IML Critical Zone Observatory, Clear Creek Aug 2014 Lidar Survey (1064 nm)

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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 by NCALM for PI Dr. Praveen Kumar, University of Illinois. Clear Creek is part of the Intensively Managed Landscapes (ILM) Critical Zone Observatory (CZO).

The requested survey area consisted of two rectangles - called East and West - enclosing approximately 204 square kilometers along with their associated watercourse corridors. The West rectangle is located 35 km NW of Iowa City, Iowa and the East rectangle is located 10 km NW of the same city.

This survey was performed with 2 different LiDAR systems: 1) Optech Gemini Airborne Laser Terrain Mapper (ALTM) (this dataset) which is an infrared laser mapping sensor and 2) Optech Aquarius ALTM (available here) 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).

Full waveform files are available via this link.


Publications associated with this dataset can be found at NCALM's Data Tracking Center

Platform: Airborne Lidar
Survey Area: 248.48 km2
Point Density: 7.79 pts/m2
Survey Date: 08/02/2014 - 08/03/2014
Full Metadata
Data Citation     Copied
Use License: CC BY 4.0
Funder: NSF     Partner: IML CZO     Collector: NCALM

Other Available Data Products: Point Cloud (532 nm)Raster (1064 nm)Raster (532 nm)Point Cloud Bulk Download
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1. Coordinates & Classification

Horizontal Coordinates: NAD83 (2011) / UTM Zone 15N Meters [EPSG: 26915]
Vertical Coordinates: NAVD88 (GEOID 12A)
Units: meter
Data Selection Coordinates (Select an area on map)
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  Ground        
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2. Point Cloud Data Download

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

3A. Custom DEM Generation (TIN)  

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Gridding Parameters
  Grid Resolution (Default = 1 meter)
  Max. triangle size (Default 50 units)
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3B. Custom DEM Generation (Local Gridding)  

Gridding Method
     Calculate Zmin grid
     Calculate Zmax grid
     Calculate Zmean grid
     Calculate Zidw grid
     Calculate standard deviation
     Calculate point count

4. Raster Visualization  

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

5. 3D Point Cloud Visualization  

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6. Contour Lines  

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Data Citation     |     Use License: CC BY 4.0