Fresh Look at Alaska’s Unique Terrain

Credit: Credit: AirSAR, the Alaska Synthetic Aperture Radar Facility, and JPL, Posted on: Tuesday, 2 September 2003, 06:00 CDT Download full size image

A NASA mission to study Alaska’s unique terrain is providing scientists with their first detailed look at the changing topography of one of Earth’s most active volcanic regions.

Researchers at the Alaska Synthetic Aperture Radar (SAR) Facility, Fairbanks, have created a high-resolution digital elevation model of Umnak Island, home to the Okmok Volcano. This model can be used to produce new, accurate geologic maps. The most recent topographic map of the region was made in 1957 from aerial photographs. Okmok has erupted four times since then, dramatically changing the landscape.

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