85 datasets found
  1. GB Topographic

    • hub.arcgis.com
    Updated Apr 1, 2019
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    Esri UK (2019). GB Topographic [Dataset]. https://hub.arcgis.com/maps/2d5a797a822b462e9aa5a6bdbf34bf2f
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    Dataset updated
    Apr 1, 2019
    Dataset provided by
    Esrihttp://esri.com/
    Authors
    Esri UK
    Area covered
    Description

    This style provides a detailed vector basemap for Great Britain using Open Data featuring the classic Esri topographic map style designed for use with a the GB Hillshade serviceThe vector tile layer is a similar style to the Esri World Topographic Map which is provided in Web Mercator projection.This service contains data supplied by the Ordnance Survey in their Zoomstack product (data last updated December 2024)The map projection is British National Grid.Customise this MapBecause this is a vector tile layer, you can customise the map to change its content and symbology. You are able to turn on and off layers and change their symbols. You can open this style in the vector tile style editor, make your changes and save a copy of your modified style to use yourself.Please send any feedback to VectorTiles@esriuk.com

  2. E

    Compact Airborne Spectrographic Images and LIDAR terrain maps of England and...

    • edmed.seadatanet.org
    • bodc.ac.uk
    nc
    Updated Oct 19, 2009
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    Environment Agency Head Office (2009). Compact Airborne Spectrographic Images and LIDAR terrain maps of England and Wales [Dataset]. https://edmed.seadatanet.org/report/878/
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    ncAvailable download formats
    Dataset updated
    Oct 19, 2009
    Dataset authored and provided by
    Environment Agency Head Office
    License

    https://vocab.nerc.ac.uk/collection/L08/current/LI/https://vocab.nerc.ac.uk/collection/L08/current/LI/

    Time period covered
    1991 - Present
    Area covered
    Description

    LIDAR is an airborne terrain mapping system, which uses a laser to measure the distance between the aircraft and the ground. This technique results in the production of cost effective terrain maps with a height accuracy of 10 to 15cm. Typically with spot heights between 1 to 4 metres spatially on the land surface. CASI is used to provide information on the colour of the environment. It is designed to provide a flexible system which is easy to transport and straightforward to install and operate in small aircraft. It can be used for detailed studies of the spectral characteristics of ground or water targets, which are imaged instantaneously in a large number of spectral wavebands (up to 288), covering the visible and near infra-red regions of the spectrum, between 430 nm and 870 nm. Spatial resolution can be varied from one to ten metres, depending on the flying altitude and lens configuration. New LIDAR and CASI data sets are being gathered from parts of England and Wales all the time. For details on coverage and extent contact the National Centre.

  3. England 1m Composite DTM/DSM (Environment Agency)

    • developers.google.com
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    UK Environment Agency, England 1m Composite DTM/DSM (Environment Agency) [Dataset]. https://developers.google.com/earth-engine/datasets/catalog/UK_EA_ENGLAND_1M_TERRAIN_2022
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    Dataset provided by
    Environment Agencyhttps://www.gov.uk/ea
    Time period covered
    Jun 6, 2000 - Apr 2, 2022
    Area covered
    Earth
    Description

    The LIDAR Composite DTM/DSM is a raster terrain model covering ~99% of England at 1m spatial resolution, produced by the UK Environment Agency in 2022. The model contains 3 bands of terrain data: a Digital Terrain Model (DTM), a first return Digital Surface Model (DSM), and a last return DSM. …

  4. a

    LIDAR Composite Digital Terrain Model (DTM) 1m - WMS

    • hub.arcgis.com
    • data.catchmentbasedapproach.org
    Updated Dec 21, 2023
    + more versions
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    Environment Agency (2023). LIDAR Composite Digital Terrain Model (DTM) 1m - WMS [Dataset]. https://hub.arcgis.com/maps/a0eb5fe3e2d142f2a3c30626a3db4d7f
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    Dataset updated
    Dec 21, 2023
    Dataset authored and provided by
    Environment Agency
    Area covered
    Description

