Yosemite, CA: El Portal, Mariposa Grove, Yosemite Canyon & Tuolumne Meadows

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Overview

The survey area consists of five polygons totaling an area of 131 square kilometers covering portions of Yosemite National Park, California. The area of interest includes Yosemite Canyon, El Portal, Mariposa Grove and Tuolumne Meadows. hese data were collected by the National Center for Airborne Laser Mapping (NCALM) on behalf of Greg Stock of the National Parks Service


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

Platform: Airborne Lidar
Survey Area: 131 km2
Point Density: 2.59 pts/m2
Survey Date: 09/18/2006 - 09/22/2006
Full Metadata
Data Citation
Use License: CC BY 4.0
Funder: NSF     Collector: NCALM

Other Available Data Products:     Google Earth Imagery File,     Point Cloud Bulk Download (Sign in required)
1a. Select area of data to download or process  
  Usage Heat Map
 

1. Coordinates & Classification

Horizontal Coordinates: NAD83 (CORS) / UTM Zone 11N Meters [EPSG: 26911]
Vertical Coordinates: NAVD88 (GEOID 03) [EPSG: 5703]
Units: meter

Data Selection Coordinates:       Manually enter selection coordinates (in the horizontal coordinate system listed above)  
  Xmin = 261974.525576   Ymin = 4173427.002167   Xmax = 279648.128873   Ymax = 4184848.275497
  Choose Return Classification    
  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.
In order to access or enable this service, please log in or request an account.

Job Description

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

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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