I work on the analysis of ice cores collected from Antarctica.
Ice cores provide proxy climate data reaching back many tens of thousands of years.
My particular interests are in the study of the atmospheric peroxide signal which is archived within the ice and also the temperature record which comes from the study of stable isotopes . I also have an interest in other paleoclimate signals in the ice cores, including past accumulation levels, volcanic signals, dust levels and cosmogenic isotopes. After teaching secondary science and maths for a while, I returned to study at the University of Tasmania where I completed my Ph.D. in astrophysics in 1992. My thesis involved high time-resolution study of polarization in radio signals from pulsars. From 1992 to 1994 I was employed as a postdoctoral fellow at the Jet Propulsion Laboratory in Pasadena where I was principally involved in Very Long Baseline Interferometric studies of extragalactic radio sources.