DOI: https://doi.org/10.5069/G9M32T07
OT Collection ID: OT.032023.26911.2
OT Collection Name: USFS San Gabriel Mountain Lidar, CA 2009
Short Name: CA09_SanGab
Collection Platform: Airborne Lidar

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Download and Access Products: 
	1. Point Cloud Data
		opentopoID: OTLAS.032023.26911.2
		Data Processing: https://portal.opentopography.org/lidarDataset?opentopoID=OTLAS.032023.26911.2

	2. Raster
		opentopoID: OTSDEM.032023.26911.2
		Data Processing: https://portal.opentopography.org/raster?opentopoID=OTSDEM.032023.26911.2


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Collection Overview: Lidar was collected over the San Gabriel mountains of California between May 30th - June 22nd 2009 for the USFS Pacific Region. Data was collected for multiple science objectives: earthquake hazards, flooding hazards, habitat mapping and fire science This dataset covers over 100,000 acres ( over 400 km2)
NOTE:This dataset is being presented as it was provided by the USFS. This original form of the dataset contains two issues that users should be aware of:
The pre-computed rasters do not extend to the entire extent of the lidar collection bounds.  Pre-computed rasters are focused on the central portions of the study area.
The point cloud classifications are not consistent throughout the dataset. This results in cases where a "ground-only" selection for a region (e.g. NW section of the dataset), may return "no data".  In these cases it is advised to  select all available classes, and do not filter by classification


Dataset Acknowledgement: Data were collected by the US Forest Service using public funds and can be freely used in the public domain

Dataset Citation: U.S. Forest Service Region 5 Remote Sensing Lab Information Management Staff. (2023). USFS San Gabriel Mountain Lidar, CA 2009. Collected by Dewberry. Distributed by OpenTopography. https://doi.org/10.5069/G9M32T07. Accessed: 2024-05-21

Use License: CC0 1.0

Dataset Keywords: BurnPro3D,California, fire, San Gabriel, ecology, topography, hydrology, wildlife,USFS

Survey Date: 05/30/2009 - 06/22/2009
Publication Date: 04/05/2023

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Data Provider and Roles:
	1. United States Forest Service
	Role: Contact
	Url: Not Available.

	2. Dewberry
	Role: Collector
	Url: http://www.dewberry.com/

	3. United States Forest Service
	Role: Funder
	Url: https://www.fs.usda.gov/


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Total number of points: 4,181,716,193 pts

Area: 405.39 km^2

Point Density: 10.32 pts/m^2

Classifications: 
	Class 1 - Unclassified: 3,597,209,049
	Class 2 - Ground: 568,501,317
	Class 7 - Low Point (low noise): 11,971,505
	Class 9 - Water: 4,034,322
Coordinates System: 
	Horizontal: NAD83 / UTM Zone 11N Meters [EPSG: 26911]
	Vertical: NAVD88 (GEOID 03) [EPSG: 5703]

Survey Report: https://object.cloud.sdsc.edu:443/v1/AUTH_opentopography/www/metadata/CA09_SanGab_metadata.zip

LAS Validation Data Report: https://portal.opentopography.org/lasReport?opentopoID=OTLAS.032023.26911.2

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Dataset Extent in KMZ format: https://portal.opentopography.org/getKml?otCollectionID=OT.032023.26911.2&download=true

Dataset Spatial Bounds:
	North: 34.27710258137159°
	South: 34.0567585704496°
	East: -117.73828459617611°
	West: -118.29601967309759°