📋 Tender Overview
The Tellus survey is undertaking the final phases of a national airborne survey over counties Kerry and Clare this year. When finished, the survey will be complete for the whole country, making Ireland one of the best geophysical mapped countries in the world.
The survey takes off this spring with the two aircraft crossing the skies of counties Kerry and Clare. The aircraft fly at very low altitudes - 60 metres in rural areas - about eight times the height of a two-storey house - and 240 metres in urban areas, to allow them to make accurate measurements. The survey uses two aircraft, which are white, twin propeller planes. They are easily identified by their red tail and black stripe as well as the word SURVEY and registration numbers C-GSGF and C-GSGP written across both sides of the plane.
Tellus is a national mapping programme managed by Geological Survey Ireland, a division of the Department of the Environment, Climate and Communications. The programme is collecting geochemical and geophysical data on rocks, soil, and water across Ireland. To gather this data, scientific equipment is fitted to a plane which flies in a grid pattern. In 2025, the survey planes will be based at Shannon airport under permit as approved by the Irish Aviation Authority.