Climate

El Niño suppresses Antarctic warming

  1. Nancy A. N. Bertler1,2,
  2. Peter J. Barrett1,
  3. Paul A. Mayewski3,
  4. Ryan L. Fogt4,
  5. Karl J. Kreutz3,
  6. James Shulmeister5

Article first published online: 14 AUG 2004

DOI: 10.1029/2004GL020749

Issue

Geophysical Research Letters

Geophysical Research Letters

Additional Information

How to Cite

Bertler, N. A. N., P. J. Barrett, P. A. Mayewski, R. L. Fogt, K. J. Kreutz, and J. Shulmeister (2004), El Niño suppresses Antarctic warming, Geophys. Res. Lett., 31, L15207, doi:10.1029/2004GL020749.

Author Information

  1. 1

    Antarctic Research Centre, Victoria University, Wellington, New Zealand

  2. 2

    Institute of Geological and Nuclear Sciences, Lower Hutt, New Zealand

  3. 3

    Climate Change Institute, University of Maine, Edward T. Bryand Global Science Center, Orono, Maine, USA

  4. 4

    Byrd Polar Research Center, Ohio State University, Columbus, Ohio, USA

  5. 5

    Department of Geological Sciences, University of Canterbury, Christchurch, New Zealand

Publication History

  1. Issue published online: 14 AUG 2004
  2. Article first published online: 14 AUG 2004
  3. Manuscript Accepted: 12 JUL 2004
  4. Manuscript Received: 15 JUN 2004

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[1] Here we present new isotope records derived from snow samples from the McMurdo Dry Valleys, Antarctica and re-analysis data of the European Centre for Medium-Range Weather Forecasts (ERA-40) to explain the connection between the warming of the Pacific sector of the Southern Ocean [Jacka and Budd, 1998; Jacobs et al., 2002] and the current cooling of the terrestrial Ross Sea region [Doran et al., 2002a]. Our analysis confirms previous findings that the warming is linked to the El Niño Southern Oscillation (ENSO) [Kwok and Comiso, 2002a, 2002b; Carleton, 2003; Ribera and Mann, 2003; Turner, 2004], and provides new evidence that the terrestrial cooling is caused by a simultaneous ENSO driven change in atmospheric circulation, sourced in the Amundsen Sea and West Antarctica.

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