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We used the NCEP/NCAR re-analysis monthly mean surface wind data from 1979 to 2010 to describe the first two patterns of Arctic surface wind variability by means of the complex vector empirical orthogonal function (CVEOF)analysis.The first two patterns respectively account for 31% and 16% of its total anomalous kinetic energy.The leading pattern consists of the two sub-patterns: the northern Laptev Sea (NLS) pattern and the Arctic dipole (AD) pattern.The second pattern contains the northern Kara Sea (NKS) pattern and the central Arctic (CA) pattern.Over the past two decades,the combined dynamical forcing of the first two patterns has contributed to Arctic September sea ice extent minima and its declining trend.September sea ice extent minima are mainly associated with the negative phase of the AD pattern and the positive phase of the CA pattern during the summer (July to September) season,and both phases coherently show an anomalous anticyclone over the Arctic Ocean.Wind patterns affect September sea ice extent through their frequency and intensity.