Christopher C Chapman, CSIRO Oceans and Atmosphere, Hobart, TAS, Australia, Bernadette Sloyan, Commonwealth Scientific and Industrial Research Organisation (CSIRO), Hobart, TAS, Australia, Amandine Schaeffer, University of New South Wales, School of Mathematics and Statistics, Sydney, NSW, Australia, Iain Suthers, University of New South Wales, Sydney, Australia and Kylie Pitt, Griffith University, Gold Coast, Australia