DOI: https://doi.org/10.5069/G9RX998S
OT Collection ID: OT.092022.6340.2
OT Collection Name: Topographic and Lithologic Controls on Subsurface Weathering, CA 2021
Short Name: CA21_Higa
Collection Platform: Airborne Lidar

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Download and Access Products: 
	1. Point Cloud Data
		opentopoID: OTLAS.092022.6340.2
		Data Processing: https://portal.opentopography.org/lidarDataset?opentopoID=OTLAS.092022.6340.2

	2. Raster
		opentopoID: OTSDEM.092022.6340.2
		Data Processing: https://portal.opentopography.org/raster?opentopoID=OTSDEM.092022.6340.2


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Collection Overview: This lidar dataset was collected as part of an NCALM Seed grant for Justin Higa at the University of California, Los Angeles. This dataset was collected to help analyze topographic and lithologic controls on subsurface weathering in the Sierra Nevada mountains. The study area is located north east  of Fresno, California and covers approximately 38 km2.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: Higa, J. (2022). Topographic and Lithologic Controls on Subsurface Weathering, CA 2021. National Center for Airborne Laser Mapping (NCALM). Distributed by OpenTopography. https://doi.org/10.5069/G9RX998S. Accessed: 2024-12-22

Use License: CC BY 4.0

Dataset Keywords: lidar, Sierra Nevada, geomorphology, weathering, topography 

Survey Date: 07/13/2021
Publication Date: 09/30/2022

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Data Provider and Roles:
	1. University of California, Los Angeles
	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: 344,427,665 pts

Area: 38.22 km^2

Point Density: 9.01 pts/m^2

Classifications: 
	Class 1 - Unclassified: 210,628,085
	Class 2 - Ground: 133,659,572
	Class 7 - Low Point (low noise): 140,008
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/CA21_Higa_metadata.pdf

LAS Validation Data Report: https://portal.opentopography.org/lasReport?opentopoID=OTLAS.092022.6340.2

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Dataset Extent in KMZ format: https://portal.opentopography.org/getKml?otCollectionID=OT.092022.6340.2&download=true

Dataset Spatial Bounds:
	North: 37.113585824452144°
	South: 37.04509895528269°
	East: -119.100055218373°
	West: -119.1660598197403°