的最佳地点，并将导致更好地了解造成气候变化的大气和海洋因素。

Fossil corals contain a rich archive of past climate variability for tropical oceans which can extend the limited instrumental data and increase our understanding of climate sensitivity. El Niño variations in the Pacific have far-reaching impacts on Australian climate, and this project will reconstruct variations in the past in order to better forecast climate sensitivity in the future. It focuses on Christmas Island which is the optimal site to capture El Niño variability at several different time scales, and will lead to a better understanding of atmospheric and oceanic factors that have caused climate variability.