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Different aquifers have differing abilities to store and transmit water. Based on the hydrogeological characteristics and on the value of the groundwater resource, GSI has classified Ireland’s land surface into aquifer categories. GSI Aquifer classes are divided into three...
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Different aquifers have differing abilities to store and transmit water. Based on the hydrogeological characteristics and on the value of the groundwater resource, GSI has classified Ireland’s land surface into aquifer categories. GSI Aquifer classes are divided into three...
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Groundwater is the water stored below ground in tiny cracks in the rock or in very small spaces between sand grains. It comes from rainwater that soaks into the ground into an aquifer. An aquifer is a body of rock and/or sediment that holds groundwater. The process of rain...
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Karst is a landscape with distinctive landforms that develop on rock types that are readily dissolved by water. In Ireland, karstification mostly occurs in limestone regions. This karst dataset contains mapped karst landforms in Ireland including: boreholes, caves, dry...
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The Quaternary geology of Ireland – Sediments Map is a representation of the surficial geology of Ireland at a scale of 1 to 50,000.
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This dataset is the GSI’s legacy borehole database, compiled over many years from many sources. This dataset is available while we make significant improvements to our borehole holdings.
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The Regional Ocean Modeling System (ROMS) is a free-surface, terrain-following, primitive equations ocean model widely used by the scientific community for a diverse range of applications. The operational Northeast Atlantic (NEATL) model is an implementation of the ROMS model...
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Data on the offshore geologic intrusive bodies around Ireland. An intrusion is liquid rock that forms under Earth's surface. Magma from under the surface is slowly pushed up from deep within the earth into any cracks or spaces it can find, sometimes pushing existing country...
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The INtegrated Mapping FOr the Sustainable Development of Ireland's MArine Resource (INFOMAR) programme is a joint venture between the Geological Survey of Ireland (GSI) and the Marine Institute (MI). The programme is the successor to the Irish National Seabed Survey (INSS)...
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The INtegrated Mapping FOr the Sustainable Development of Ireland's MArine Resource (INFOMAR) programme is a joint venture between the Geological Survey of Ireland (GSI) and the Marine Institute (MI). The programme is the successor to the Irish National Seabed Survey (INSS)...
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Location of marine basin divisions in the North Atlantic around Ireland. A geological basin is a large low-lying area. It is often below sea level. There are five designated basins and each basin represents a large submarine depression of a generally circular, elliptical or...
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Bathymetry water depth survey including Esri raster Grid and contour vector lines at 1m intervals. Data coverage includes Lough Feeagh in the Burrishoole catchment Co. Mayo Ireland. Data collected from 2002 survey. Data collected using standard echosounder device gear mounted...
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Physiographic maps are cartographic representations of the broad-scale physical landscape units of a region, and physiographic units consist of physical regions showing internal uniformity with respect to one or more environmental attributes, which are clearly differentiated...
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This dataset contains a GIS vector polyline of 11,770 2D seismic survey lines undertaken in seas around Ireland. Data includes contractor, line, survey Id, company, survey area name, project code and prefix details. A 2D survey typically contains numerous lines acquired...
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Bathymetry water depth survey including Esri raster Grid and contour vector lines at 1m intervals. Data coverage includes Lough Furnace in the Burrishoole catchment Co. Mayo Ireland. Data collected from 2003 survey. Data collected using standard echosounder device gear mounted...
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The national Groundwater Recharge Map depicts estimated recharge to the deep groundwater system, i.e. groundwater that can be tapped as the sustainable resource. The main hydrogeological controls on groundwater recharge include subsoil permeability, subsoil thickness,...
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Tectonic elements in the Bay of Biscay.
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This dataset contains a complete coverage for all mapped and digitised striae features for the island of Ireland. The Subglacial Striae is part of the Subglacial Landform group. The map forms part of the GSI Quaternary Map series. Data recorded on the maps includes the...
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This data represents a seamless bedrock geological dataset encompassing Rep of Ireland and parts of Northern Ireland at the 500,000 scale. This dataset is part of the ‘Bedrock Geology 500K Series’ (seamless bedrock geological dataset encompassing Rep of Ireland and parts of...
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This dataset contains bedrock units created by grouping bedrock formations and members based on their hydrogeological properties and other factors.