DOI: https://doi.org/10.5069/G947481V
OT Collection ID: OT.042020.26910.1
OT Collection Name: High Resolution Topography over Gabilan Mesa, CA 2003
Short Name: GabilanMesa
Collection Platform: Airborne Lidar

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Download and Access Products: 
	1. Point Cloud Data
		opentopoID: OTLAS.042020.26910.1
		Data Processing: https://portal.opentopography.org/lidarDataset?opentopoID=OTLAS.042020.26910.1

	2. Raster
		opentopoID: OTSDEM.042020.26910.1
		Data Processing: https://portal.opentopography.org/raster?opentopoID=OTSDEM.042020.26910.1


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Collection Overview: Airborne lidar collection to study the formation of evenly spaced ridges and valleys over the Gabilan Mesa in California.  Further details can be found in the publication:  Perron, J. Taylor, James W. Kirchner, and William E. Dietrich. "Formation of evenly spaced ridges and valleys." Nature 460.7254 (2009): 502-505.  https://doi.org/10.1038/nature08174
NOTE:  The Digital Surface Model (DSM) is missing data in the North-East section of the study area.  The data providers are aware of the issue, and the problem exists in the original DSM dataset.  If you need DSM data in this section it is advised that you create a custom DSM from the raw lidar files herePublications associated with this dataset can be found at NCALM's Data Tracking Center

Dataset Acknowledgement: Laser altimetry for Gabilan Mesa was acquired and processed by NCALM (https://ncalm.cive.uh.edu) with support from the National Center for  Earth-surface Dynamics (NCED)

Dataset Citation: Dietrich, W. (2020). High Resolution Topography over Gabilan Mesa, CA 2003. National Center for Airborne Laser Mapping (NCALM). Distributed by OpenTopography. https://doi.org/10.5069/G947481V.. Accessed: 2024-12-22

Use License: CC BY 4.0

Dataset Keywords: mesa, california, gabilan, lidar

Survey Date: 05/26/2003 - 05/27/2003
Publication Date: 04/27/2020

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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/


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Total number of points: 203,565,449 pts

Area: 60.09 km^2

Point Density: 3.39 pts/m^2

Classifications: 
	Class 0 - Never classified: 102,347,950
	Class 2 - Ground: 101,217,499
Coordinates System: 
	Horizontal: NAD83 / UTM Zone 10N Meters [EPSG: 26910]
	Vertical: Ellipsoid (GRS80)

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

LAS Validation Data Report: https://portal.opentopography.org/lasReport?opentopoID=OTLAS.042020.26910.1

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Dataset Extent in KMZ format: https://portal.opentopography.org/getKml?otCollectionID=OT.042020.26910.1&download=true

Dataset Spatial Bounds:
	North: 36.01053051541°
	South: 35.8906172517063°
	East: -120.691795265351°
	West: -120.862457310254°