Photogrammetry-derived orthoimagery and elevation for Saint Paul, Alaska, collected July 22-25, 2021
Description
The State of Alaska Division of Geological & Geophysical Surveys (DGGS) collected low-altitude aerial images from an unmanned aerial vehicle (UAV) from July 22 to 25, 2021 and used Structure-from-Motion (SfM) photogrammetry to produce digital surface models (DSMs) and orthoimagery of North Beach, Polovina Beach, and the City of Saint Paul, Alaska. 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 Professional 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/10.14509/30836).