This dataset is published as Open Data.OS Terrain® 50 is an open height dataset of contours with spot heights, breaklines, coastline, lakes, ridges and formlines for Great Britain.What OS Terrain 50 provides you withModel wind direction and lines of sightMake better decisions about where to locate wind turbines and mobile phone masts. OS Terrain 50 lets you model wind direction and lines of sight at your desk, meaning fewer site visits.Plan landscape defencesGet the bigger picture about flood risk, soil erosion and pollution. By showing steep hillside gradients, OS Terrain 50 helps you plan flood defences and safeguard the landscape.More engaging mapsWith the contours version of OS Terrain 50, you can shade in hills to show their height. This extra sense of depth is ideal for walking maps and apps.Surface model entire landscapesGet an accurate, uncluttered view of the terrain with the grid version of OS Terrain 50. Its 50 metre post spacing gives you a surface model of the entire landscape, including major roads, large lakes and estuaries.Take account of tidesThe contours dataset also includes mean high and low water boundaries.

This dataset is published as Open Data.OS Terrain® 50 is an open height dataset of contours with spot heights, breaklines, coastline, lakes, ridges and formlines for Great Britain.What OS Terrain 50 provides you withModel wind direction and lines of sightMake better decisions about where to locate wind turbines and mobile phone masts. OS Terrain 50 lets you model wind direction and lines of sight at your desk, meaning fewer site visits.Plan landscape defencesGet the bigger picture about flood risk, soil erosion and pollution. By showing steep hillside gradients, OS Terrain 50 helps you plan flood defences and safeguard the landscape.More engaging mapsWith the contours version of OS Terrain 50, you can shade in hills to show their height. This extra sense of depth is ideal for walking maps and apps.Surface model entire landscapesGet an accurate, uncluttered view of the terrain with the grid version of OS Terrain 50. Its 50 metre post spacing gives you a surface model of the entire landscape, including major roads, large lakes and estuaries.Take account of tidesThe contours dataset also includes mean high and low water boundaries.

This dataset is published as Open DataAn open dataset of all Unique Street Reference Numbers (USRNs) within OS MasterMap Highways Network, with an associated simplified line geometry representing the geographic extent of each USRN.What OS Open USRN provides you with:Essential identifiers for streetsOur Open USRN product contains USRNs across GB. They are the authoritative identifier assigned to and uniquely identifying streets and are essential for managing Great Britain's Highways. Once its allocated to a street record, a USRN will never change or be reused.Authoritative sourceThe USRNs in OS Open USRN are allocated by Highway or Road Authorities and Highway Bodies, under their statutory responsibility to maintain this information. This means you can have confidence you’re accessing an authoritative source of these identifiers.Complete USRN dataAll USRNs present in OS MasterMap Highways Network, are also included in this product – so you can be sure you’re not missing out.Share and link dataOS Open USRN will enable you to start sharing and linking together information about USRNs which you can visualise with a location.

This dataset is published as Open DataAn open dataset of all Unique Street Reference Numbers (USRNs) within OS MasterMap Highways Network, with an associated simplified line geometry representing the geographic extent of each USRN.What OS Open USRN provides you with:Essential identifiers for streetsOur Open USRN product contains USRNs across GB. They are the authoritative identifier assigned to and uniquely identifying streets and are essential for managing Great Britain's Highways. Once its allocated to a street record, a USRN will never change or be reused.Authoritative sourceThe USRNs in OS Open USRN are allocated by Highway or Road Authorities and Highway Bodies, under their statutory responsibility to maintain this information. This means you can have confidence you’re accessing an authoritative source of these identifiers.Complete USRN dataAll USRNs present in OS MasterMap Highways Network, are also included in this product – so you can be sure you’re not missing out.Share and link dataOS Open USRN will enable you to start sharing and linking together information about USRNs which you can visualise with a location.

In the OS NGD Boundaries Collection, the mean high water (springs) mark is shown to the normal tidal limit (NTL). Areas of salt marsh, mudflats and so on often have extremely complicated tide lines. For ease of digitising and to reduce data volumes, mean high water may be generalised in these areas (not Scotland). The mean high water (springs) mark is represented in the OS NGD Boundaries Collection by a polyline feature. The mean high water (springs) mark is subject to continuous change, but the captured alignment of a tide line is a snapshot on one day. It is not practical to revise tide lines frequently.