    The LIDAR Composite DTM (Digital Terrain Model) is a raster elevation model covering ~99% of England at 1m spatial resolution.The DTM (Digital Terrain Model) is produced from the last or only laser pulse returned to the sensor. We remove surface objects from the Digital Surface Model (DSM), using bespoke algorithms and manual editing of the data, to produce a terrain model of just the surface. Produced by the Environment Agency in 2022, the DTM is derived from a combination of our Time Stamped archive and National LIDAR Programme surveys, which have been merged and re-sampled to give the best possible coverage. Where repeat surveys have been undertaken the newest, best resolution data is used. Where data was resampled a bilinear interpolation was used before being merged. The 2022 LIDAR Composite contains surveys undertaken between 6th June 2000 and 2nd April 2022. Please refer to the metadata index catalgoues which show for any location which survey was used in the production of the LIDAR composite.DEFRA Data Services Platform Metadata URLDefra Network WMS server provided by the Environment Agency

  5. n

    1m resolution LiDAR-derived Digital Terrain/Surface Models (DTMs/DSMs) for...

    • data-search.nerc.ac.uk
    • catalogue.ceda.ac.uk
    Updated Jul 26, 2021
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    (2021). 1m resolution LiDAR-derived Digital Terrain/Surface Models (DTMs/DSMs) for cities of England and Scotland [Dataset]. https://data-search.nerc.ac.uk/geonetwork/srv/search?format=Data%20are%20img%20formatted
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    Dataset updated
    Jul 26, 2021
    Description

    Light Detection and Ranging (LiDAR) data was collected by The Geoinformation Group using LiDAR-equipped survey aircraft for the main urban conurbations of England and Wales (including London, Manchester, Birmingham, Liverpool, Newcastle, Edinburgh and Glasgow) as part of the Cities Revealed project, and made available through the Landmap service. The GeoInformation Group (TGG) has processed the data so that they are available as Digital Terrain Models (ground surface only) and Digital Surface/Elevation Models (the ground and all features on it), both geographic databases with height and surface measurement information in the form of regular grids with intervals of 1 or 2 m. In addition, some First Pass and Last Pass data are available. The First Pass data provides height values for the top of the canopy (i.e. buildings, trees etc.) while the Last Pulse data provides height values for the bottom of the canopy and provides information about the shape of the terrain. The data are available in img format. The Joint Information Systems Committee (JISC) funded Landmap service which ran from 2001 to July 2014 collected and hosted a large amount of earth observation data for the majority of the UK, part of which was elevation data. After removal of JISC funding in 2013, the Landmap service is no longer operational, with the data now held at the NEODC. When using the data please also add the following copyright statement: Cities Revealed © The GeoInformation Group yyyy

  6. n

    Bluesky 5m resolution Digital Terrain Model (DTM) for England and Wales

    • data-search.nerc.ac.uk
    • catalogue.ceda.ac.uk
    Updated Jul 21, 2021
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    (2021). Bluesky 5m resolution Digital Terrain Model (DTM) for England and Wales [Dataset]. https://data-search.nerc.ac.uk/geonetwork/srv/search?orgName=Bluesky
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    Dataset updated
    Jul 21, 2021
    Description

    A Digital Terrain Model (DTM) for most of England and Wales provided by Bluesky and made available via the Landmap service, at 5m resolution. The 5m DTM is a photogrammetrically derived product from stereo aerial photography collected between 1999 and 2008. The aerial photography was captured at a resolution of between 10cm and 25cm. A digital elevation model is a digital model or 3D representation of a terrain's surface and, in contrast to a Digital Surface Model (DSM), represents the bare ground surface without any objects like plants and buildings. The Joint Information Systems Committee (JISC) funded Landmap service which ran from 2001 to July 2014 collected and hosted a large amount of earth observation data for the majority of the UK, part of which was elevation data. After removal of JISC funding in 2013, the Landmap service is no longer operational, with the data now held at the NEODC. When using these data please also add the following copyright statement: © GeoPerspectives supplied by Bluesky yyyy

