In this work, the dynamics of the Antarctic Circumpolar Currrent (ACC) are investigated on the basis of near-surface Lagrangian observations carried out under the framework of the World Ocean Circulation Experiment (WOCE) and contained within the WOCE drifter data set. Approximately 440 drifters that were deployed in the Southern Ocean, between 1995 and 2002, were considered during the study. The mean surface current field was derived using natural bicubic splines, whose application yielded a high-resolution mean flow which allowed a detailed description for ACC meridional shear as well as its jets. ACC volume transport was estimated using a novel approach that was based upon the surface transport that was computed on the basis of drifter data and by assuming an exponential form for vertical current shear.