Peter has joint appointments as a senior principal research scientist with CSIRO Land and Water and as Professor in the School of Environment at Flinders University. He is a world-leading groundwater scientist who specialises in the areas of hydrology, ecohydrology, isotope hydrology and unsaturated zone flow.
His work is recognised globally and he was the National Ground Water Association Darcy Lecturer for 2009. This is one of the highest honours that can be given to a groundwater scientist and he is the first non-Northern American resident to be chosen for the role.
Peter was a member of the National Groundwater Committee between 2002 and 2007 and a member of the Victorian Government’s technical audit panel for water resources between 2002 and 2008.
In 2003, he was commissioned by the United States National Research Council to review the work of its Committee on Hydrologic Sciences on the interaction between groundwater and surface-water resources. During the mid-1990s, Peter was at the forefront of the development of chlorofluorocarbons as a groundwater dating tool.
Peter has written three books and has been the associate editor of leading international journals.