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https://www.ordnancesurvey.co.uk/products/boundary-line#technical

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Source:

https://osdatahub.os.uk/downloads/open/BoundaryLine

Licence:

Contains public sector information licensed under the Open Government Licence v3.0.

https://www.nationalarchives.gov.uk/doc/open-government-licence/version/3/

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The OS MasterMap Imagery Layer is a maintained seamless digital dataset of high-quality 24-bit colour orthorectified aerial photography of Great Britain. It provides vital information that cannot be gained from mapping alone, allowing identification and monitoring of features such as road markings, trees, pipe networks, paths and land surface. The imagery is colour balanced and fully orthorectified, meaning that it accurately reflects the position of features at ground level without distortion. This also ensures accurate alignment with all the other layers in the OS MasterMap family and customer data.

Archaeologically Significant Built Heritage in Ireland. Published by Department of Tourism, Culture, Arts, Gaeltacht, Sport and Media. Available under the license Creative Commons Attribution 4.0 (CC-BY-4.0).This contains records taken from the Archaeological Survey of Ireland (ASI) dataset, updated in 2018 and published from the National Monuments Service Sites and Monuments Record. The ASI has focused on recording monuments dating from before AD 1700, along with more recent sites selected according to their interest or merit. Locations of monuments within 2km of the coastline were extracted from the ASI dataset by Land Use Consultants (LUC).

The records were downloaded from the data source URL in CSV format. The table included latitude/longitude locations for each record. The table was converted into ESRI shapefile and the records within the 2km coastal zone were extracted.

Since its inception in 1963, the Archaeological Survey of Ireland (ASI) has focused on recording monuments dating from before AD 1700, along with more recent sites selected according to their interest or merit. A Sites and Monuments Record (SMR) was issued for all counties in the State between 1984 and 1992. The SMR is a manual containing a numbered list of all certain and possible monuments accompanied by 6-inch Ordnance Survey maps (at a reduced scale). An Urban Archaeology Survey was completed in 1995 and contained reports on historic towns dating to before AD 1700 with a view to delineating zones of archaeological potential. Both the SMR and the Urban Archaeological Survey reports were issued to all planning authorities. The SMR formed the basis for issuing the Record of Monuments and Places (RMP) - the statutory list of recorded monuments established under Section 12 of the National Monuments (Amendment) Act 1994. The RMP was issued for each county between 1995 and 1998 in a similar format to the existing SMR. However, the RMP differs from the earlier lists in that, as defined in the Act, only monuments with known locations or places where there are believed to be monuments are included. The large archive and supporting database are managed by the National Monuments Service and the records are continually updated and supplemented as additional monuments are discovered.

Please note that the centre point of each record is not indicative of the geographic extent of the monument. The existing point centroids were digitised relative to the OSI 6-inch mapping and the move from this older IG-referenced series to the larger-scale ITM mapping will necessitate revisions. The accuracy of the derived ITM co-ordinates is limited to the OS 6-inch scale and errors may ensue should the user apply the co-ordinates to larger scale maps. Records that do not refer to 'monuments' are designated 'Redundant record' and are retained in the archive as they may relate to features that were once considered to be monuments but which on investigation proved otherwise. Redundant records may also refer to duplicate records or errors in the data structure of the Archaeological Survey of Ireland....

Definition Extract of Ordnance Survey's Code-Point® Open product filtered for London Borough of Barnet coverage. Data has been processed from the .csv schema filtering on the administrative district code, with administrative district and ward names appended for ease of use Postcodes do not have an exact match to administrative boundaries, see the Ordnance Survey product support page for full definition. Purpose These datasets have been created as general resource for the council. The information is sourced from Ordnance Survey Open Data products and may be used more widely subject to the Open Government Licence (v3). Disclaimer This dataset is not the primary source and may not reflect the latest version or scope of the original product. You should assess whether using the original product directly is more appropriate for your purpose. Acknowledgements Contains OS data © Crown copyright and database right 2024 Contains Royal Mail data © Royal Mail copyright and Database right 2024 Contains National Statistics data © Crown copyright and database right 2024

This file contains the digital vector boundaries for Covid Infection Survey Geography, in the United Kingdom, as at December 2020.The boundaries available are: (BGC) Generalised (20m) - clipped to the coastline (Mean High Water mark).Contains both Ordnance Survey and ONS Intellectual Property Rights.

