Michael Hemming^1,2, Moninya Roughan³, Amandine Schaeffer⁴, Tim Austin⁵ and Stuart Milburn⁵, (1)University of New South Wales, Sydney, NSW, Australia, (2)The University of New South Wales, Coastal and Regional Oceanography Lab, School of Maths & Statistics, Sydney, NSW, Australia, (3)New Zealand Meteorological Service (MetService), MetOcean Division, Auckland, New Zealand, (4)University of New South Wales, Coastal and Regional Oceanography Lab, School of Maths and Statistics, Sydney, NSW, Australia, (5)University of New South Wales, Coastal and Regional Oceanography Lab, School of Maths and Statistics, NSW, Australia