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  • Major Railway Lday

    Publisher
    OpenDataNI
    Updated
    9 September 2025
    Source LdenLnight Lday Levening LAeq,16hr LAeq,6hr LAeq,18hr Major Railway Those which have more than 30,000 train passages per year (for mapping rounds other than Round 1)The day-evening-night...
  • Farm Census District Electoral Area 2015

    Publisher
    OpenDataNI
    Updated
    21 March 2022
    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...
  • Groundwater Dependent Terrestrial Ecosystems

    Publisher
    OpenDataNI
    Updated
    5 June 2021
    Further information is available at https://www.daera-ni.gov.uk/sites/default/files/publications/doe/groundwater-dependent-terrestrial-ecosystems.PDF
  • OSNI Open Data - BenchMarks - Height

    Publisher
    OpenDataNI
    Updated
    8 July 2026
    OSNI Benchmark data consists of point data giving the location of the points, along with the associated text which shows the height value. Bench marks are shown in metres above mean sea level....
  • Groundwater Drinking Water Protected Areas (DWPA's)

    Publisher
    OpenDataNI
    Updated
    5 June 2021
    Groundwater Drinking Water Protected Areas (DWPA's) submitted as part of the Water Framework Directive (WFD) 2nd cycle reporting in 2016. The extent of each protected area was created by NIEA Land...
  • Register of Private Water Supplies in Northern Ireland (30/03/2021)

    Publisher
    OpenDataNI
    Updated
    8 July 2026
    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...
  • Derg And Mourne Network Contribution

    Publisher
    OpenDataNI
    Updated
    7 August 2021
    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...
  • OSNI Open Data - Largescale Boundaries - NI Outline

    Publisher
    OpenDataNI
    Updated
    8 July 2026
    The OSNI Largescale NI Outline is a polygon dataset consisting of the land area of Northern Ireland. The data has been derived from OSNI Largescale and has been topologically cleansed and...
  • Probe Metrics

    Publisher
    OpenDataNI
    Updated
    17 September 2026
    The multiparameter sonde has been deployed on a buoy by NIEA’s Freshwater Monitoring and Assessment Team as part of long term, high frequency water quality monitoring project.  It records water...
  • River Water Quality Monitoring 1990 to 2018 - Conductivity

    Publisher
    OpenDataNI
    Updated
    8 July 2026
    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...
  • OSNI Open Data - 50K Boundaries - Parliamentary Constituencies

    Publisher
    OpenDataNI
    Updated
    8 July 2026
    OSNI 50k Parliamentary Constituencies 2008. Published here for OpenData. By download or use of this dataset you agree to abide by the LPS Open Government Data Licence. The boundaries were...
  • OSNI Open Data - 50K Boundaries - Wards (1993)

    Publisher
    OpenDataNI
    Updated
    8 July 2026
    Mid scale vector polygon dataset showing Ward boundaries from 1993. Published here for OpenData. By download or use of this dataset you agree to abide by the LPS Open Government Data Licence. This...
  • OSNI Open Data - 50K Boundaries - NI Outline

    Publisher
    OpenDataNI
    Updated
    8 July 2026
    Mid scale vector polygon dataset of NI Outline. Published here for OpenData. By download or use of this dataset you agree to abide by the LPS Open Government Data Licence.Please Note for Open Data...
  • 2021 NI 3D Coastal Survey - Pilot Bathymetric LiDAR Survey - Digital Terrain Model

    Publisher
    OpenDataNI
    Updated
    8 July 2026
    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...
  • River Water Quality Monitoring 1990 to 2018 - Alkalinity

    Publisher
    OpenDataNI
    Updated
    8 July 2026
    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...
  • Water Framework Directive 2nd Cycle Interim Status

    Publisher
    OpenDataNI
    Updated
    11 December 2021
    This file contains the 2018 overall surface water body status, reported to Europe as a 2nd Cycle interim classification for Water Framework Directive in 2018. It contains the following surface...
  • Surface Water Bodies Status 2015

    Publisher
    OpenDataNI
    Updated
    4 December 2021
    Classification status for surface water bodies (river, lakes, coastal and transitional) submitted as part of Water Framework Directive reporting in 2016. This file also contains the 2021...
  • Quoile Network Contribution

    Publisher
    OpenDataNI
    Updated
    8 July 2026
    Network 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 rainfall and 5...
  • Probe Metrics

    Publisher
    OpenDataNI
    Updated
    17 September 2026
    The field probe has been deployed by NIEA’s Freshwater Monitoring and Assessment team as part of a long term, high frequency water quality monitoring project.  It records Dissolved Oxygen...
  • Major Roads Lden

    Publisher
    OpenDataNI
    Updated
    17 September 2026
    Source Lden Lnight Lday Levening LAeq,16hr Major RoadsThose which have more than three million vehicle passages a year (for mapping rounds other than Round 1)The day-evening-night level indicator...