Document Type

Conference Proceeding

Publication Title

Annals of Glaciology

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Abstract/ Summary

An annually dated ice core recovered from South Pole (2850 in a.s.l.) in 1995, that covers the period 1487-1992, was analyzed for the marine biogenic sulfur species methanesulfonate (MS). Empirical orthogonal function analysis is used to calibrate the high-resolution MS series with associated environmental series for the period of overlap (1973-92). Utilizing this calibration we present a similar to500 year long proxy record of the polar expression of the El Nino-Southern Oscillation (ENSO) and southeastern Pacific sea-ice extent variations. These records reveal short-term periods of increased (1800-50, 1900-40) and decreased sea-ice extent (1550-1610., 1660-1710, 1760-1800). In general, increased (decreased) sea-ice extent is associated with a higher (lower) frequency of El Nino events.

Citation/Publisher Attribution

Meyerson, EA, Mayewski, PA, Kreutz, KJ, Meeker, LD, Whitlow, SI, and Twickler, MS, 2002, The Polar Expression of ENSO and Sea-Ice Variability as Recorded in a South Pole Ice Core: Annals of Glaciology, Vol 35, v. 35, p. 430-436. Available on publisher's site at:

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© Copyright 2002 by the International Glaciological Society




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