​​​​​​​​​​​​​​​​​​​​​​​The Tellus survey is a national programme to gather geochemical and geophysical data across Ireland – in other words, to examine the chemical and physical properties of our soil, rocks and water.

Tellus is undertaken by the Geological Survey Ireland and is funded by the Department of Communications, Climate Action and Environment. All data from Tellus is made available free of charge online.

Tellus involves two types of surveying – airborne geophysical surveying using a low-flying aircraft and ground-based geochemical surveying of soil, stream water and stream sediment.

To date, Tellus surveying has been completed in Northern Ireland (2004–2008) and the border region of Ireland (2011–2013). Tellus airborne surveying has been completed in the north midlands region of Ireland (2014–2015), the eastern midlands region (2015), and most recently the west of Ireland (2016-2017). The Tellus airborne geophysical survey has now mapped 60% of the country.

The Tellus aircraft has completed surveying in Limerick and north Tipperary. Surveying is still ongoing in the west Cork region and is expected to be complete by May 2019. From late May/June until late autumn the Tellus aircraft will move to the south east of Ireland; into counties Carlow, Wexford, Wicklow and neighbouring parts of south Kildare, south east Kilkenny and Waterford.

Tellus has established a Product Development workstream in order to produce more focused, user-centric data products, the need for which has been identified through stakeholder consultation, independent reviews of Tellus and government policy.   Product development is undertaken under five main themes: Mineral pro​spe​ctivity, smart agriculture, environment and health, climate action and education.

Find out more about our ground and airborne field operations and view our data products.

The ​Tellus survey aircraft  is due to recommence flying over counties Limerick, North Tipperary an​​d West Cork from February until May 2019 (weather permitting). ​​​ 

Details of plans for the geochemistry survey for 2019 will follow soon.​​

Tellus collects geochemical and geophysical data that will inform the management of Ireland’s environment and natural resources.

Tellus undertakes research with a range of collaborators in order to maximise the societal and economic benefits of the geochemical and geophysical data. Explore the themes to see how Tellus​ data is being used to benefit society. us what you think about the website so we can improve its contentGSI website online feedback survey to understand and improve users online experience27/03/2019 00:00:00,-north-Tipperary--west-Cork.aspxTellus Airborne Survey 2019 recommences over Limerick, north Tipperary & west Cork.The Tellus Survey – a nationwide programme of the Geological Survey Ireland, which collects geochemical and geophysical data on rocks, soil and water across Ireland – is resuming its flights for 2019 over counties Limerick, north Tipperary and west Cork. 06/03/2019 00:00:00 Geochemistry Instructional Videos25/09/2018 23:00:00 Notes06/09/2018 23:00:00