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Lidar Elevation

Published by FEMA/Resilience/Risk Management Directorate | Department of Homeland Security | Catalog Last Checked: May 06, 2026 at 11:14 AM | Dataset Last Updated: July 01, 2024 at 07:47 AM
Light Detection and Ranging (lidar) is a technology used to create high-resolution models of ground elevation with a vertical accuracy of 10 centimeters (4 inches).  rnrnFEMA collects lidar elevation data to support flood mapping. USGS is the primary Federal steward of lidar data. FEMA archives lidar data for FEMA projects where USGS does not manage the Lidar data collection. rnrnDatapoints include ground elevation models and vertical metrics for ground elevation.

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