DOI: http://dx.doi.org/10.5069/G97P8W9T
OT Collection ID: OT.032006.32611.1
Dataset Name: B4 Project - Southern San Andreas and San Jacinto Faults
Short Name: B4
Collection Platform: Airborne LiDAR

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Dataset Overview: The B4 LiDAR Project collected LiDAR point cloud data of the southern San Andreas and San Jacinto Faults in southern California. Data acquisition and processing were performed by the National Center for Airborne Laser Mapping (NCALM) in partnership with the USGS and Ohio State University through funding from the EAR Geophysics program at the National Science Foundation (NSF). Optech International contributed the ALTM3100 laser scanner system. UNAVCO and SCIGN assisted in GPS ground control and continuous high rate GPS data acquisition. A group of volunteers from USGS, UCSD, UCLA, Caltech and private industry, as well as gracious landowners along the fault zones, also made the project possible. If you utilize the B4 data for talks, posters or publications, we ask that you acknowledge the B4 project. The B4 logo can be downloaded here.

Dataset Acknowledgement: The B4 LiDAR Project collected LiDAR point cloud data of the southern San Andreas and San Jacinto Faults in southern California.  Data acquisition and processing were performed by the National Center for Airborne Laser Mapping (NCALM)  in partnership with the USGS and Ohio State University through funding from the EAR Geophysics program at the National Science Foundation (NSF).  Optech International contributed the ALTM3100 laser scanner system. UNAVCO and SCIGN assisted in GPS ground control and continuous high rate GPS data acquisition. A group of volunteers from USGS, UCSD, UCLA, Caltech and private industry, as well as gracious landowners along the fault zones, also made the project possible. http://dx.doi.org/10.5069/G97P8W9T

Dataset Keywords: B4 project, San Andreas fault, San Jacinto fault, California

Survey Date: 05/18/2005 - 05/27/2005

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Data Provider and Roles:
	1. National Center for Airborne Laser Mapping
	Role: Collector
	Url: http://ncalm.org

	2. Ohio State University, School of Earth Sciences
	Role: Collector
	Url: http://www.geology.ohio-state.edu

	3. National Science Foundation
	Role: Funder
	Url: http://nsf.gov

	4. Ohio State University, School of Earth Sciences
	Role: Partner
	Url: http://www.geology.ohio-state.edu

	5. UNAVCO
	Role: Partner
	Url: http://www.unavco.org

	6. U.S. Geological Survey
	Role: Partner
	Url: http://www.usgs.gov


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Total LiDAR Points: 5,681,610,713 pts

Area: 1,906 km^2

Point Density: 2.98 pts/m^2

Coordinates System: 
	Horizontal: UTM Zone 11 N WGS84 Meters [EPSG: 32611]
	Vertical: Ellipsoid

Survey Report: http://www.earthsciences.osu.edu/b4/Site/Welcome.html
LAS Validation Data Report: https://cloud.sdsc.edu/v1/AUTH_opentopography/www/lasReports/B4.html

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Download and Access Products: 
	1. Point Cloud Data
		opentopoID: OTLAS.032006.32611.1
		Download and Processing: http://opentopo.sdsc.edu/gridsphere/gridsphere?gs_action=lidarDataset&cid=geonlidarframeportlet&opentopoID=OTLAS.032006.32611.1


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Dataset Extent in KMZ format: https://cloud.sdsc.edu/v1/AUTH_opentopography/www/lidarkmls/point_cloud/b4_dataset_extent_v1.kmz

Dataset Spatial Bounds:
	North: 36.0708°
	South: 32.8649°
	East: -115.6148°
	West: -120.6378°