DOI: https://doi.org/10.5069/G9MG7MDT
OT Collection ID: OT.092012.26911.1
OT Collection Name: Yosemite, CA: Spatial & Temporal Patterns of Nitrogen Export
Short Name: CA06_Martel
Collection Platform: Airborne Lidar

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Download and Access Products: 
	1. Point Cloud Data
		opentopoID: OTLAS.092012.26911.1
		Data Processing: https://portal.opentopography.org/lidarDataset?opentopoID=OTLAS.092012.26911.1


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Collection Overview: The survey area consists of a 101 square kilometer polygon over an eastern portion of Yosemite National Park. Data were collected to study spatial and temporal patterns of nitrogen export and land use change in a mountainous watershed. hese data were collected by the National Center for Airborne Laser Mapping (NCALM) on behalf of Steve Martel, University of HawaiiPublications 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: Yosemite, CA: Spatial & Temporal Patterns of Nitrogen Export. Distributed by OpenTopography. https://doi.org/10.5069/G9MG7MDT . Accessed: 2024-12-22

Use License: CC BY 4.0

Dataset Keywords: lidar

Survey Date: 09/18/2006 - 09/22/2006
Publication Date: 09/18/2012

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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: 253,397,107 pts

Area: 101 km^2

Point Density: 2.51 pts/m^2

Classifications: 
	Class 1 - Unclassified: 125,219,084
	Class 2 - Ground: 128,178,023
Coordinates System: 
	Horizontal: NAD83 (CORS) / UTM Zone 11N Meters [EPSG: 26911]
	Vertical: NAVD88 (GEOID 03) [EPSG: 5703]

Survey Report: https://cloud.sdsc.edu/v1/AUTH_opentopography/www/metadata/NCALM/CA06_Martel_ProcessingReport.pdf

LAS Validation Data Report: http://cloud.sdsc.edu/v1/AUTH_opentopography/www/lasReports/CA06_Martel.html

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Dataset Extent in KMZ format: https://portal.opentopography.org/getKml?otCollectionID=OT.092012.26911.1&download=true

Dataset Spatial Bounds:
	North: 37.888563°
	South: 37.778121°
	East: -119.375974°
	West: -119.523217°