The Antarctic Slope Front along East Antarctica in the austral summer of 2006.

BROKE-West, a second East Antarctic Baseline Regional Oceanography Krill and Environment survey, was conducted January 10th - February 25th 2006 west of the Princess Elizabeth Trough in the Weddell-Enderby Basin. This survey comprised 11 meridional hydrographic transects from 62° S to the Antarctic coastal shelf. A ship-borne Acoustic Doppler Current Profile (ADCP) instrument and CTD- mounted Lowered ADCP were employed to measure surface and full-depth velocity profiles of the region. The spatial variability in the properties of the Antarctic shelf and continental slope water masses are described. The position and properties of the Southern Antarctic Circumpolar Current Front (sACCf), Southern Boundary (SB) and Antarctic Slope Front (ASF), are identified and compared with environmental (winds, sea-ice) and biological datasets (primary productivity, krill abundance). The ASF and the strong westward coastal jet associated with it are critical to the physical-biological interactions of both shelf and oceanic ecosystems, driving mixing, the northward transport of Tmin water, and the southward transport of the MCDW.