  7. Data from: LiDAR based Digital Terrain Model (DTM) data for South West...

    • hosted-metadata.bgs.ac.uk
    • cloud.csiss.gmu.edu
    • +3more
    zip
    Updated Apr 29, 2014
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    Natural Environment Research Council (2014). LiDAR based Digital Terrain Model (DTM) data for South West England [Dataset]. https://hosted-metadata.bgs.ac.uk/geonetwork/srv/api/records/e2a742df-3772-481a-97d6-0de5133f4812
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    zipAvailable download formats
    Dataset updated
    Apr 29, 2014
    Dataset provided by
    Natural Environment Research Councilhttps://www.ukri.org/councils/nerc
    NERC EDS Environmental Information Data Centre
    License

    https://eidc.ceh.ac.uk/licences/OGLtellus/plainhttps://eidc.ceh.ac.uk/licences/OGLtellus/plain

    http://eidc.ceh.ac.uk/help/faq/registrationhttp://eidc.ceh.ac.uk/help/faq/registration

    Time period covered
    Jul 1, 2013 - Aug 31, 2013
    Area covered
    Description

    This is a high resolution spatial dataset of Digital Terrain Model (DTM) data in South West England. The DTM along with a Digital Surface Model (DSM) cover an area of 9424 km2 that includes all the land west of Exmouth (i.e. west of circa 3 degrees 21 minutes West). The DTM represents the topographic model (height) of the bare earth. The dataset is a part of outcomes from the Centre for Ecology & Hydrology South West (SW) Project. There is also a Digital Surface Model (DSM) dataset covering the same areas available from the SW project. Full details about this dataset can be found at https://doi.org/10.5285/e2a742df-3772-481a-97d6-0de5133f4812

  8. n

    Land-Form Panorama from DIGIMAP

    • cmr.earthdata.nasa.gov
    Updated Apr 20, 2017
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    (2017). Land-Form Panorama from DIGIMAP [Dataset]. https://cmr.earthdata.nasa.gov/search/concepts/C1214584958-SCIOPS
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    Dataset updated
    Apr 20, 2017
    Time period covered
    Jan 1, 1970 - Present
    Area covered
    Description

    [from EDINA's description of Land-form PANORAMA data: "http://edina.ac.uk/digimap/description/products/panorama.shtml"]

    Land-Form PANORAMA is a digital representation of the contours from Ordnance Survey's 1:50 000 scale Landranger maps. Contours are at 10 metre vertical intervals together with breaklines, lakes, coastline and a selection of spot heights to the nearest metre. Digital contour accuracy values are typically better than 3 metres root mean square error.

    The Ordnance Survey has used the dataset to derive mathematically a digital terrain-model (DTM) dataset. The dataset consists of a grid of height values at 50 metre intervals interpolated from the contour data. Height values are rounded to the nearest metre. Accuracy varies according to the complexity of the terrain, from 2 metres in a hilly rural area to 3 metres in an urban lowland area. This data is only available for downloading to your machine.

    DTM data can be used for terrain analysis of lines of sight and in applications such as visual impact studies, drainage analysis, site planning.

  9. d

    Coastal Topographic Surveys

    • environment.data.gov.uk
    • cloud.csiss.gmu.edu
    Updated Dec 15, 2023
    + more versions
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    Environment Agency (2023). Coastal Topographic Surveys [Dataset]. https://environment.data.gov.uk/dataset/a54738b3-dc19-412f-b700-3aa35a31f158
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    Dataset updated
    Dec 15, 2023
    Dataset authored and provided by
    Environment Agency
    License

    Open Government Licence 3.0http://www.nationalarchives.gov.uk/doc/open-government-licence/version/3/
    License information was derived automatically

    Description

    Coastal Topographic Surveys are height transects that form part of the Anglian Coastal Monitoring Programme. A surveyor using a GNSS (Global Navigation Satellite System) staff will make observations of elevation and usually substrate type at recorded coordinates. This is usually carried out along a fixed transect line, but can be along a grid or, when the staff is mounted to an ATV (All terrain vehicle), a high volume of ‘spot height’ measurements through the survey area. The outputs of this survey are the easting and northing coordinates of each location where a measurement was taken and the elevation in metres above Ordnance Datum (Newlyn). The transect survey data will also contain a chainage position of where along the transects the measurement was taken and a two letter substrate code.

