El Niño suppresses Antarctic warming

Details El Niño suppresses Antarctic warming El Niño suppresses Antarctic warming

Aug 2004

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004georl..3115207b&link_type=abstract

Geophysical Research Letters, Volume 31, Issue 15, CiteID L15207

Physics

10

Meteorology And Atmospheric Dynamics: Paleoclimatology, Meteorology And Atmospheric Dynamics: Polar Meteorology, Meteorology And Atmospheric Dynamics: Tropical Meteorology, Oceanography: General: Climate And Interannual Variability (3309), Oceanography: Physical: El Nino

Scientific paper

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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