Slumgullion Landslide, Colorado (July 3, 2015)

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Overview

NCALM logo Airborne lidar was collected by NCALM for PI Dr. Hyongki Lee (University of Houston) over the Slumgullion Landslide, Colorado. This dataset includes data from survey one of three in the collection. Three surveys were conducted on July 3, 7, 10, 2015 (DOY 184, 188, 191).

The Slumgullion Earthflow, a slow moving landslide, crawled down the valley about 700 years ago creating the 4 miles (6.4 km) long and 2,000 feet (610 m) wide mass. The earthflow lies a few miles south east of Lake City. The landmark site covers 1,291 acres (522 ha) and is owned by the US Forest Service and the Bureau of Land Management. It is "a striking example of mass wasting (the movement of large masses of earth material)." Lake San Cristobal was dammed by the earthflow. The earthflow has been moving continuously for about 300 years over older stable rock. It moves at a rate of about 7 meters (23 feet) per year.
Slumgullion Earthflow. (2017, April 12). In Wikipedia, The Free Encyclopedia. Retrieved 16:39, June 29, 2017, from https://en.wikipedia.org/w/index.php?title=Slumgullion_Earthflow&oldid=775038032


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

Platform: Airborne Lidar
Survey Area: 15.25 km2
Point Density: 17.32 pts/m2
Survey Date: 07/03/2015
Full Metadata
Data Citation
Use License: CC BY 4.0
Funder: NSF     Collector: NCALM

Other Available Data Products:     Point Cloud (July 7),     Point Cloud (July 10),     Raster (July 3),     Raster (July 7),     Raster (July 10),     Point Cloud Bulk Download (Sign in required)
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1. Coordinates & Classification

Horizontal Coordinates: NAD83 (2011) / UTM Zone 13N Meters [EPSG: 26913]
Vertical Coordinates: NAVD88 (GEOID 12A) [EPSG: 5703]
Units: meter

Data Selection Coordinates:       Manually enter selection coordinates (in the horizontal coordinate system listed above)  
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2. Point Cloud Data Download

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

3A. DEM Generation (TIN)  

Gridding Method
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Gridding Parameters
  Grid Resolution (Default = 1 meter)
  Max. triangle size (Default 50 units)
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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:
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  Slope
  Aspect
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6. Contour Lines  

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Data Citation     |     Use License: CC BY 4.0