Comparison of the Devils Hole and SPECMAP 18O time series. The linear correlation (r) between these records is -0.50; no phase adjustments have been made. Marine isotope substages are labeled in the figure. Standard deviation units computed over the full record. Following standard practice in the paleoclimatologic literature, the sign of the SPECMAP time series has been switched (note minus sign) so that interglaciations appear as peaks.
Source: Isaac J. Winograd et al., "Duration and Structure of the Past Four Interglaciations," Quaternary Research Vol. 48 (1997), pp. 141-154.
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Last modified by pib on October 28, 2003.