Niobrara River, Nebraska

Welcome Guest   ( Sign In )
DOI: https://doi.org/10.5069/G9NP22DP
OT Collection ID: OT.102016.26914.1
OT Collection Name: Niobrara River, Nebraska
Short Name: NE15_Alexander, NE15_AlexanderB
Collection Platform: Airborne Lidar
Download and Access Products:
Point Cloud (1050 nm)Bulk DownloadopentopoID: OTLAS.102016.26914.1
Point Cloud (532 nm)Bulk DownloadopentopoID: OTLAS.102016.26914.1b
Raster DataBulk DownloadopentopoID: OTSDEM.102016.26914.1
Collection Overview: NCALM logo This dataset was collected as an NCALM Seed grant for PI Jason Alexander, University of Wyoming, for the purpose of quantifying the relationship between channel morphology and the topography of large emergent sandbars.

This survey was performed with 2 different LiDAR systems: 1) Optech Gemini Airborne Laser Terrain Mapper (ALTM) which is an infrared laser mapping sensor and 2) Optech Aquarius ALTM which is a hybrid laser mapping system as it collects simultaneous land and shallow water-depth measurements. It operates in the green spectrum, thus enabling it to penetrate water. These LiDAR mapping systems along with an Optech 12-bit full waveform digitizer were mounted consecutively in a twin-engine Piper PA- 31-350 Navajo Chieftain (Tail Number N154WW).


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). NCALM funding provided by NSF's Division of Earth Sciences, Instrumentation and Facilities Program. EAR-1043051.

Dataset Citation: Niobrara River, Nebraska. Distributed by OpenTopography. https://doi.org/10.5069/G9NP22DP . Accessed: 2024-12-10       Copied to Clipboard

Use License: CC BY 4.0

Dataset Keywords: lidar

Survey Date: 07/11/2015

Publication Date: 10/31/2016
Total number of points:
NE15_Alexander:   295,745,974 pts
NE15_AlexanderB:   289,149,362 pts

Area: 61 km2

Point Density:
NE15_Alexander:   4.85 pts/m2
NE15_AlexanderB:   4.85 pts/m2

Classifications:
NE15_AlexanderNE15_AlexanderB
Class 1 - Unclassified96,280,649156,946,505
Class 2 - Ground87,345,32784,641,851
Class 4 - Medium Vegetation76,007,9920
Class 7 - Low Point (low noise)01
Class 9 - Water36,109,64534,724,725
Class 10 - Rail2,36113,316
Class 15 - Transmission Tower012,822,964

Raster Resolution: 1 meter

Coordinate System:
Horizontal: NAD83 (2011) / UTM Zone 14N Meters [EPSG: 26914]
Vertical: NAVD88 (GEOID 09) [EPSG: 5703]

Units: meter

Survey Report: Reports

LAS Validation Data Report:
NE15_Alexander.html
NE15_AlexanderB.html
Tile index in shapefile format:
NE15_Alexander
NE15_AlexanderB

Dataset Extent in GeoJSON format:
Point Cloud: NE15_Alexander.geojson
Raster: NE15_Alexander.geojson
Point Cloud: NE15_AlexanderB.geojson

Dataset Spatial Bounds: North: 42.8405077634647°     South: 42.6968030743806°     East: -99.18099171274692°     West: -99.5607312877417°