UAV-acquired orthomosaics of Loviisa shoreline outcrops

This dataset contains photogrammetrically generated orthomosaics of shoreline outcrops at Loviisa, South-East Finland. We used a drone to photograph the outcrops from a flight altitude of 20 m. We processed the photographs into theorthomosaics using Agisoft Photoscan software. We used up to 10 ground controlpoints to accurately georeference the orthomosaics. The resulting orthomosaicshave a ground sampling distance of 0.55 cm / pixel.

Coordinate system ETRS:3067, ETRS-TM35FIN and the data is provided as GeoTIFF (.tif) and png files (pngs added 1.3.2023). Note that the KL2 tif original has been split into two png files (KL2_1 and KL2_2).

The photos were taken and processed as part of a Geological Survey ofFinland project, KYT KARIKKO, with funding from Finnish National Nuclear WasteManagement Fund (KYT) during the summer of 2019.

Changelog:

added DEM tiffs in ./dems from the same outcrops along with a reprocessed orthomosaic for OG1 (tifs/OG1_DEM_2024.tif) 11.12.2025

pngs changed to 8-bit 26.5.2023

pngs added 1.3.2023