DOI: https://doi.org/10.5069/G96T0JWB
OT Collection ID: OT.102026.6340.2
OT Collection Name: Change Detection Following the Palisades Fire, CA 2025
Short Name: CA25_West
Collection Platform: Airborne Lidar

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Download and Access Products: 
	1. Point Cloud Data
		opentopoID: OTLAS.102026.6340.2
		Data Processing: https://portal.opentopography.org/lidarDataset?opentopoID=OTLAS.102026.6340.2

	2. Raster
		opentopoID: OTSDEM.102026.6340.2
		Data Processing: https://portal.opentopography.org/raster?opentopoID=OTSDEM.102026.6340.2


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Collection Overview: This lidar dataset was collected by NCALM as part of the NCALM NOW project for Joshua West at the University of Southern California. Collection of this dataset will help assess change detection and test models for post-wildfire erosion following the Palisades Fire in the Santa Monica Mountains, California.    Publications associated with this dataset can be found at NCALM's Data Tracking Center

Dataset Acknowledgement: Lidar data acquisition and processing completed by the National Center for Airborne Laser Mapping (NCALM). NCALM funding provided by NSF's Division of Earth Sciences, Instrumentation and Facilities Program. EAR-2324629

Dataset Citation: West, A.J. (2026). Change Detection Following the Palisades Fire, CA 2025. National Center for Airborne Laser Mapping (NCALM). Distributed by OpenTopography. https://doi.org/10.5069/G96T0JWB. Accessed 2026-10-10

Use License: CC BY 4.0

Dataset Keywords: lidar, fire, geomorphology, california, change detection

Survey Date: 02/20/2025 - 02/21/2025
Publication Date: 10/09/2026

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Data Provider and Roles:
	1. University of Southern California
	Role: Principal Investigator
	Url: Not Available.

	2. National Center for Airborne Laser Mapping
	Role: Collector
	Url: https://ncalm.cive.uh.edu/

	3. National Science Foundation
	Role: Funder
	Url: https://nsf.gov/


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Total Number of Points: 2,388,583,116 pts

Area: 137.89 km^2

Point Density: 17.32 pts/m^2

Classifications: 
	Class 1 - Unclassified: 868,550,332
	Class 2 - Ground: 1,185,729,125
	Class 4 - Medium Vegetation: 119,149,669
	Class 7 - Low Point (low noise): 1,204,290
	Class 8 - Model Key/Reserved: 213,939,606
	Class 18 - High Noise: 10,094
Coordinates System: 
	Horizontal: NAD83 (2011) (EPOCH:2010) / UTM Zone 11N Meters [EPSG: 6340]
	Vertical: NAVD88 (GEOID 18) [EPSG: 5703]

Survey Report: https://object.cloud.sdsc.edu:443/v1/AUTH_opentopography/www/metadata/CA25_West_metadata.zip

LAS Validation Data Report: https://portal.opentopography.org/lasReport?opentopoID=OTLAS.102026.6340.2

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Dataset Boundary in GeoJSON Format: 
	Point Cloud: https://raw.githubusercontent.com/OpenTopography/Data_Catalog_Spatial_Boundaries/main/OpenTopography_Point_Cloud_Lidar/CA25_West.geojson
	Raster: https://raw.githubusercontent.com/OpenTopography/Data_Catalog_Spatial_Boundaries/main/OpenTopography_Raster/CA25_West.geojson

Dataset Extent (Bounding Box):
	North: 34.150814°
	South: 34.012196°
	East: -118.484059°
	West: -118.65842°