Virginia Tech StREAM Lab Winter 2021 Drone Lidar Survey

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Dataset Information

Two drone lidar flights were conducted on November 11, 2021 and December 13, 2021 over the Virginia Tech StREAM Lab (https://www.bse.vt.edu/research/facilities/StREAM_Lab.html) during leaf-off conditions. The lidar data were collected using a Vapor35 (AeroVironment, Simi Valley, CA, USA) with a YellowScan Surveyor Core lidar unit (Monfeerier-sur-Lez, France). From these two flights, a classified point cloud, a ground point density raster (1 m2 resolution), a digital elevation model (DEM) with surveyed stream bathymetry (0.1 m2 resolution), and a canopy height model (CHM; 0.1 m2 resolution) were created. This data was collected to support hydrodynamic modeling research.

opentopoID: OTDS.042023.6346.1
DOI: https://doi.org/10.5069/G9348HK3
Platform: Airborne Lidar
Data Format: Point Cloud, Raster
Dataset Acknowledgement: This work was supported by the Virginia Agricultural Experiment Station (Blacksburg), the USDA National Institute of Food and Agriculture, U.S. Department of Agriculture (Washington, DC), the Virginia Tech Interdisciplinary Graduate Education Program in Remote Sensing and the National Science Foundation Graduate Research Fellowship Program under Grant No. 1840995.
Dataset Citation: Hession, W., Lehmann, L., Pingel, T., Czuba, J., Prior, E., Christensen, N., Kobayashi, Y., Resop, J. (2023). Virginia Tech StREAM Lab Winter 2021 Drone Lidar Survey. Distributed by OpenTopography. https://doi.org/10.5069/G9348HK3. Accessed: 2025-04-24
Survey Date: 11/11/2021 - 12/13/2021
Survey Area: 0.37 km2
Publication Date: 04/27/2023
Total Number of Points: 87,455,460 pts
Point Density: 235.99 pts/m2
Coordinates System:
Horizontal: NAD83(2011) / UTM zone 17N [EPSG: 6346]
Vertical: NAVD88 [EPSG: 5703]

View more metadata
3D Point Cloud Viewer


Spatial Extent
Point Cloud Extent Raster Extent

Show Data Files

    Point Cloud
  File Name Size Points Area (m2) Density  
1     SL_Winter2021_classified_projected_clipped.laz     450.91 MB     87,455,460     370,586     235.99         File Metadata    
SpatialReference: 
COMPD_CS["NAD83(2011) / UTM zone 17N + NAVD88 height",PROJCS["NAD83(2011) / UTM zone 17N",GEOGCS["NAD83(2011)",DATUM["NAD83_National_Spatial_Reference_System_2011",SPHEROID["GRS 1980",6378137,298.257222101,AUTHORITY["EPSG","7019"]],AUTHORITY["EPSG","1116"]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","6318"]],PROJECTION["Transverse_Mercator"],PARAMETER["latitude_of_origin",0],PARAMETER["central_meridian",-81],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","6346"]],VERT_CS["NAVD88 height",VERT_DATUM["North American Vertical Datum 1988",2005,EXTENSION["PROJ4_GRIDS","g2012a_conus.gtx,g2012a_alaska.gtx,g2012a_guam.gtx,g2012a_hawaii.gtx,g2012a_puertorico.gtx,g2012a_samoa.gtx"],AUTHORITY["EPSG","5103"]],UNIT["metre",1,AUTHORITY["EPSG","9001"]],AXIS["Up",UP],AUTHORITY["EPSG","5703"]]]

Geographic Coordinates (Lat, Lon, Elevation) - EPSG:4326
North-East (Lat, Lon, Elevation): (37.21313162739071, -80.44188175861949, 619.09)
South-West (Lat, Lon, Elevation): (37.203606696109915, -80.44873017874254, 601.95)

Projected Coordinates (X, Y) - EPSG:6346
North-East (X, Y): (549520.43, 4118662.05)
South-West (X, Y): (548918.93, 4117601.81)

