CSIRO debris-drift studies

CSIRO’s Oceans and Atmosphere group modelled how debris found from 2015 onward could have travelled from candidate 7th-arc latitudes to Réunion, Madagascar, Mozambique, Mauritius, Tanzania and South Africa. Results were used to down-weight some northern-arc latitudes (debris would have arrived too early on African coasts) and to support the ATSB’s later search box. Independent researchers have argued about windage (“drift versus sail”) and about whether the official 7th-arc origin requires extra speed. The debris field’s western-Indian-Ocean geography is not seriously in dispute; the fine latitude on the arc is.