REST URL of Feature Access Service – https://services1.arcgis.com/ESMARspQHYMw9BZ9/arcgis/rest/services/Covid_Infection_Survey_Dec_2020_UK_BGC/FeatureServerREST URL of WFS Server –https://dservices1.arcgis.com/ESMARspQHYMw9BZ9/arcgis/services/Covid_Infection_Survey_Dec_2020_UK_BGC/WFSServer?service=wfs&request=getcapabilitiesREST URL of Map Server –https://services1.arcgis.com/ESMARspQHYMw9BZ9/arcgis/rest/services/Covid_Infection_Survey_Dec_2020_UK_BGC/MapServer

This dataset is from the Ordnance Survey and it provides a representation of the hierarchy of administrative and electoral boundaries for GB (England, Scotland and Wales). The product is part of the new OS Open products suite and is designed to be used with other OpenData sets.The dataset is made up of 18 layers which are grouped in their respective categories. It contains all levels of electoral and administrative boundaries, from district, wards, civil parishes (or communities) up to parliamentary and assembly constituencies. The layers can be grouped as followed:Administrative Boundaries• Mean high water (GB)• Country (GB)• Historic European regions (GB)• Historic counties (GB)• Ceremonial counties (GB)• District, Metropolitan district, Unitary authority (GB)• Civil parish and community (GB)• Ward (district, unitary, metropolitan, London borough) (England, Scotland)• English region (England)• County (England)• Community (Wales)Electoral Boundaries• Westminster constituencies (GB)• Scottish and Welsh constituency• Scottish and Welsh electoral region• Polling districts (England)• County electoral division (England)• Unitary electoral division (England and Wales)• Greater London Authority Assembly constituenciesThe currency of this data is 04/2022 and the coverage of this service is GB.The map projection is British National Grid.

This file contains the digital vector boundaries for Local Skills Improvement Plan Areas, in England, as at August 2023.The boundaries available are: (BFC) Full resolution - clipped to the coastline (Mean High Water mark).Contains both Ordnance Survey and ONS Intellectual Property Rights.

REST URL of Feature Access Service – https://services1.arcgis.com/ESMARspQHYMw9BZ9/arcgis/rest/services/Local_Skills_Improvement_Plan_Areas_August_2023_Boundaries_EN_BFC/FeatureServerREST URL of WFS Server –https://dservices1.arcgis.com/ESMARspQHYMw9BZ9/arcgis/services/Local_Skills_Improvement_Plan_Areas_August_2023_Boundaries_EN_BFC/WFSServer?service=wfs&request=getcapabilitiesREST URL of Map Server –https://services1.arcgis.com/ESMARspQHYMw9BZ9/arcgis/rest/services/Local_Skills_Improvement_Plan_Areas_August_2023_Boundaries_EN_BFC/MapServer

These polygons depict the part of the shore or beach which lies between the Mean Low Water Mark and Mean High Water Mark.

The High Water Mark digital dataset is derived from relevant 6 inch and 25 inch Ordnance Maps. The alterations are in accordance with the Boundary Survey Acts Ireland, approved by the Chief Boundary Surveyor and signed off in Privy Council Orders. The dataset also includes changes to HWM brought about by subsequent Maritime Orders. This dataset is currently under review.

This dataset is provided by Tailte Éireann – National Mapping Division.

This file contains the digital vector boundaries for Regions, in England, as at 31 December 2018. The BFC boundaries are full resolution - clipped to the coastline (Mean High Water mark). Contains both Ordnance Survey and ONS Intellectual Property Rights.REST URL of ArcGIS for INSPIRE View Service – https://services1.arcgis.com/ESMARspQHYMw9BZ9/arcgis/rest/services/Regions_(December_2018)_Full_Clipped_EN/MapServerREST URL of ArcGIS for INSPIRE Feature DownloadService – https://dservices1.arcgis.com/ESMARspQHYMw9BZ9/arcgis/services/Regions_December_2018_Full_Clipped_EN/WFSServer?service=wfs&request=getcapabilitiesREST URL of Feature Access Service – https://services1.arcgis.com/ESMARspQHYMw9BZ9/arcgis/rest/services/Regions_December_2018_Full_Clipped_EN_2022/FeatureServer

This file contains the digital vector boundaries for Regions in England as at December 2024.The boundaries available are: (BUC) Ultra generalised (500m) - clipped to the coastline (Mean High Water mark).Contains both Ordnance Survey and ONS Intellectual Property Rights.

REST URL of Feature Access Service – https://services1.arcgis.com/ESMARspQHYMw9BZ9/arcgis/rest/services/Regions_December_2024_Boundaries_EN_BUC/FeatureServerREST URL of WFS Server –https://dservices1.arcgis.com/ESMARspQHYMw9BZ9/arcgis/services/Regions_December_2024_Boundaries_EN_BUC/WFSServer?service=wfs&request=getcapabilitiesREST URL of Map Server –https://services1.arcgis.com/ESMARspQHYMw9BZ9/arcgis/rest/services/Regions_December_2024_Boundaries_EN_BUC/MapServer

This file contains the digital vector boundaries for Regions, in England, as at 31 December 2018. The BUC boundaries are ultra generalised (500m) - clipped to the coastline (Mean High Water mark). Contains both Ordnance Survey and ONS Intellectual Property Rights.

