DOI: https://doi.org/10.5069/G96M351N
OT Collection ID: OT.042021.6340.1
OT Collection Name: Illilouette Creek Basin Lidar Survey, Yosemite Valley, CA 2018
Short Name: CA18_Thompson
Collection Platform: Airborne Lidar

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Download and Access Products: 
	1. Point Cloud Data
		opentopoID: OTLAS.042021.6340.1
		Data Processing: https://portal.opentopography.org/lidarDataset?opentopoID=OTLAS.042021.6340.1

	2. Raster
		opentopoID: OTSDEM.042021.6340.1
		Data Processing: https://portal.opentopography.org/raster?opentopoID=OTSDEM.042021.6340.1


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Collection Overview: This lidar dataset was collected by NCALM for Sally Thompson at the  University of California, Berkeley.  This study aims to assess the occurrence and characteristics of post-fire erosion gullies caused by the Empire Fire in Illilouette Creek Basin, California.  The study area covers approximately 74 km2 in Yosemite National Park, 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-1830734.

Dataset Citation: Thompson, S. (2021). Illilouette Creek Basin Lidar Survey, Yosemite Valley, CA 2018. National Center for Airborne Laser Mapping (NCALM). Distributed by OpenTopography. https://doi.org/10.5069/G96M351N.. Accessed: 2024-11-22

Use License: CC BY 4.0

Dataset Keywords: lidar, yosemite, california, wildfire, post-fire, erosion

Survey Date: 09/21/2018 - 09/23/2018
Publication Date: 04/13/2021

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Data Provider and Roles:
	1.  University of California, Berkeley
	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: 1,586,845,171 pts

Area: 75.68 km^2

Point Density: 20.97 pts/m^2

Classifications: 
	Class 0 - Never classified: 41,421,825
	Class 1 - Unclassified: 395,184,231
	Class 2 - Ground: 229,696,464
	Class 3 - Low Vegetation: 459,167,252
	Class 4 - Medium Vegetation: 116,240,307
	Class 5 - High Vegetation: 340,981,637
	Class 18 - High Noise: 4,153,455
Coordinates System: 
	Horizontal: NAD83 (2011) / UTM Zone 11N Meters [EPSG: 6340]
	Vertical: Ellipsoid

Survey Report: https://object.cloud.sdsc.edu:443/v1/AUTH_opentopography/www/metadata/CA18_Thompson_metadata.pdf

LAS Validation Data Report: https://portal.opentopography.org/lasReport?opentopoID=OTLAS.042021.6340.1

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Dataset Extent in KMZ format: https://portal.opentopography.org/getKml?otCollectionID=OT.042021.6340.1&download=true

Dataset Spatial Bounds:
	North: 37.7242495636989°
	South: 37.6220224169966°
	East: -119.51415868638°
	West: -119.631897827315°