Niobrara River, Nebraska

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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
Metadata Download:
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    Point Cloud (1050 nm)   Bulk Download     opentopoID: OTLAS.102016.26914.1

    Point Cloud (532 nm)   Bulk Download     opentopoID: OTLAS.102016.26914.1b

    Raster Data   Bulk Download     opentopoID: 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).

    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: 2022-12-10

    Use License: CC BY 4.0

    Dataset Keywords: lidar

    Survey Date: 07/11/2015

    Publication Date: 10/31/2016
    Total number of points: 295,745,974 pts

    Area: 61 km2

    Point Density: 4.85 pts/m2

    Classifications:
        Class 1 - Unclassified96,280,649
        Class 2 - Ground87,345,327
        Class 4 - Medium Vegetation76,007,992
        Class 9 - Water36,109,645
        Class 10 - Rail2,361

    Raster Resolution: 1 meter

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

    Units: meter

    Survey Report: 2015_Alexander_Nebraska_Metadata.pdf

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

    Dataset Extent in KMZ format: Download

    Dataset Spatial Bounds: North: 42.8405077634647°     South: 42.6968030743806°     East: -99.1809917127469°     West: -99.5607312877417°