Drone lidar and SfM survey of the XEOLXELEK-Elk Lake Fault, May 2021

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Dataset Information

A SfM collection was collected on May 4th, 2021, over a section of fault scarp on the edge of XEOLXELEK – Elk Lake (pronounced: hul-lahk-lik, abbreviated XELF). Drone lidar was acquired over the same site two weeks later, on May 17th, 2021. The data were collected to assist in the excavation of a paleoseismic trench. An additional objective was to use these datasets to compare SfM and drone lidar collections. The imagery for the SfM model was collected using a DJI Phantom 4 Professional V2 drone, with the onboard camera. For the drone lidar, a Riegl MiniVux1-UAV laser scanner and an Applanix APX-20 UAV IMU mounted to a DJI Matrice 600 Pro drone were used to collect the dataset, more information about the platform can be found in Salomon et al. (2024). A classified point cloud and raster digital terrain models (DTMs) at different scales (20cm and 1m resolution) were produced.

opentopoID: OTDS.102023.3157.1
DOI: https://doi.org/10.5069/G92V2DBC
Platform: Airborne Lidar
Data Format: Point Cloud, Raster
Dataset Acknowledgement: We’d like to acknowledge and thank theW̱SÁNEĆ peoples for allowing us to work within their traditional territory. We's also like to thank the Capital Region District (specifically April Mitchell, Jeannette Mollin and Marc Solomon) for allowing us to work within the Elk/Beaver Lake Regional Park.
Dataset Citation: Nissen, E., Salomon, G., Finley, T.; Stephen, R.; Gaudreau, E.; Sethanant, I.. (2023). Drone lidar and SfM survey of the XEOLXELEK-Elk Lake Fault, May 2021. Distributed by OpenTopography. https://doi.org/10.5069/G92V2DBC. Accessed: 2025-07-06
Survey Date: 05/04/2021 - 05/17/2021
Survey Area: 0.04 km2
Publication Date: 10/23/2023
Total Number of Points: 26,935,352 pts
Point Density: 700.54 pts/m2
Coordinates System:
Horizontal: NAD83(CSRS) / UTM zone 10N [EPSG: 3157]
Vertical: CGVD2013(CGG2013) [EPSG: 6647]

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3D Point Cloud Viewer


Spatial Extent
Point Cloud Extent Raster Extent

Show Data Files

    Point Cloud
  File Name Size Points Area (m2) Density  
1     XELF_SfM.laz     127.50 MB     21,028,757     26,801     784.62         File Metadata    
SpatialReference: 
PROJCS["NAD83(CSRS) / UTM zone 10N",GEOGCS["NAD83(CSRS)",DATUM["NAD83_Canadian_Spatial_Reference_System",SPHEROID["GRS 1980",6378137,298.257222101,AUTHORITY["EPSG","7019"]],TOWGS84[0,0,0,0,0,0,0],AUTHORITY["EPSG","6140"]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","4617"]],PROJECTION["Transverse_Mercator"],PARAMETER["latitude_of_origin",0],PARAMETER["central_meridian",-123],PARAMETER["scale_factor",0.9996],PARAMETER["false_easting",500000],PARAMETER["false_northing",0],UNIT["metre",1,AUTHORITY["EPSG","9001"]],AXIS["Easting",EAST],AXIS["Northing",NORTH],AUTHORITY["EPSG","3157"]]

Geographic Coordinates (Lat, Lon, Elevation) - EPSG:4326
North-East (Lat, Lon, Elevation): (48.526387268800704, -123.38667216992533, 86.169)
South-West (Lat, Lon, Elevation): (48.52520786381495, -123.38826965185156, 35.514)

Projected Coordinates (X, Y) - EPSG:3157
North-East (X, Y): (471450.666, 5374880.856)
South-West (X, Y): (471332.053, 5374750.356)

Classifications:
Class 2 (Ground)12,567,968
Class 5 (High Vegetation)6,130,779
Class 6 (Building)492,718
Class 11 (Reserved for ASPRS Definition)1,653,189
Other Classes184,103
2     XELF_ULS_final.laz     34.74 MB     5,906,595     11,648     507.09         File Metadata    
SpatialReference: 
COMPD_CS["NAD83(CSRS) / UTM 10N",PROJCS["NAD83(CSRS) / UTM 10N",GEOGCS["NAD83(CSRS)",DATUM["unknown",SPHEROID["unnamed",6378137,298.2572221010042]],PRIMEM["Greenwich",0],UNIT["degree",0.0174532925199433]],PROJECTION["Transverse_Mercator"],PARAMETER["latitude_of_origin",0],PARAMETER["central_meridian",-123],PARAMETER["scale_factor",0.9996],PARAMETER["false_easting",500000],PARAMETER["false_northing",0],UNIT["metre",1,AUTHORITY["EPSG","9001"]]],VERT_CS["unknown",VERT_DATUM["unknown",2005],UNIT["metre",1.0,AUTHORITY["EPSG","9001"]],AXIS["Up",UP]]]

Geographic Coordinates (Lat, Lon, Elevation) - EPSG:4326
North-East (Lat, Lon, Elevation): (48.52638727448518, -123.38667315597363, 91.8755)
South-West (Lat, Lon, Elevation): (48.52520787125809, -123.38827011239461, 59.99025)

Projected Coordinates (X, Y) - EPSG:3157
North-East (X, Y): (471450.5932, 5374880.857)
South-West (X, Y): (471332.019, 5374750.357)

Classifications:
Class 1 (Unclassified)1,679,361
Class 2 (Ground)2,826,836
Class 5 (High Vegetation)1,400,397
Class 7 (Low Point (noise))1
  Summary 162.24 MB     26,935,352     38,449     700.54      
    Raster Data
  File Name Size Resolution Dimensions Layer Type  
1     dtm_1m.tif     41.45 KB     1 meter     119 x 131     Digital Terrain Model (DTM)             File Metadata    
SpatialReference Not available.

Geographic Coordinates (Lat, Lon) - EPSG:4326
North-East (Lat, Lon): (48.52638857944055, -123.38666765619851)
South-West (Lat, Lon): (48.52520465876302, -123.38827034516923)

Projected Coordinates (X, Y) - EPSG:3157
North-East (X, Y): (471451.0, 5374881.0)
South-West (X, Y): (471332.0, 5374750.0)
2     dtm_20cm.tif     344.50 KB     0.33 meter     360 x 397     Digital Terrain Model (DTM)             File Metadata    
SpatialReference Not available.

Geographic Coordinates (Lat, Lon) - EPSG:4326
North-East (Lat, Lon): (48.52638803375763, -123.38666941276767)
South-West (Lat, Lon): (48.52520403222958, -123.38826939232044)

Projected Coordinates (X, Y) - EPSG:3157
North-East (X, Y): (471450.87, 5374880.94)
South-West (X, Y): (471332.07, 5374749.93)
  Summary 385.95 KB            
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