The Army is required to spend a certain portion of their budget each year on repairing the environmental damage caused by training exercises. They contracted Dr. Paul Ayers to construct a model which estimates impact based on vehicle GPS data, and to evaluate the GPS system they intend to use. Using a GPS system and this model, the Army can spend its money more effectively.
I conducted GPS quality studies and prepared vehicle tacking data (usually large GPS data sets) for use in the model. Additionally, I was involved several trips to the field to collect vegetation and tire rut data.