1National Institute for Water and Atmospheric Research (NIWA), Greta Point Wellington, New Zealand
2University of Auckland, Dept. Physics, New Zealand
3National School of Surveying, University of Otago, Dunedin, New Zealand
4Callaghan Innovation, Gracefield Lower Hutt, New Zealand
Abstract. The Erebus Glacier Tongue, a small floating glacier in southern McMurdo Sound, is one of the best-studied ice tongues in Antarctica. Despite this, its calving on the 27 February 2013 (UTC) was around 10 yr earlier than previously predicted. The calving was likely a result of ocean currents and the absence of fast ice. The subsequent trajectory of the newly created iceberg supports previous descriptions of the surface ocean circulation in southern McMurdo Sound.