DOI: https://doi.org/10.5069/G9RX9997
OT Collection ID: OT.122025.6340.1
OT Collection Name: Quantifying Sediment Mobilization by Wildfire, CA 2025
Short Name: CA25_Lamb
Collection Platform: Airborne Lidar

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Download and Access Products: 
	1. Point Cloud Data
		opentopoID: OTLAS.122025.6340.1
		Data Processing: https://portal.opentopography.org/lidarDataset?opentopoID=OTLAS.122025.6340.1

	2. Raster
		opentopoID: OTSDEM.122025.6340.1
		Data Processing: https://portal.opentopography.org/raster?opentopoID=OTSDEM.122025.6340.1


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Collection Overview: This lidar dataset was collected by NCALM as part of the NCALM NOW project for Michael Lamb at the California Institute of Technology.  Collection of this dataset will help quantify dry-ravel sediment mobilization from the Eaton Fire in Los Angeles, CA  for improved debris-flow predictions.
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: Lamb, M. (2025). Quantifying Sediment Mobilization by Wildfire, CA 2025. National Center for Airborne Laser Mapping (NCALM). Distributed by OpenTopography. https://doi.org/10.5069/G9RX9997. Accessed 2025-12-16

Use License: CC BY 4.0

Dataset Keywords: lidar, airborne, fire, debris, hydrology, geomorphology, sediment

Survey Date: 02/20/2025 - 02/21/2025
Publication Date: 12/12/2025

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Data Provider and Roles:
	1. California Institute of Technology
	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: 2,733,439,821 pts

Area: 159.77 km^2

Point Density: 17.11 pts/m^2

Classifications: 
	Class 1 - Unclassified: 2,013,111,436
	Class 2 - Ground: 714,504,823
	Class 4 - Medium Vegetation: 2,562
	Class 7 - Low Point (low noise): 2,862,514
	Class 18 - High Noise: 2,958,486
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_Lamb_metadata.pdf

LAS Validation Data Report: https://portal.opentopography.org/lasReport?opentopoID=OTLAS.122025.6340.1

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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_Lamb.geojson
	Raster: https://raw.githubusercontent.com/OpenTopography/Data_Catalog_Spatial_Boundaries/main/OpenTopography_Raster/CA25_Lamb.geojson

Dataset Extent (Bounding Box):
	North: 34.26843694°
	South: 34.15188068°
	East: -117.99700401°
	West: -118.20835232°