Published April 26, 2021 | Version 1.0.0
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Getaberget Drone Orthomosaic Dataset

  • 1. Geological Survey of Finland


We used drones to photograph the outcrops at Getaberget, Åland Islands, Finland
from a flight altitude of 20 m. We processed the photographs into the
orthomosaics using Agisoft Photoscan software. We used 5 to 10 ground control
points to accurately georeference the orthomosaics. The resulting orthomosaics
have a ground sampling distance of 0.55 cm / pixel.

Coordinate system ETRS:3067, ETRS-TM35FIN.

Filetype is GeoTIFF.

The orthomosaics were used as base maps onto which fracture traces visible on
the outcrop surfaces were digitized. Digitized traces are found here:

The field mapping and photos were taken as part of a Geological Survey of
Finland project, KYT KARIKKO, with funding from Finnish National Nuclear Waste
Management Fund (KYT) during the summer of 2020.


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