DOI: https://doi.org/10.5069/G9668B3C
OT Collection ID: OT.102012.26912.3
OT Collection Name: Big Sky, MT: Patterns of Nitrogen Export & Land Use Change
Short Name: MT05_Gardner
Collection Platform: Airborne Lidar

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Download and Access Products: 
	1. Point Cloud Data
		opentopoID: OTLAS.102012.26912.3
		Data Processing: https://portal.opentopography.org/lidarDataset?opentopoID=OTLAS.102012.26912.3

	2. Google Earth Image Overlays
		opentopoID: OTGE.102012.26912.3
		Download: https://portal.opentopography.orghttps://cloud.sdsc.edu/v1/AUTH_opentopography/www/files/BigSky_MT.kml


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Collection Overview: PI: Kristin Gardner, Montana State University. The survey area is a 249 square kilometer irregular polygon located 21 kilometers west of Big Sky, Montana. Seven flights were made beginning on September 20, 2005 and completing on September 25, 2005. Data were collected to investigate spatial and temporal patterns of nitrogen export and land use change in a mountainous watershed.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: Big Sky, MT: Patterns of Nitrogen Export & Land Use Change. Distributed by OpenTopography. https://doi.org/10.5069/G9668B3C . Accessed: 2024-05-01

Use License: CC BY 4.0

Dataset Keywords: lidar

Survey Date: 09/20/2005 - 09/25/2005
Publication Date: 11/21/2012

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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: 721,219,757 pts

Area: 249 km^2

Point Density: 2.9 pts/m^2

Classifications: 
	Class 1 - Unclassified: 501,381,188
	Class 2 - Ground: 219,838,569
Coordinates System: 
	Horizontal: NAD83 (CORS96) / UTM Zone 12N Meters [EPSG: 26912]
	Vertical: NAVD88 (GEOID 03) [EPSG: 5703]

Survey Report: https://cloud.sdsc.edu/v1/AUTH_opentopography/www/metadata/NCALM/MT05_Gardner.zip

LAS Validation Data Report: http://cloud.sdsc.edu/v1/AUTH_opentopography/www/lasReports/MT05_Gardner.html

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Dataset Extent in KMZ format: https://portal.opentopography.org/getKml?otCollectionID=OT.102012.26912.3&download=true

Dataset Spatial Bounds:
	North: 45.361817°
	South: 45.167918°
	East: -111.242878°
	West: -111.517664°