Vertical Differencing [ Video Tutorial ]

Lidar Survey of the Snake River, WY 2012 (1064 nm/Gemini)
Welcome Guest   ( Sign In )

Overview

NCALM logo

This lidar survey was taken by NCALM over a portion of the Snake River watershed in Wyoming for Dr. Carl Legleiter at the University of Wyoming. Two lidar sensors were used during the data collection: the Optech Gemini Laser Terrain Mapper and the Optech Aquarius Laser Terrain Mapper. This landing page is providing access to the data acquired from the Gemini sensor, which is an infrared laser sensor with a wavelength of 1064 nm. Data was collected in August 2012 over an area just north of the Jackson Hole airport.

To access the Aquarius sensor data (532 nm) click here

Reference Dataset
Total points: pts
Survey Area: km2
Point Density: pts/m2
Compare Dataset  
Total points: pts
Survey Area: km2
Point Density: pts/m2
Select area of data to process  
 

1. Vertical Differencing Datasets and Coordinate System  


  Reference dataset:
  Compare dataset:  
Dataset:
Survey Date:
Horizontal Coordinates:
Vertical Coordinates:
Units:
Data Selection Coordinates (Select an area on map)
  Manually enter selection coordinates (in the horizontal coordinate system listed above)  

  Choose Return Classification    
  Ground

2. DEM Generation (TIN)  

  Grid Resolution (Default = 1.0 meter)
  Max. triangle size (Default 50 units)

3. Error handling (optional)  

  Estimate mean uncertainty using geostatistical approach.  
  User-defined Minimum Level of Detection  

4. Visualization  

  Generate additional hillshade images from DEMs for reference and compare datasets.

Altitude of the light:  (in range: [0-90] degrees)
Azimuth of the light:  (in range: [0-360] degrees)

Job Description & Notification

These options allow users to describe and keep track of their jobs. Information entered below is saved along with other job parameters in your personal myOpenTopo dashboard (available only to registered OpenTopography users).

Email address
for notification upon completion of processing
  Sign in
More options
By accessing data via OpenTopography you agree to acknowledge OpenTopography and the dataset source in publications, presentations, and other materials produced using these data:
Data Citation     |     Use License: CC BY 4.0