I graduated from the University of Leeds in 1982 and completed a postgraduate Diploma in Cartography at the University College of Swansea in 1983. I then joined the staff at Portsmouth as Map Librarian and became Head of the Geographical Information Services Unit in 1987 before my appointment as lecturer in 1991. I was awarded my PhD in 1996 and was made Principal Lecturer in 1997.
My recent research has concentrated on the application of GIS to the study of landscape evolution with a specific focus on the analysis of historical landscape change in the Rother valley of West Sussex. I have particular interest in using archival material to reconstruct past landscape with a view to infroming policy on landscape restoration projects. I have published and presented several papers on the application of GIS to the study of agricultural productivity in the nineteenth century using a variety of modelling techniques. I am currently working on the tithe surveys of West Sussex in collaboration with West Sussex County Record Office, South Downs National Park and the National Trust.
I have also published works on the history of cartography in the twentieth century, particularly international mapping. I have contributed to the Exploratory Essays Initiative funded by the National Science Foundation of America on the history of cartography in the twentieth century. I was a major contributor to Volume VI of the History of Cartography edited by Mark Monmonier which was published by University of Chicago Press in May, 2015. I have also published papers with Prof. Michael Heffernan of Nottingham University on the globalisation of cartography during the 20th century.