  10. c

    NEXTMap British Digital Terrain 10m resolution (DTM10) Model Data by...

    • catalogue.ceda.ac.uk
    • data-search.nerc.ac.uk
    Updated Sep 16, 2009
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    Intermap Technologies (2009). NEXTMap British Digital Terrain 10m resolution (DTM10) Model Data by Intermap [Dataset]. https://catalogue.ceda.ac.uk/uuid/f984fa9b84f74d47978f67dbb99dcc03
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    Dataset updated
    Sep 16, 2009
    Dataset provided by
    NERC Earth Observation Data Centre (NEODC)
    Authors
    Intermap Technologies
    License

    https://artefacts.ceda.ac.uk/licences/specific_licences/nextmap_eula.pdfhttps://artefacts.ceda.ac.uk/licences/specific_licences/nextmap_eula.pdf

    Time period covered
    Dec 30, 2001 - Oct 12, 2003
    Area covered
    Variables measured
    Height
    Description

    This dataset consists of the Digital Terrain Model 10m resolution data (DTM10) from the NEXTMap British Digital Terrain Model project produced by Intermap. These data have a spatial resolution of 5m and cover the British Isles.

  11. E

    NEXTMap Digital Terrain Model of Great Britain

    • catalogue.ceh.ac.uk
    Updated Dec 10, 2007
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    Intermap (2007). NEXTMap Digital Terrain Model of Great Britain [Dataset]. https://catalogue.ceh.ac.uk/id/803ea9a4-658c-431c-87e6-d0570c12beaa
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    Dataset updated
    Dec 10, 2007
    Dataset provided by
    NERC EDS Environmental Information Data Centre
    Authors
    Intermap
    Area covered
    Description

    5 metre resolution digital elevation model of Great Britain, available as a height model of the bare Earth surface (digital terrain model, DTM) and a height model of natural terrain features (digital surface model). The horizontal accuracy is +/- 2.5m on slopes less than 20 degrees. The vertical accuracy is +/-1.0 m or greater. Data are arranged into Ordnance Survey / British National Grid tiles of 10 x 10 km.

  12. Living England 2022-2023

    • naturalengland-defra.opendata.arcgis.com
    Updated Sep 10, 2024
    + more versions
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    Defra group ArcGIS Online organisation (2024). Living England 2022-2023 [Dataset]. https://naturalengland-defra.opendata.arcgis.com/maps/19aa7b1604434fd7a3b35f2fbfb9c519
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    Dataset updated
    Sep 10, 2024
    Dataset provided by
    Defra - Department for Environment Food and Rural Affairshttp://defra.gov.uk/
    Authors
    Defra group ArcGIS Online organisation
    Area covered
    Description

