Dr. Campbell has pursued a career in Geography, Remote Sensing, and Spatial Analysis through teaching, research, and community outreach projects. His recent interests have focused on analysis of sequential imagery to examine changes in agricultural landscapes with respect to cropping and tillage systems, and of geospatial analysis of relationships between environmental and social dimensions of urban systems. His teaching has focused upon remote sensing, geomorphology, and spatial data analysis. Dr. Campbell is author of a leading remote sensing text, now in its 5th edition (with R.H. Wynne) (with a 6th edition in preparation). He is author of numerous refereed journal articles.