This course provides a practical introduction to the use of geographic information systems and spatial modelling using digital geographic data to support decision making. The practical exercises take the form of an Environmental Impact Study of a small coastal catchment. On the satisfactory completion of the course, students will have built spatial models of hydrology, erosion, conservation, wildlife habitat, forest, agriculture, fire and economy, and integrated these components within the geographic information system. Lectures will develop a solid understanding of the principles involved in the practical work.