After completing his undergraduate studies in Mathematics and Engineering in Paris and Hanover, Dr Onof undertook his PhD research at Imperial, becoming a member of staff in 1992.  His main area of current research is in the stochastic modelling of rainfall fields for the purpose of hydrological simulation and flood design. Additionally he is interested in the impact of climate change upon hydrological variables.

Dr Onof has supervised several PhD students and in 1997 was responsible for starting a new lecture course in Stochastic Hydrology to bring new time-series modelling methods to MSc students.  He lectures in over a dozen undergraduate papers, and also teaches a course at the ENPC Paris, part of the European Athens Network. His teaching focuses upon Systems Engineering and Mathematical Modelling techniques. Dr Onof has been active in promoting student exchange programmes between Imperial and other universities in Europe, and been instrumental in setting up new exchanges with Melbourne, Hong Kong and California.