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Importance of late fall ENSO teleconnection in the Euro-Atlantic sector

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Recent studies have indicated the importance of fall climate forcings and teleconnections in influencing the climate of the northern mid-to-high latitudes. Here, we present some exploratory analyses using observational data and seasonal hindcasts, with the aim of highlighting the potential of the El Niño-Southern Oscillation (ENSO) as a driver of climate variability during boreal late fall/early winter (November/December) in the North Atlantic-European sector and motivating further research on this relatively unexplored topic. The atmospheric ENSO teleconnection in November/December is reminiscent of the East Atlantic pattern and distinct from the well-known arching extratropical Rossby wavetrain found from January to March. Temperature and precipitation over Europe in November are positively correlated with the Niño3.4 index, which suggests a potentially important ENSO climate impact during late fall. In particular, the ENSO-related temperature anomaly extends over a much larger area than during the subsequent winter month

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Bulletin of the American Meteorological Society, 2018, vol. 99, num. 7, p. 1337-1343

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(c) American Meteorological Society, 2018

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Articles publicats en revistes (Física Aplicada)

# metadata.dc.title[].value
Importance of late fall ENSO teleconnection in the Euro-Atlantic sector