Ying Zhang, SCSIO South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou, China, Yan DU, South China Sea Institute of Oceanology, Chinese Academy of Sciences, State Key Laboratory of Tropical Oceanography, Guangzhou, China, Ming Feng, CSIRO, Environment, Crawley, Western Australia, Australia and Alistair J Hobday, CSIRO Environment, Hobart, TAS, Australia