    Living England is a multi-year project which delivers a broad habitat map for the whole of England, created using satellite imagery, field data records and other geospatial data in a machine learning framework. The Living England habitat map shows the extent and distribution of broad habitats across England aligned to the UKBAP classification, providing a valuable insight into our natural capital assets and helping to inform land management decisions. Living England is a project within Natural England, funded by and supports the Defra Natural Capital and Ecosystem Assessment (NCEA) Programme and Environmental Land Management (ELM) Schemes to provide an openly available national map of broad habitats across England.This dataset includes very complex geometry with a large number of features so it has a default viewing distance set to 1:80,000 (City in the map viewer).Process Description:A number of data layers are used to develop a ground dataset of habitat reference data, which are then used to inform a machine-learning model and spatial analyses to generate a map of the likely locations and distributions of habitats across England. The main source data layers underpinning the spatial framework and models are Sentinel-2 and Sentinel-1 satellite data from the ESA Copernicus programme, Lidar from the EA's national Lidar Programme and collected data through the project's national survey programme. Additional datasets informing the approach as detailed below and outlined in the accompanying technical user guide.Datasets used:OS MasterMap® Topography Layer; Geology aka BGS Bedrock Mapping 1:50k; Long Term Monitoring Network; Uplands Inventory; Coastal Dune Geomatics Mapping Ground Truthing; Crop Map of England (RPA) CROME; Lowland Heathland Survey; National Grassland Survey; National Plant Monitoring Scheme; NE field Unit Surveys; Northumberland Border Mires Survey; Sentinel-2 multispectral imagery; Sentinel-1 backscatter imagery; Sentinel-1 single look complex (SLC) imagery; National forest inventory (NFI); Cranfield NATMAP; Agri-Environment HLS Monitoring; Living England desktop validation; Priority Habitat Inventory; Space2 Eye Lens: Ainsdale NNR, State of the Bog Bowland Survey, State of the Bog Dark Peak Condition Survey, State of the Bog Manchester Metropolitan University (MMU) Mountain Hare Habitat Survey Dark Peak, State of the Bog; Moors for the Future Dark Peak Survey; West Pennines Designation NVC Survey; Wetland Annex 1 inventory; Soils-BGS Soil Parent Material; Met Office HadUK gridded climate product; Saltmarsh Extent and Zonation; EA LiDAR DSM & DTM; New Forest Mires Wetland Survey; New Forest Mires Wetland Survey; West Cumbria Mires Survey; England Peat Map Vegetation Surveys; NE protected sites monitoring; ERA5; OS Open Built-up Areas; OS Boundaries dataset; EA IHM (Integrated height model) DTM; OS VectorMap District; EA Coastal Flood Boundary: Extreme Sea Levels; AIMS Spatial Sea Defences; LIDAR Sand Dunes 2022; EA Coastal saltmarsh species surveys; Aerial Photography GB (APGB); NASA SRT (Shuttle Radar Topography Mission) M30; Provisional Agricultural Land Classification; Renewable Energy Planning Database (REPD); Open Street Map 2024.Attribute descriptions: Column Heading Full Name Format Description

    SegID SegID Character (100) Unique Living England segment identifier. Format is LEZZZZ_BGZXX_YYYYYYY where Z = release year (2223 for this version), X = BGZ and Y = Unique 7-digit number

    Prmry_H Primary_Habitat Date Primary Living England Habitat

    Relblty Reliability
    Character (12) Reliability Metric Score

    Mdl_Hbs Model_Habs Interger List of likely habitats output by the Random Forest model.

    Mdl_Prb Model_Probs Double (6,2) List of probabilities for habitats listed in ‘Model_Habs’, calculated by the Random Forest model.

    Mixd_Sg Mixed_Segment Character (50) Indication of the likelihood a segment contains a mixture of dominant habitats. Either Unlikely or Probable.

    Source Source

    Description of how the habitat classification was derived. Options are: Random Forest; Vector OSMM Urban; Vector Classified OS Water; Vector EA saltmarsh; LE saltmarsh & QA; Vector RPA Crome, ALC grades 1-4; Vector LE Bare Ground Analysis; LE QA Adjusted

    SorcRsn Source_Reason

    Reasoning for habitat class adjustment if ‘Source’ equals ‘LE QA Adjusted’

    Shap_Ar Shape_Area

    Segment area (m2) Full metadata can be viewed on data.gov.uk.

  13. g

    BGS 1:63 360 / 1:50 000 series geological maps

    • gimi9.com
    • metadata.bgs.ac.uk
    • +1more
    Updated May 9, 2024
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    (2024). BGS 1:63 360 / 1:50 000 series geological maps [Dataset]. https://gimi9.com/dataset/uk_bgs-1-63-360-1-50-000-series-geological-maps/
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    Dataset updated
    May 9, 2024
    License

    CC0 1.0 Universal Public Domain Dedicationhttps://creativecommons.org/publicdomain/zero/1.0/
    License information was derived automatically

