Aeroradiometric thorium map
Description
Thorium map (cell size 50 m x 50 m) interpolated from aeroradiometric low flight data as a colour surface map. The data is based on low-flight measurements made by GTK throughout Finland, which were carried out in 1973-2007. The flight altitude was about 40 metres, the distance between the aerodromes was 200 metres, the flight lines travel from north to south or east to west based on the main geological direction, and the distance between the measuring points on the flight lines was about 50 metres.
Resources
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https://www.avoindata.fi/data/dataset/375a6981-9c35-476b-9886-1fdafc939091/resource/412b11ea-dd93-4207-805d-04ea3c8e01b9 |