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Multimedia Gallery - Visualization

Precision Topography

Precise laser measurements known as LiDAR are one of the hottest tools in the Geosciences for studying the earth's surface, generating digital elevation models many times more accurate than before. These images of the Northern San Andreas Fault near Fort Ross, California were produced using tools and workflow developed in the GEON "Cyberinfrastructure for the Geosciences" project, using data-oriented computing resources at the San Diego Supercomputer Center at UC San Diego. The images show both full land cover as well as the "bare earth" information needed by geoscientists, revealed by a "virtual deforestation" algorithm. Red lines show traces of the 1906 San Francisco earthquake. Note offset in drainage (center) due to cumulative motion along the earthquake fault.
Image courtesy of J. R. Arrowsmith, C. Crosby, J. Conner Arizona State U./GEON; E. Frank, A. Memon, V. Nandigam, SDSC/UCSD
Source: San Diego Supercomputer Center, UC San Diego

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