    Description

    The 1:63 360 / 1:50 000 scale map series are the most useful scale for most purposes. They provide almost complete coverage of onshore Great Britain. The BGS collection of 1:63 360 and 1:50 000 scale maps comprises two map series: - Geological Survey of England and Wales 1:63 360 / 1:50 000 Geological Map Series [New Series]. These maps are based on the Ordnance Survey One-inch New Series topographic basemaps and provide almost complete coverage of England and Wales, with the exception of sheet 180 (Knighton). The quarter-sheets of 1:63 360 Old Series sheets 91 to 110 coincide with sheets 1 to 73 of the New Series maps. These earlier maps often carry two sheet numbers which refer to the Old Series and the New Series. - Geological Survey of Scotland 1:63 360 / 1:50 000 Geological Map Series. These maps are based on the Ordnance Survey First, Second, Third and Fourth editions of the One-inch map of Scotland. The maps used the most recent topographic basemap available at the time. In the Western Isles, one-inch mapping was abandoned and replaced by maps at 1:100 000 scale, which are associated with this series. Sheets were traditionally issued at 1:63 360 scale, with the first 1:50 000 maps appearing in 1972. Sheets at 1:50 000 scale may be either facsimile enlargements of an existing 1:63 360 sheets, or may contain new geology and cartography. The latter bear the additional series designation '1:50 000 series'. Within the Scottish series, new mapping at 1:50 000 scale was split into east and west sheets. For example, the original one-inch sheet 32 became 1:50 000 sheets 32E and 32W. A number of irregular sheets were also introduced with the new 1:50 000 scale mapping. There are a number of irregular special sheets within both series. Geological maps represent a geologist's compiled interpretation of the geology of an area. A geologist will consider the data available at the time, including measurements and observations collected during field campaigns, as well as their knowledge of geological processes and the geological context to create a model of the geology of an area. This model is then fitted to a topographic basemap and drawn up at the appropriate scale, with generalization if necessary, to create a geological map, which is a representation of the geological model. Explanatory notes and vertical and horizontal cross sections may be published with the map. Geological maps may be created to show various aspects of the geology, or themes. The most common map themes held by BGS are solid (later referred to as bedrock) and drift (later referred to as superficial). These maps are, for the most part, hard-copy paper records stored in the National Geoscience Data Centre (NGDC) and are delivered as digital scans through the BGS website.

  14. LIDAR Composite Digital Terrain Model (DTM) 2m

    • environment.data.gov.uk
    Updated Dec 15, 2023
    + more versions
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    Environment Agency (2023). LIDAR Composite Digital Terrain Model (DTM) 2m [Dataset]. https://environment.data.gov.uk/dataset/09ea3b37-df3a-4e8b-ac69-fb0842227b04
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    Dataset updated
    Dec 15, 2023
    Dataset authored and provided by
    Environment Agencyhttps://www.gov.uk/ea
    License

    Open Government Licence 3.0http://www.nationalarchives.gov.uk/doc/open-government-licence/version/3/
    License information was derived automatically

    Description

    The LIDAR Composite DTM (Digital Terrain Model) is a raster elevation model covering ~99% of England at 2m spatial resolution. The DTM (Digital Terrain Model) is produced from the last or only laser pulse returned to the sensor. We remove surface objects from the Digital Surface Model (DSM), using bespoke algorithms and manual editing of the data, to produce a terrain model of just the surface.

    Produced by the Environment Agency in 2022, the DTM is derived from a combination of our Time Stamped archive and National LIDAR Programme surveys, which have been merged and re-sampled to give the best possible coverage. Where repeat surveys have been undertaken the newest, best resolution data is used. Where data was resampled a bilinear interpolation was used before being merged.

    The 2022 LIDAR Composite contains surveys undertaken between 6th June 2000 and 2nd April 2022. Please refer to the metadata index catalgoues which show for any location which survey was used in the production of the LIDAR composite.

    The data is available to download as GeoTiff rasters in 5km tiles aligned to the OS National grid. The data is presented in metres, referenced to Ordinance Survey Newlyn and using the OSTN’15 transformation method. All individual LIDAR surveys going into the production of the composite had a vertical accuracy of +/-15cm RMSE.

