Changes in Hadley circulation over the last millennium as implied by ...

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Research Questions:1) Does the modern coral δ 18 O record reflect regional climate variability?2) Can we splice fossil coral sequences together to generate longer records?Requires: i. accurate, precise dating of fossil coralsii. high reproducibility of fossil coral δ 18 O3) What is the natural range of CTP climate variability on interannual tocentennial timescales over the last millennium?4) What does this variability imply about changes in the Hadley circulation?
Palmyra coral vs. vs. NIÑO3.4 SST SST3322R=-0.66R=-0.66-0.6-0.6-0.4-0.4SSTSSTAnomolyAnomoly(°C)(°C)1100-1-1-0.2-0.20.00.00.20.2δ 18 δ 18 O(‰)O(‰)SSTSSTAnomolyAnomoly(°C)(°C)-2-21100-1-1-2-2NIÑO3.4NIÑO3.4SSTR=-0.84SSTR=-0.84PalmyraPalmyracoralcoral190019001920192019401940196019601980198020002000YearYear(A.D.)(A.D.)-0.3-0.3-0.2-0.2-0.1-0.10.00.00.10.10.20.20.30.3δ 18 δ 18 O(‰)O(‰)
Page 1 and 2: Changes in Hadley circulation over
Page 3 and 4: December 1997 SSTAnd Rainfall Anoma
Page 5: The Palmyra Coral CollectionModernM
Page 9 and 10: Research Questions:1) Does the mode
Page 11 and 12: Assessing thefidelity of fossilcora
Page 13 and 14: -5.6-5.4-5.217 17 th th Century Spl
Page 15 and 16: SB7 vs. CH9R=0.68SB5 vs. CH5R = 0.7
Page 17 and 18: Palmyra Coral Sequences3-coral spli
Page 19 and 20: Proxy-proxy comparison for forlast
Page 21: SummaryWe observe evidence of:1. EN

Changes in Hadley circulation over the last millennium as implied by ...

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