Vertical Differencing [ Video Tutorial ]

Pre-Kumamoto Earthquake (16 April 2016) Rupture Lidar Scan
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Overview

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The 16 April 2016 M7 Kumamoto earthquake ruptured the Futagawa- Hinagu fault zone on Kyushu Island of southwestern Japan. The lidar dataset collected by Air Survey Co., Ltd., of Japan covers the western half of the rupture zone. The acquisition of the imagery closely brackets the timing of the earthquake: The pre-earthquake dataset was acquired on 15 April 2016 and the post-earthquake dataset was acquired on 23 April 2016.

For more information on this dataset refer to the following publications:

  • Scott, C. P., Arrowsmith, J. R., Nissen, E., Lajoie, L., Maruyama, T., & Chiba, T. (2018). The M7 2016 Kumamoto, Japan, Earthquake: 3-D Deformation Along the Fault and Within the Damage Zone Constrained From Differential Lidar Topography. Journal of Geophysical Research: Solid Earth. https://doi.org/10.1029/2018JB015581
  • Scott, C., Champenois, J., Klinger, Y., Nissen, E., Maruyama, T., Chiba, T., & Arrowsmith, R. (2019). 2016 M7 Kumamoto, Japan, Earthquake Slip Field Derived From a Joint Inversion of Differential Lidar Topography, Optical Correlation, and InSAR Surface Displacements. Geophysical Research Letters. https://doi.org/10.1029/2019GL082202

Reference Dataset
Total points: pts
Survey Area: km2
Point Density: pts/m2
Compare Dataset  
Total points: pts
Survey Area: km2
Point Density: pts/m2
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1. Vertical Differencing Datasets and Coordinate System  


  Reference dataset:
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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)

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Data Citation     |     Use License: Not Provided