  15. GB Topographic Hillshade

    • hub.arcgis.com
    Updated Apr 2, 2019
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    Esri UK (2019). GB Topographic Hillshade [Dataset]. https://hub.arcgis.com/maps/cc027e3f61364983a5cf08dea5dce4a5
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    Dataset updated
    Apr 2, 2019
    Dataset provided by
    Esrihttp://esri.com/
    Authors
    Esri UK
    Area covered
    Description

    This webmap combines the GB Topographic style with the GB Hillshade service.Customise this MapBecause this is a vector tile layer, you can customise the map to change its content and symbology. You are able to turn on and off layers and change their symbols. You can open this style in the vector tile style editor, make your changes and save a copy of your modified style to use yourself.As the GB Topographic style is designed to be used in conjunction with the GB Hillshade, it is recommended that after creating you own style you combine it in a webmap with Hillshade service.The map is based primarily on OS Zoomstack data (last updated December 2022).Please send any feedback to VectorTiles@esriuk.com

  16. E

    OS Digital Terrain Model [OS Terrain 5]

    • catalogue.ceh.ac.uk
    Updated Mar 28, 2013
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    NERC EDS Environmental Information Data Centre (2013). OS Digital Terrain Model [OS Terrain 5] [Dataset]. https://catalogue.ceh.ac.uk/id/2bfdc01b-521a-4353-9c8a-659e42762bf2
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    Dataset updated
    Mar 28, 2013
    Dataset provided by
    NERC EDS Environmental Information Data Centre
    Area covered
    Description

    5m resolution digital terrain model (DTM) of Great Britain. The elevation values are calculated at the centre of the cell and they are given to the nearest 0.01 m. Due to local tidal conditions, the height of the mean high and low water mark varies continuously around the coast of Britain. The mean high and low water lines have been derived from large-scale mapping and assigned constant height values, based on the average for each tile. This average value has been determined from local tide tables. The mean high and low water lines were used as heighted breaklines when creating the grid to ensure the grid product is consistent with the contour product. This means that there may be a small discrete step in the height of tidal water between adjacent tiles. For areas of permanent tidal water the height of the mean low water has been extended out to the tile edge to ensure that the tile is complete. Heights in the foreshore area are interpolated between the mean high and low water heights.

  17. n

    LANDMAP: Satellite Image and and Elevation Maps of the United Kingdom

    • cmr.earthdata.nasa.gov
    Updated Apr 21, 2017
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    (2017). LANDMAP: Satellite Image and and Elevation Maps of the United Kingdom [Dataset]. https://cmr.earthdata.nasa.gov/search/concepts/C1214611010-SCIOPS.html
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    Dataset updated
    Apr 21, 2017
    Time period covered
    Jan 1, 1970 - Present
    Area covered
    Description

    [From The Landmap Project: Introduction, "http://www.landmap.ac.uk/background/intro.html"]

     A joint project to provide orthorectified satellite image mosaics of Landsat,
     SPOT and ERS radar data and a high resolution Digital Elevation Model for the
     whole of the UK. These data will be in a form which can easily be merged with
     other data, such as road networks, so that any user can quickly produce a
     precise map of their area of interest.
    
     Predominately aimed at the UK academic and educational sectors these data and
     software are held online at the Manchester University super computer facility
     where users can either process the data remotely or download it to their local
     network.
    
     Please follow the links to the left for more information about the project or
     how to obtain data or access to the radar processing system at MIMAS. Please
     also refer to the MIMAS spatial-side website,
     "http://www.mimas.ac.uk/spatial/", for related remote sensing materials.
    
  18. W

    LiDAR based Digital Terrain Model (DTM) for South West England Web Map...

    • cloud.csiss.gmu.edu
    • data.wu.ac.at
    wms
    Updated Dec 29, 2019
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    United Kingdom (2019). LiDAR based Digital Terrain Model (DTM) for South West England Web Map Service (WMS) [Dataset]. https://cloud.csiss.gmu.edu/uddi/dataset/lidar-based-digital-terrain-model-dtm-for-south-west-england-web-map-service-wms
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    wmsAvailable download formats
    Dataset updated
    Dec 29, 2019
    Dataset provided by
    United Kingdom
    Area covered
    England, South West England
    Description

    This is a web map service (WMS) of Digital Terrain Model (DTM) data in South West England at a 1m resolution. The DTM covers an area of 9424 km2 that includes all the land west of Exmouth (i.e. west of circa 3 degrees 21 minutes West). The DTM represents the topographic model (height) of the bare earth. The dataset is a part of outcomes from the Centre for Ecology & Hydrology South West (SW) Project.

