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Abstract
An annually dated ice core recovered from South Pole (2850 m 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 ~500 year long proxy record of the polar expression of the El Niño–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 Niño events.
Department
Earth Systems Research Center
Publication Date
1-1-2002
Journal Title
Annals of Glaciology
Publisher
Cambridge University Press
Digital Object Identifier (DOI)
Document Type
Article
Recommended Citation
Meyerson, E. A., Mayewski, P. A., Kreutz, K. J., David Meeker, L., Whitlow, S. I., & Twickler, M. S. (2002). The polar expression of ENSO and sea-ice variability as recorded in a South Pole ice core. Annals of Glaciology, 35, 430-436. doi:10.3189/172756402781817149
Rights
© the Author(s) 2002.
Comments
This is an article published by Cambridge University Press. https://dx.doi.org/10.3189/172756402781817149