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Geophysical Research Letters

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Abstract/ Summary

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 Nino 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.

Citation/Publisher Attribution

Bertler, NAN, Barrett, PJ, Mayewski, PA, Fogt, RL, Kreutz, KJ, and Shulmeister, J, 2004, El Nino Suppresses Aantarctic Warming: Geophysical Research Letters, v. 31, L15207. To view the published open abstract, go to and enter the DOI.

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© Copyright 2004 American Geophysical Union




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