Last interglacial and early glacial ENSO

George J. Kukla, Amy C. Clement, Mark A. Cane, Joyce E. Gavin, Stephen E. Zebiak

Research output: Contribution to journalArticle

28 Scopus citations

Abstract

Although the link between insolation and climate is commonly thought to be in the high northern latitudes in summer, our results show that the start of the last glaciation in marine isotope stage (MIS) 5d was associated with a change of insolation during the transitional seasons in the low latitudes. A simplified coupled ocean-atmosphere model shows that changes in the seasonal cycle of insolation could have altered El Niño Southern Oscillation (ENSO) variability so that there were almost twice as many warm ENSO events in the early glacial than in the last interglacial. This indicates that ice buildup in the cooled high latitudes could have been accelerated by a warmed tropical Pacific.

Original languageEnglish (US)
Pages (from-to)27-31
Number of pages5
JournalQuaternary Research
Volume58
Issue number1
DOIs
StatePublished - Jul 2002

Keywords

  • ENSO
  • Equatorial Pacific
  • Glacial start
  • Insolation

ASJC Scopus subject areas

  • Arts and Humanities (miscellaneous)
  • Earth-Surface Processes
  • Earth and Planetary Sciences(all)

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  • Cite this

    Kukla, G. J., Clement, A. C., Cane, M. A., Gavin, J. E., & Zebiak, S. E. (2002). Last interglacial and early glacial ENSO. Quaternary Research, 58(1), 27-31. https://doi.org/10.1006/qres.2002.2327