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30-m Topographic Shape Index (McNabb-Bolstad)

Published by National Park Service | Department of the Interior | Catalog Last Checked: January 17, 2026 at 11:46 AM | Dataset Last Updated: March 17, 2014 at 12:00 AM
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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