Abstract
Data from three years of pressure gauge measurements in the Drake Passage are interpreted in terms of fluctuations in transport of the Antarctic Circumpolar Current. The pressure data are compared with wind-stress data calculated from gridded southern hemisphere atmospheric-pressure data. Transport fluctuations with periods longer than 30 days are highly correlated with fluctuations in wind stress integrated over the Southern Ocean, with transport lagging wind by about nine days. The results are consistent with the rate at which momentum is supplied to the current system by wind stress.
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