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30-m Topographic Shape Index (McNabb-Bolstad)

Published by National Park Service | Department of the Interior | Metadata Last Checked: January 17, 2026 | Last Modified: 2014-03-17T00:00:00Z
The lidar Topographic Shape Index (TSI) is the TSI data product produced and distributed by the National Park Service, Great Smoky Mountains National Park. Concave, low gradient areas will gather water (low TSI values), whereas steep, convex areas will shed water (high TSI values).

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