Niobrara River, Nebraska

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Overview

NCALM logo This dataset was collected using the Optech Gemini Airborne Laser Terrain Mapper (ALTM) using a beam wavelength of 1064 nm.

This dataset was collected as an NCALM Seed grant for PI Jason Alexandra, University of Wyoming.

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

Platform: Airborne Lidar
Survey Area: 61 km2
Point Density: 4.85 pts/m2
Survey Date: 07/11/2015
Full Metadata
Data Citation
Use License: CC BY 4.0
Funder: NSF     Collector: NCALM

Other Available Data Products:     Point Cloud (532 nm),     Raster,     Point Cloud Bulk Download (Sign in required)
1a. Select area of data to download or process  
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1. Coordinates & Classification

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

Data Selection Coordinates:       Manually enter selection coordinates (in the horizontal coordinate system listed above)  
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  Ground        
  Unclassified        

2. Point Cloud Data Download

     Point cloud data in LAZ format
    Point cloud data in LAS format
     Point cloud data in ASCII format

3A. DEM Generation (TIN)  

Gridding Method
    Calculate TIN
Gridding Parameters
  Grid Resolution (Default = 1 meter)
  Max. triangle size (Default 50 units)
  Grid Format

3B. DEM Generation (Local Gridding)  

Gridding Method
     Calculate Zmin grid
     Calculate Zmax grid
     Calculate Zmean grid
     Calculate Zidw grid
     Calculate standard deviation
     Calculate point count
Gridding Parameters
  Grid Resolution (Default = 1 meter)
  Radius value (Default = 1.4142 meter)
  Grid Format
  Null Filling

4. Raster Visualization  

Visualization type:
  Hillshade
  Color-relief
  Color hillshade
  Slope
  Aspect
  Roughness

5. 3D Point Cloud Visualization  

  Generate 3D point cloud browser visualization

6. Contour Lines  

7. Hydrologic Terrain Analysis Products (tauDEM)  

This tauDEM is an advanced processing service. It is available for registered users, who understand these resource intensive algorithms and its products.
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Job Description

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Data Citation     |     Use License: CC BY 4.0