Classifications:
Class 2 (Ground)41,943,096
Class 3 (Low Vegetation)34,563,573
Class 4 (Medium Vegetation)6,063,663
Class 5 (High Vegetation)4,885,128
    Raster Data
  File Name Size Resolution Dimensions Layer Type  
1     CHM_final_nonegs.tif     243.91 MB     0.1 meter     5971 x 10547     Canopy Height Model (CHM)             File Metadata    
SpatialReference 
PROJCS["NAD_1983_2011_UTM_Zone_17N",     GEOGCS["NAD83(2011)",         DATUM["NAD83_National_Spatial_Reference_System_2011",             SPHEROID["GRS 1980",6378137,298.2572221010042,                 AUTHORITY["EPSG","7019"]],             AUTHORITY["EPSG","1116"]],         PRIMEM["Greenwich",0],         UNIT["degree",0.0174532925199433],         AUTHORITY["EPSG","6318"]],     PROJECTION["Transverse_Mercator"],     PARAMETER["latitude_of_origin",0],     PARAMETER["central_meridian",-81],     PARAMETER["scale_factor",0.9996],     PARAMETER["false_easting",500000],     PARAMETER["false_northing",0],     UNIT["metre",1,         AUTHORITY["EPSG","9001"]],     AUTHORITY["EPSG","6346"]]

Geographic Coordinates (Lat, Lon) - EPSG:4326
North-East (Lat, Lon): (37.21312023773176, -80.44189983002087)
South-West (Lat, Lon): (37.20364641204898, -80.44869730004719)

Projected Coordinates (X, Y) - EPSG:6346
North-East (X, Y): (549518.834, 4118660.777)
South-West (X, Y): (548921.822, 4117606.233)
2     DEM_01_final.tif     38.45 MB     0.1 meter     5971 x 10546     DTM with bathymetry             File Metadata    
SpatialReference 
PROJCS["NAD_1983_2011_NAD83_2011_UTM_zone_17N",     GEOGCS["NAD83(2011)",         DATUM["NAD83_National_Spatial_Reference_System_2011",             SPHEROID["GRS 1980",6378137,298.2572221010042,                 AUTHORITY["EPSG","7019"]],             AUTHORITY["EPSG","1116"]],         PRIMEM["Greenwich",0],         UNIT["degree",0.0174532925199433],         AUTHORITY["EPSG","6318"]],     PROJECTION["Transverse_Mercator"],     PARAMETER["latitude_of_origin",0],     PARAMETER["central_meridian",-81],     PARAMETER["scale_factor",0.9996],     PARAMETER["false_easting",500000],     PARAMETER["false_northing",0],     UNIT["metre",1,         AUTHORITY["EPSG","9001"]]]

Geographic Coordinates (Lat, Lon) - EPSG:4326
North-East (Lat, Lon): (37.21312012055397, -80.44189983088398)
South-West (Lat, Lon): (37.20364641204898, -80.44869730004719)

Projected Coordinates (X, Y) - EPSG:6346
North-East (X, Y): (549518.834, 4118660.764)
South-West (X, Y): (548921.822, 4117606.233)
3     pd_1m_final.tif     383.44 KB     1 meter     598 x 1055                 File Metadata    
SpatialReference 
PROJCS["NAD_1983_2011_UTM_Zone_17N",     GEOGCS["NAD83(2011)",         DATUM["NAD83_National_Spatial_Reference_System_2011",             SPHEROID["GRS 1980",6378137,298.2572221010042,                 AUTHORITY["EPSG","7019"]],             AUTHORITY["EPSG","1116"]],         PRIMEM["Greenwich",0],         UNIT["degree",0.0174532925199433],         AUTHORITY["EPSG","6318"]],     PROJECTION["Transverse_Mercator"],     PARAMETER["latitude_of_origin",0],     PARAMETER["central_meridian",-81],     PARAMETER["scale_factor",0.9996],     PARAMETER["false_easting",500000],     PARAMETER["false_northing",0],     UNIT["metre",1,         AUTHORITY["EPSG","9001"]],     AUTHORITY["EPSG","6346"]]

Geographic Coordinates (Lat, Lon) - EPSG:4326
North-East (Lat, Lon): (37.21312012055397, -80.44189983088398)
South-West (Lat, Lon): (37.20364641204898, -80.44869730004719)

Projected Coordinates (X, Y) - EPSG:6346
North-East (X, Y): (549518.834, 4118660.764)
South-West (X, Y): (548921.822, 4117606.233)
  Summary 282.73 MB            
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