DOI: https://doi.org/10.5069/G94Q7RWT
OT Collection ID: OT.012012.26919.1
OT Collection Name: Durham, NH: Hyporheic Zone Extent and Exchange in a Coastal Stream
Short Name: NH08_Truslow
Collection Platform: Airborne Lidar

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Download and Access Products: 
	1. Point Cloud Data
		opentopoID: OTLAS.012012.26919.1
		Data Processing: https://portal.opentopography.org/lidarDataset?opentopoID=OTLAS.012012.26919.1


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Collection Overview: NCALM Seed Project PI: Danna Truslow, University of New Hampshire. The survey area is an irregular polygon approximately 16 km West of Portsmouth, NH and enclosing 42.5 square kilometers. The data were collected to study hyporheic zone extent and exchange in a coastal New Hampshire stream using heat as a tracer.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: Durham, NH: Hyporheic Zone Extent and Exchange in a Coastal Stream. Distributed by OpenTopography. https://doi.org/10.5069/G94Q7RWT . Accessed: 2024-12-22

Use License: CC BY 4.0

Dataset Keywords: lidar

Survey Date: 11/11/2008
Publication Date: 02/09/2012

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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: 516,574,267 pts

Area: 47 km^2

Point Density: 10.99 pts/m^2

Classifications: 
	Class 1 - Unclassified: 373,638,638
	Class 2 - Ground: 142,895,244
	Class 6 - Building: 1,022
	Class 7 - Low Point (low noise): 39,363
Coordinates System: 
	Horizontal: NAD83 (CORS96) / UTM Zone 19N Meters [EPSG: 26919]
	Vertical: NAVD88 (GEOID 03) [EPSG: 5703]

Survey Report: https://cloud.sdsc.edu/v1/AUTH_opentopography/www/metadata/NCALM/Truslow_NewHampshire_2008.pdf

LAS Validation Data Report: http://cloud.sdsc.edu/v1/AUTH_opentopography/www/lasReports/NH08_Truslow.html

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Dataset Extent in KMZ format: https://portal.opentopography.org/getKml?otCollectionID=OT.012012.26919.1&download=true

Dataset Spatial Bounds:
	North: 43.156461°
	South: 43.083201°
	East: -70.905642°
	West: -71.02221°