The unusual cold might have been driven at least partly by the Arctic Oscillation (AO).

这不寻常寒冷的一部分原因可能由于是北极涛动(AO)。

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An analysis of the relationships between the North Atlantic Oscillation(NAO), Arctic Oscillation(AO) and river runoff throughout Xinjiang region of China was presented.

分析了冬季北大西洋涛动（NAO）和北极涛动（AO）与新疆天山南北不同流域河川径流变化的关系。

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Using the NCEP/NCAR reanalysis monthly data of SLP, the seasonal difference of Arctic Oscillation(AO) is studied with the emphasis on the temporal and spatial features of the summer AO.

运用NCEP/NCAR SLP再分析月资料，分析研究了北极涛动的季节性差异，着重讨论了夏季北极涛动的时空特征。

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This pole-centred roundel of warm-in-cold is symptomatic of what climatologists call the negative phase of the Arctic oscillation (AO).

ECONOMIST: Britain��s cold snap is explained by the Arctic oscillation