NV5, the world’s leading provider of geospatial software and services, today announced that lidar-derived data of the Palisades Fire and the Eaton Fire burn areas are now freely available to the public courtesy of the U.S. Geological Survey (USGS) at 2025 Post-Wildfire Lidar Data for Los Angeles, CA. The data is a .5 meter Digital Elevation Model (DEM) and Digital Surface Model (DSM). ALERTCalifornia sponsored the lidar data acquisition.
The provisional lidar data was collected January 21- January 22, 2025, and can be used to analyze the devastating fires’ impact and provide insights for damage assessment, which is critical for recovery and rebuilding efforts, as well as for better understanding potential hazards due to debris from the fire.
“The Palisades and Eaton fires not only devastated and tore apart the lives, homes, businesses and neighborhoods of thousands of Angelenos, they have also shown the world that cities, counties and jurisdictions across the globe can be hit with devastating fires in our warming world,” said Neal Driscoll, principal investigator at UC San Diego’s ALERTCalifornia. “We are pleased to provide the community with the lidar data as it is essential to developing effective and time-critical plans for wildfire prevention, protection, mitigation, response and recovery.”
The lidar data collected of the fire burn areas can measure changes in terrain, vegetation density, and burn severity by comparing it to precise 3D point clouds from previous lidar data collection by NV5 in 2023 and 2024 in support of the USGS’s 3D Elevation Program (3DEP) partnership with the Los Angeles Region Imagery Acquisition Consortium (LARIAC) Program . This analysis helps quantify fire damage, identify areas at risk of debris flows or flooding, and guide restoration efforts. Lidar can also detect remaining hazards like unstable trees, compromised structures and infrastructure, as well as supporting safe recovery operations.
NV5 acquired the new lidar data with a Riegl 1560II and Applanix IMU. The burn zones were flown at 16 points per square meter and will undergo additional processing to fully comply with USGS 3DEP Lidar Base Specification Standards.
“In our changing world, it's critical that the public, first responders, city, state, government planners, utilities, private companies, and builders have consistent, highly detailed information about the local geography to make sure they are armed with the information they need to make decisions,” said Kurt Allen, president, for NV5’s geospatial business unit. “We hope the release of this data will be an important step in the recovery of these communities.”
About USGS
The USGS provides science for a changing world. Learn more at https://www.usgs.gov or follow us on Facebook @USGeologicalSurvey, YouTube @USGS, Instagram @USGS, or X (formerly Twitter) at @USGS.
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