One year, 900 locations, thousands of coral reefs. Thats the tally of NASAs Landsat 7 satellite as it continues to deliver cutting edge images and information about the Earth.
The Digital Earth Workbench is an interactive application that runs on a SGI Onyx Infinite Reality system and is controlled by an Immersive Workbench, tracked stereo glasses, and a tracked wand. The application allows an unprecedented freedom to roam georeferenced datasets at multiple resolutions and timescales. This animation is one of a series of direct screen captures of the application in operation. The occasional menu appearance denotes direct intervention by the operator to add or delete data or to activate a new control option.
This BioBulletin Web site takes an in-depth look at coral reefs and how they are affected by human activities -- everything from agricultural pollution and ship grounding to snorkeling and overfishing. With Florida's fragile reefs as the backdrop, the site includes text, videos, photographs, and interviews with key scientists.
The structure and extent of coral reefs can now, for the first time, be monitored globally, thanks to new observations from NASAs Landsat 7 spacecraft. Detailed images of reefs from nearly 900 locations around the world have been collected in the first year of the Landsat 7 mission.
