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