Parump Valley: California/Nevada State Line

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DOI: https://doi.org/10.5069/G9K935FB
OT Collection ID: OT.012013.26911.1
OT Collection Name: Parump Valley: California/Nevada State Line
Short Name: CA05_Wernicke
Collection Platform: Airborne Lidar
Download and Access Products:

Point Cloud Data   Bulk Download     opentopoID: OTLAS.012013.26911.1
Collection Overview: NCALM. PI: Brian Wernicke, Caltech and Bernard Guest, University of Calgary. The survey area consisted of three 500 meter wide corridors near the California-Nevada border and across the Pahrump Valley. The corridors total approximately 60 km long, 0.5 to 1 km wide and contained approximately 40 square km. Please note that the flight was conducted in an unconventional way as this was an add-on to other work and was done to quickly obtain data for the requested area. Rather than flying a regular, straight grid across the area, the airplane banked along the determined trajectory. This way of gathering data introduces noticeable error, especially on the fringes of the flight path, giving a "corduroy" appearance to the data. This is in addition to the background periodic fine scale elevation variation (normally 5 to 20cm) which is a property of the Optech LIDAR system, and within the machine's error limits. This effect is less noticeable in Corridor 1 as the plane was following a mostly straight trajectory. Our understanding is that if these preliminary data looked promising, a carefully planned survey would then be conducted if funding became available. Bare-earth extraction was not performed on this dataset due to the scarceness of vegetation in the interest area. Filtering the data with a conservative feature preserving algorithm (Hagerud) can remove some of the vegetation but with the expense of smoothing out some of the morphology in steep areas.


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: Parump Valley: California/Nevada State Line. Distributed by OpenTopography. https://doi.org/10.5069/G9K935FB . Accessed: 2024-07-21       Copied to Clipboard

Use License: CC BY 4.0

Dataset Keywords: lidar

Survey Date: 02/08/2005

Publication Date: 01/28/2013
Total number of points: 49,069,165 pts

Area: 48 km2

Point Density: 1.02 pts/m2

Classifications:
Class 0 - Never classified49,069,165


Coordinate System:
Horizontal: NAD83 (CORS96) / UTM Zone 11N Meters [EPSG: 26911]
Vertical: NAVD88 (GEOID 03) [EPSG: 5703]

Units: meter

Survey Report: Reports

LAS Validation Data Report: CA05_Wernicke.html
Tile index in shapefile format: Download

Dataset Extent in GeoJSON format:   CA05_Wernicke.geojson

Dataset Spatial Bounds: North: 36.3083838441972°     South: 36.0780261758416°     East: -115.804955601469°     West: -116.195600320899°