SEAI Geothermal Atlas modelled subsurface temperatures at 1,000m depth in degrees Celcius. The borehole temperature map at 1,000m depth has been modelled from measured and calculated temperatures in 72 boreholes in counties throughout the Republic of Ireland and Northern Ireland. The modelled data have been produced from boreholes that reached 1,000m together with temperatures calculated from geothermal gradients in boreholes that reached 300m.

SEAI Geothermal Atlas modelled subsurface temperatures at 5,000m depth in degrees Celcius. The borehole temperature map at 5,000m depth has been modelled with temperatures calculated only from geothermal gradients in boreholes that reached 500m. The unavailability of data at depths below 2,500m means the data used in this map are of necessity only an indication of the possible temperatures that may be encountered at this depth.

SEAI Geothermal Atlas modelled subsurface temperatures at 10m depth in degrees Celcius.

SEAI Geothermal Atlas modelled subsurface temperatures at 500m depth in degrees Celcius. The borehole temperature map at 500m depth has been modelled from measured and calculated temperatures in 75 boreholes in counties throughout the Republic of Ireland and Northern Ireland. The modelled data have been produced from boreholes that reached 500m, together with temperatures calculated from geothermal gradients in boreholes that reached 300m.

SEAI Geothermal Atlas modelled subsurface temperatures at 2,500m depth in degrees Celcius. The borehole temperature map at 2,500m depth has been modelled from 2 measured and 47 calculated temperatures in 49 boreholes in counties throughout the Republic of Ireland and Northern Ireland. The modelled data have been produced from the 2 boreholes that reached 2,500m, together with temperatures calculated from geothermal gradients in boreholes that reached 500m. As most of the temperatures used in this modelling are calculated, more caution must be used in the interpretation.

SEAI Geothermal Atlas modelled subsurface temperatures at 100m depth in degrees Celcius. The borehole temperature map at 100m depth has been modelled from measured temperatures in 94 boreholes in 22 counties throughout the Republic of Ireland and Northern Ireland.