How would you define the boundaries of a town or city in England and Wales in 2016?

Maybe your definition would be based on its population size, geographic extent or where the industry and services are located. This was a question the ONS had to consider when creating a new statistical geography called Towns and Cities.

In reality, the ability to delimit the boundaries of a city or town is difficult!

Major Towns and Cities

The new statistical geography, Towns and Cities has been created based on population size and the extent of the built environment. It contains 112 towns and cities in England and Wales, where the residential and/or workday population > 75,000 people at the 2011 Census. It has been constructed using the existing Built-Up Area boundary set produced by Ordnance Survey in 2011.

This swipe map shows where the towns and cities and built-up areas are different. Just swipe the bar from left to right.

The blue polygons are the towns and cities and the purple polygons are the built-up areas.

The primary objective from this project was to acquire historical shoreline information for all of the Northern Ireland coastline. Having this detailed understanding of the coast’s shoreline position and geometry over annual to decadal time periods is essential in any management of the coast.The historical shoreline analysis was based on all available Ordnance Survey maps and aerial imagery information. Analysis looked at position and geometry over annual to decadal time periods, providing a dynamic picture of how the coastline has changed since the start of the early 1800s.Once all datasets were collated, data was interrogated using the ArcGIS package – Digital Shoreline Analysis System (DSAS). DSAS is a software package which enables a user to calculate rate-of-change statistics from multiple historical shoreline positions. Rate-of-change was collected at 25m intervals and displayed both statistically and spatially allowing for areas of retreat/accretion to be identified at any given stretch of coastline.The DSAS software will produce the following rate-of-change statistics:Net Shoreline Movement (NSM) – the distance between the oldest and the youngest shorelines.Shoreline Change Envelope (SCE) – a measure of the total change in shoreline movement considering all available shoreline positions and reporting their distances, without reference to their specific dates.End Point Rate (EPR) – derived by dividing the distance of shoreline movement by the time elapsed between the oldest and the youngest shoreline positions.Linear Regression Rate (LRR) – determines a rate of change statistic by fitting a least square regression to all shorelines at specific transects.Weighted Linear Regression Rate (WLR) - calculates a weighted linear regression of shoreline change on each transect. It considers the shoreline uncertainty giving more emphasis on shorelines with a smaller error.The end product provided by Ulster University is an invaluable tool and digital asset that has helped to visualise shoreline change and assess approximate rates of historical change at any given coastal stretch on the Northern Ireland coast.

This file contains the digital vector boundaries for Nomenclature of Territorial Units for Statistics Level 1 , in the United Kingdom, as at January 2018. The boundaries are full resolution - clipped to the coastline (Mean High Water mark). Contains both Ordnance Survey and ONS Intellectual Property Rights.REST URL of ArcGIS for INSPIRE View Service – https://services1.arcgis.com/ESMARspQHYMw9BZ9/arcgis/rest/services/NUTS_Level_1_(January_2018)_FCB_in_the_United_Kingdom/MapServerREST URL of ArcGIS for INSPIRE Feature DownloadService – https://dservices1.arcgis.com/ESMARspQHYMw9BZ9/arcgis/services/NUTS_Level_1_January_2018_Full_Clipped_Boundaries_in_the_United_Kingdom/WFSServer?service=wfs&request=getcapabilities

This file contains the digital vector boundaries for Output Areas in England and Wales as at 31 December 2011. The boundaries available are:Full resolution - clipped to the coastline (Mean High Water mark); Contains both Ordnance Survey and ONS Intellectual Property Rights. Download File SizesFull resolution - clipped to the coastline (665 MB)REST URL of ArcGIS for INSPIRE View Service – https://services1.arcgis.com/ESMARspQHYMw9BZ9/arcgis/rest/services/Output_Areas_(Dec_2011)_Boundaries_EW_(BFC)/MapServerREST URL of ArcGIS for INSPIRE Feature DownloadService – https://dservices1.arcgis.com/ESMARspQHYMw9BZ9/arcgis/services/Output_Areas_Dec_2011_Boundaries_EW_BFC_/WFSServer?service=wfs&request=getcapabilitiesREST URL of Feature Access Service – https://services1.arcgis.com/ESMARspQHYMw9BZ9/arcgis/rest/services/Output_Areas_Dec_2011_Boundaries_EW_BFC_2022/FeatureServer