DOI: https://doi.org/10.5069/G9416V04
OT Collection ID: OT.052014.26910.2
OT Collection Name: Gabilan Mesa, CA: Valley Alluviation effects on Hillslope-Channel Coupling
Short Name: CA13_Johnstone
Collection Platform: Airborne Lidar

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Download and Access Products: 
	1. Point Cloud Data
		opentopoID: OTLAS.052014.26910.2
		Data Processing: https://portal.opentopography.org/lidarDataset?opentopoID=OTLAS.052014.26910.2


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Collection Overview: NCALM Seed. PI: Sam Johnstone, Stanford University. The requested survey area is an irregular polygon located 10 km east of King City, California in the Wildhorse Valley of the Gabilan Mesa. The data were collected to investigate the impacts of valley alluviation on hillslope-channel coupling. The polygon at its widest point is approximately 13 km long by 5 km high and encloses approximately 75 square km. The survey took place on August 11, 2013.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 - https://ncalm.cive.uh.edu). NCALM funding provided by NSF's Division of Earth Sciences, Instrumentation and Facilities Program. EAR-1043051.

Dataset Citation: Gabilan Mesa, CA: Valley Alluviation effects on Hillslope-Channel Coupling. Distributed by OpenTopography. https://doi.org/10.5069/G9416V04 . Accessed: 2024-12-22

Use License: CC BY 4.0

Dataset Keywords: lidar

Survey Date: 08/11/2013
Publication Date: 08/11/2014

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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/


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Total number of points: 417,186,669 pts

Area: 75 km^2

Point Density: 5.56 pts/m^2

Classifications: 
	Class 1 - Unclassified: 71,714,238
	Class 2 - Ground: 345,471,956
	Class 3 - Low Vegetation: 144
	Class 5 - High Vegetation: 85
	Class 7 - Low Point (low noise): 246
Coordinates System: 
	Horizontal: NAD83 (2011) / UTM Zone 10N Meters [EPSG: 26910]
	Vertical: NAVD88 (GEOID 12A) [EPSG: 5703]

Survey Report: https://cloud.sdsc.edu/v1/AUTH_opentopography/www/metadata/NCALM/2013_Seed_Johnstone_Metadata.pdf

LAS Validation Data Report: http://cloud.sdsc.edu/v1/AUTH_opentopography/www/lasReports/CA13_Johnstone.html

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Dataset Extent in KMZ format: https://portal.opentopography.org/getKml?otCollectionID=OT.052014.26910.2&download=true

Dataset Spatial Bounds:
	North: 36.2313474875216°
	South: 36.1695568656762°
	East: -120.861318754042°
	West: -121.041914091997°