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Abstract

Several large-scale climate patterns influenced climate conditions and weather patterns across the globe during 2010. The transition from a warm El Niño phase at the beginning of the year to a cool La Niña phase by July contributed to many notable events, ranging from record wetness across much of Australia to historically low Eastern Pacific basin and near-record high North Atlantic basin hurricane activity. The remaining five main hurricane basins experienced below- to well-below-normal tropical cyclone activity. The negative phase of the Arctic Oscillation was a major driver of Northern Hemisphere temperature patterns during 2009/10 winter and again in late 2010. It contributed to record snowfall and unusually low temperatures over much of northern Eurasia and parts of the United States, while bringing above-normal temperatures to the high northern latitudes. The February Arctic Oscillation Index value was the most negative since records began in 1950.

Publication Date

6-1-2011

Journal Title

Bulletin of the American Meteorological Society

Publisher

American Meteorological Society (AMS)

Digital Object Identifier (DOI)

https://dx.doi.org/10.1175/1520-0477-92.6.S1

Document Type

Article

Rights

This is an article published by American Meteorological Society in Bulletin of the American Meteorological Society in 2011, available online: https://dx.doi.org/10.1175/1520-0477-92.6.S1

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