Photogrammetry-derived orthoimagery and elevation data for Barry Arm landslide, Southcentral Alaska, June 27, 2020

Description

The State of Alaska Division of Geological & Geophysical Surveys (DGGS) used Structure-from-Motion (SfM) photogrammetry from an unmanned aerial system (UAS) to produce a digital surface model (DSM) and orthoimagery of a large landslide in northern Barry Arm, northwest Prince William Sound, Alaska, during near snow-free ground conditions on June 27, 2020. The survey aims to provide snow-free surface elevations and imagery data to assess landslide movement with repeat surveys during snow-free surface conditions. This data release is one of a series of DGGS publications to present elevation data. The photogrammetry and Global Navigation Satellite System (GNSS) data were collected on June 26-27, 2020, and processed using Agisoft Metashape. This data collection is being released as a Raw Data File with an open end-user license. All files can be downloaded free of charge from the Alaska Division of Geological & Geophysical Surveys website (http://doi.org/10.14509/30596).

Resources

Name Format Description Link
0 hydro-enforced digital surface model and orthoimagery https://doi.org/10.14509/30596
0 https://doi.org/10.14509/30596
0 https://doi.org/10.14509/30593
0 https://doi.org/10.14509/29849
0 https://doi.org/10.14509/29752
0 https://doi.org/10.14509/30589
0 https://doi.org/10.14509/30122
0 https://doi.org/10.14509/29781

Tags

  • orthoimagery
  • college fjord
  • topography
  • aerial photography
  • structure from motion
  • engineering
  • glacial processes
  • digital surface model (dsm)
  • debris avalanche
  • web service
  • photogrammetry
  • aerial
  • geomorphology
  • harriman fiord
  • glacial geomorphology
  • slope instability
  • landslide susceptibility
  • holocene
  • geologic
  • port wells
  • elevation
  • engineering geology
  • geology
  • dggs
  • slope
  • glacial deposits
  • point cloud data
  • surficial
  • passage canal
  • rock avalanche
  • unconsolidated deposits
  • barry arm
  • rockfall
  • aerial geology
  • glacial geology
  • geotechnical
  • surficial geology
  • geological process
  • barry glacier
  • landslide
  • hazards
  • surface
  • glacial
  • tsunami
  • geologic hazards
  • remote sensing

Topics

  • Local Government

Categories