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Detailed Reference Information |
Toniazzo, T. and Scaife, A.A. (2006). The influence of ENSO on winter North Atlantic climate. Geophysical Research Letters 33: doi: 10.1029/2006GL027881. issn: 0094-8276. |
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Although the influence of the El Ni¿o - Southern Oscillation on the extra-tropical climate is well established for the Pacific basin and North American regions, there is no clear consensus as to whether there are reproducible effects from ENSO on the North Atlantic and West European regions. In this study we present a revised analysis of past El-Ni¿o teleconnections. By stratifying El-Ni¿o events according to amplitude, we find a highly non-linear yet robust response to ENSO that changes sign over the eastern North Atlantic as the amplitude of the El-Ni¿o anomaly increases. Results from a series of experiments with a general circulation model indicate that the response to strong ENSO events is reproducible given the sea-surface temperature anomalies in the tropical Pacific. The response to moderate El-Ni¿o events resembles the negative phase of the North Atlantic Oscillation as found in previous studies. |
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Abstract |
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Keywords
Global Change, Atmosphere (0315, 0325), Global Change, Climate dynamics (0429, 3309), Atmospheric Processes, Climate change and variability (1616, 1635, 3309, 4215, 4513) |
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Publisher
American Geophysical Union 2000 Florida Avenue N.W. Washington, D.C. 20009-1277 USA 1-202-462-6900 1-202-328-0566 service@agu.org |
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