Aero-electromagnetic real component map

A real component map of aero-electromagnetic low-flight data (cell size 50 m x 50 m) as greyscale and colour surface map. The data is based on low-flight measurements carried out by GTK throughout Finland in 1973-2007. The flight altitude was approximately 40 metres, the distance between the flight lines mainly 200 metres, the flight lines running from north to south or east to west based on the main geological orientation, and the distance between the measuring points on the flight lines was approximately 50 metres.