Digital terrain visualization and virtual globes for teaching geomorphology

Topographic maps, aerial and satellite imagery, relief maps, and stereoscopic anaglyphs have all been used to aid the understanding of the earth surface and geomorphic processes. Opportunities for incorporating new digital terrain data and virtual globes are reviewed and presented in a case study advanced university geomorphology course. The course uses physiographic divisions and provinces for the organization and intensive analysis of regional topography, landforms, and geographic variation of processes. Virtual globes' applications in lectures, student activities, and visual analysis are examined. Online tools for accessing terrain data and analyzing topographic profiles and imagery are also demonstrated. Virtual globes and online digital terrain databases are rapidly maturing technologies that are immediately accessible and provide a range of instructional technology uses. Examples and feedback from initial course delivery identified logistical constraints and future opportunities for these geospatial tools in geography education.