Photogrammetry-derived orthoimagery and elevation for Kotlik, Alaska, collected July 9-10, 2021

Description

The State of Alaska Division of Geological & Geophysical Surveys (DGGS) collected low-altitude aerial images from an unmanned aerial vehicle (UAV) on July 9-10, 2021 and used Structure-from-Motion (SfM) photogrammetry to produce a digital surface model (DSM) and orthoimage of Kotlik. The orthoimagery and elevation data are for assessing coastal hazards and changes. We used Trimble Business Center to process the Global Navigation Satellite System (GNSS) data used for positional control. We used Agisoft Metashape to process the photogrammetry data. These products are released as a Raw Data File with an open end-user license. All files can be downloaded from the Alaska Division of Geological & Geophysical Surveys website (http://doi.org/10.14509/30789).

Resources

Name Format Description Link
0 https://doi.org/10.14509/30783
0 https://doi.org/10.14509/30561
0 https://doi.org/10.14509/30764
0 https://doi.org/10.14509/30789
0 https://doi.org/10.14509/30083
0 https://doi.org/10.14509/30084
0 digital surface model and orthoimagery https://doi.org/10.14509/30789

Tags

  • digital elevation model
  • topography
  • coastal and river
  • engineering
  • methods
  • digital surface model (dsm)
  • geophysics
  • web service
  • geomorphology
  • geologic
  • environmental
  • engineering geology
  • geology
  • dggs
  • apoon pass
  • surficial
  • erosion
  • kulmogon slough
  • little kotlik river
  • flood
  • kotlik
  • geotechnical
  • water
  • kotlik river
  • surficial geology
  • geological process
  • hazards
  • emergency preparedness
  • raster image
  • hydrology
  • surface
  • geologic hazards
  • surface water
  • remote sensing

Topics

  • Local Government

Categories