Ian Simmonds is Professor of Atmospheric and Oceanic Sciences at The University of Melbourne, Australia, and has held posts with the Atmospheric Environment Service (Canada) and the Geophysical Fluid Dynamics Laboratory at Princeton University (USA). He has a broad range of interests including meteorology, climatology, oceanography, climate variability and change, palaeoclimate, and land–atmosphere processes. In addition, he has made significant contributions to the fields of air–sea interaction, data analysis, modelling of geophysical systems, behaviour and influence of Antarctic sea ice, global balances and transport of carbon dioxide and methane, circulation of the Antarctic atmosphere, and urban climates. He has published over 130 scientific articles in the fully-refereed international literature, and was awarded the inaugural Australian Meteorological and Oceanographic Society Medal (2000). He has served on many national and international scientific committees related to his areas of expertise.