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About this layerThe data covers all farm business in Northern Ireland. Data is collected directly from farm business through a survey and supplemented with administrative data from the Animal and...
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About this layerNetwork contribution area scores were exported from the SciMAP application outputs within SAGA GIS. The scores were based on inputs from CEH Land cover 2007, Met Office average...
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The Place Names gazetteer contains a geographical index of 336 towns and villages across Northern Ireland. The data was derived from OSNI's 1:250,000 Ireland North mapping. The locations represent...
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The OSNI Large-scale boundaries is a polygon dataset consisting of District Electoral Areasset in 2012. The data has been extracted from OSNI Largescale database and has been topologically...
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The Water Environment (Water Framework Directive) Regulations (Northern Ireland) 2017. The Water (Amendment) (Northern Ireland) (EU Exit) Regulations 2019 ensures that the Water Framework...
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OSNI Open Data 50k Transport Text. The transport layer contains all motorways, A, B, C class and minor roads in Northern Ireland. OSNI 1:50,000 transport layer is a vector dataset providing...
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Fugro were commissioned to undertake a post storm LiDAR survey of the soft sedimentary areas along the north coast of Northern Ireland in March 2022. This survey was to cover the following areas:...
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This table provides the raw data from river monitoring sites including Water Framework Directive monitoring sites. It should be noted that, as the data set is in its raw state, it cannot be used...
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About this layerNetwork contribution area scores were exported from the SciMAP application outputs within SAGA GIS. The scores were based on inputs from CEH Land cover 2007, Met Office average...
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Mid scale vector polygon dataset showing townland boundaries. Published here for OpenData. The OSNI Largescale Townlands is a polygon dataset consisting of the Townland boundaries. Townlands are...
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The Groundwater Regulations (Northern Ireland) 2009 (as amended) provides for authorisation of discharge of a hazardous substance or non-hazardous pollutant to ensure protection of groundwater...
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About this layer: A private water supply is any supply of water intended for human consumption and not provided by the water undertaker appointed under Article 13 of The Water and Sewerage...
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The OSNI Largescale Wards 2012 is a polygon dataset consisting of District Electoral Areas derived from OSNI Largescale. The boundaries were delineated in 2012 under the Local Government...
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OSNI Open Data 50k Transport Points. The transport layer contains all motorways, A, B, C class and minor roads in Northern Ireland. OSNI 1:50,000 transport layer is a vector dataset providing...
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OSNI Open Data 50k Transport Lines. The transport layer contains all motorways, A, B, C class and minor roads in Northern Ireland. OSNI 1:50,000 transport layer is a vector dataset providing...
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A pilot bathymetric LiDAR survey was commissioned in 2021 which mapped the nearshore areas of Dundrum Bay and areas of Carlingford Lough./p>For the pilot bathymetric survey a Rapid Airborne...
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Updated
17 September 2026
SourceLdenLnight Lday Levening LAeq,16hr LAeq,6hr LAeq,18hr Belfast Agglomeration - Railway An area of a territory that has a population exceeding 100,000 people and a population density equal or...
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This shows the location of each of our 50K tiles. The 50K Grid is published here for Open Data and can be used as a reference system for the download of the 50m DTM. The OSNI Largescale grid is...
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This table provides the raw data from river monitoring sites including Water Framework Directive monitoring sites. It should be noted that, as the data set is in its raw state, it cannot be used...
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This table provides the raw data from river monitoring sites including Water Framework Directive monitoring sites. It should be noted that, as the data set is in its raw state, it cannot be used...