DOI: https://doi.org/10.5069/G9GF0RFP
OT Collection ID: OT.042013.26911.1
OT Collection Name: Southern Sierra Nevada Critical Zone Observatory: Snow On
Short Name: SSCZO_Mar10
Collection Platform: Airborne Lidar

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Download and Access Products: 
	1. Point Cloud Data
		opentopoID: OTLAS.042013.26911.1
		Data Processing: https://portal.opentopography.org/lidarDataset?opentopoID=OTLAS.042013.26911.1

	2. Raster
		opentopoID: OTSDEM.042013.26911.1
		Data Processing: https://portal.opentopography.org/raster?opentopoID=OTSDEM.042013.26911.1


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Collection Overview: Southern Sierra CZO Lidar flight was acquired in 2010 and consists of 2 flights - Snow on and snow off. Each flight has 6 sub-areas defined as: Bull (Area 1), Courtwright Road (Area 2), Providence (Area 3), San Joaquin Range (Area 4), Soaproot Saddle (Area 5), and Wolverton (Area 6).  This dataset includes 1m digital surface model (filtered and unfiltered), 1m digital elevation models (filtered and unfiltered), and the raw Lidar point clouds (LAS format) in 1 km by 1 km tiles. Data acquisition, ground-truthing, vegetation surveys and processing were coordinated by Dr. Qinghua Guo and funded by NSF Award (EAR-0922307 , PI. Qinghua Guo), which aims to collect Lidar data at all CZOs, including extracting vegetation characteristics from the LIDAR point cloud data.  The Southern Sierra CZO is mainly focused on how water, soils, and climate interact with processes from the subsurface to the atmosphere.Publications associated with this dataset can be found at NCALM's Data Tracking Center

Dataset Acknowledgement: Please cite this data release as: Anderson, S.P., Qinghua, G., and Parrish, E.G., 2012, Snow-on and snow-off Lidar point cloud data and digital elevation models for study of topography, snow, ecosystems and environmental change at Southern Sierra Critical Zone Observatory, California: Southern Sierra CZO, University of California at Merced , digital media. 

Please cite this data release as: Qinghua, Guo. Roger Bales, 2012, Snow-on and snow-off Lidar point cloud data and digital elevation models for study of topography, snow, ecosystems and environmental change at Southern Sierra Critical Zone Observatory, California: Southern Sierra CZO, University of California at Merced, digital media. And the funding sources: National Science Funding: EAR-0922307. 

Please use either snow on/off or leaf on/off for all sites. For the credit, use my name, and PIs of the site (e.g. Qinghua, Roger Bales), check the CZO website for the name of PIs (there are one site which has two PIs). For leave on/off site, please use this title: Leaf-on and leaf-off Lidar point cloud data and digital elevation models for study of hydrologic, geomorphologic, and geochemical processes at XXXX (need to fill in the specific site name) Critical Zone Observatory.

Lidar data are collected by the National Center for Airborne Laser Mapping (NCALM - https://ncalm.cive.uh.edu), with project director Qinghua Guo, funded by National Science Foundation (EAR-0922307).

Dataset Citation: Southern Sierra Nevada Critical Zone Observatory: Snow On. Distributed by OpenTopography. https://doi.org/10.5069/G9GF0RFP . Accessed: 2024-04-25

Use License: CC BY 4.0

Dataset Keywords: Southern Sierra, CZO, Lidar, Critical Zone Observatories, SSCZO

Survey Date: 03/14/2010 - 03/24/2010
Publication Date: 05/09/2013

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Data Provider and Roles:
	1. National Center for Airborne Laser Mapping
	Role: Collector
	Url: https://ncalm.cive.uh.edu/

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

	3. Southern Sierra Critical Zone Observatory
	Role: Partner
	Url: http://criticalzone.org/sierra/


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Total number of points: 1,003,395,188 pts

Area: 109 km^2

Point Density: 9.21 pts/m^2

Classifications: 
	Class 1 - Unclassified: 760,391,886
	Class 2 - Ground: 242,752,324
	Class 3 - Low Vegetation: 88
	Class 4 - Medium Vegetation: 7
	Class 7 - Low Point (low noise): 13,870
	Class 9 - Water: 236,710
	Class 10 - Rail: 303
Coordinates System: 
	Horizontal: NAD83 (CORS96) / UTM Zone 11N Meters [EPSG: 26911]
	Vertical: NAVD88 (GEOID 03) [EPSG: 5703]

Survey Report: https://cloud.sdsc.edu/v1/AUTH_opentopography/www/metadata/2010_NCALM_CZO_Project_Report.pdf

LAS Validation Data Report: http://cloud.sdsc.edu/v1/AUTH_opentopography/www/lasReports/SSCZO_Mar10.html

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Dataset Extent in KMZ format: https://portal.opentopography.org/getKml?otCollectionID=OT.042013.26911.1&download=true

Dataset Spatial Bounds:
	North: 37.1272541815809°
	South: 36.5737785435583°
	East: -118.61038688853°
	West: -119.743632516081°