  19. b

    B 37 S IV SE North 6 IV

    • hosted-metadata.bgs.ac.uk
    jpg
    Updated 1949
    + more versions
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    Ministry of Petroleum and Mining (National Geodata Centre for Kenya) (1949). B 37 S IV SE North 6 IV [Dataset]. https://hosted-metadata.bgs.ac.uk/geonetwork/srv/api/records/6f46476a-204d-4112-a62a-aac6a7c2a619?language=all
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    jpgAvailable download formats
    Dataset updated
    1949
    Dataset provided by
    Ministry of Petroleum and Mining (National Geodata Centre for Kenya)
    Area covered
    Description

    The Preliminary Plot 1: 50 000 scale map serises are the initial topographic maps developed for Kenya. They are nbased on air photographs captured by the Royal Air Force (United Kingdom). They are essentially black an dwhite maps showing a simple interpretation of the key topographic features. CRS: Transverse Mercator, Clarke 1880. Publishers: DCS Directorate of Colonial Surveys (United Kingdom Government); KS Kenya Survey; GSGS War Office (United Kingdom Government); DOS Directorate of Overseas Surveys (United kingdom Government) Except map A37 VI SW South Ndakathima which is in Arc (1960) Clarke (1880)

  20. Historic Maps Collection

    • data.wu.ac.at
    • cloud.csiss.gmu.edu
    • +2more
    Updated Aug 18, 2018
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    British Geological Survey (2018). Historic Maps Collection [Dataset]. https://data.wu.ac.at/odso/data_gov_uk/MGNmYTk2MzgtYzE0NC00NWRjLTk5MDAtNjZlNjViMmJlYmIz
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    Dataset updated
    Aug 18, 2018
    Dataset provided by
    British Geological Surveyhttps://www.bgs.ac.uk/
    Area covered
    f0e8baadc15f92fa2be14a36af7f85759db1521f
    Description

    This dataset comprises 2 collections of maps. The facsmile collection contains all the marginalia information from the original map as well as the map itself, while the georectified collection contains just the map with an associated index for locating them. Each collection comprises approximately 101 000 monochrome images at 6-inch (1:10560) scale. Each image is supplied in .tiff format with appropriate ArcView and MapInfo world files, and shows the topography for all areas of England, Wales and Scotland as either quarter or, in some cases, full sheets. The images will cover the approximate epochs 1880's, 1900's, 1910's, 1920's and 1930's, but note that coverage is not countrywide for each epoch. The data was purchased by BGS from Sitescope, who obtained it from three sources - Royal Geographical Society, Trinity College Dublin and the Ordnance Survey. The data is for internal use by BGS staff on projects, and is available via a customised application created for the network GDI enabling users to search for and load the maps of their choice. The dataset will have many uses across all the geoscientific disciplines across which BGS operates, and should be viewed as a valuable addition to the BGS archive. There has been a considerable amount of work done during 2005, 2006 and 2007 to improve the accuracy of the OS Historic Map Collection. All maps should now be located to +- 50m or better. This is the best that can be achieved cost effectively. There are a number of reasons why the maps are inaccurate. Firstly, the original maps are paper and many are over 100 years old. They have not been stored in perfect condition. The paper has become distorted to varying degrees over time. The maps were therefore not accurate before scanning. Secondly, different generations of maps will have used different surveying methods and different spatial referencing systems. The same geographical object will not necessarily be in the same spatial location on subsequent editions. Thirdly, we are discussing maps, not plans. There will be cartographic generalisations which will affect the spatial representation and location of geographic objects. Finally, the georectification was not done in BGS but by the company from whom we purchased the maps. The company no longer exists. We do not know the methodology used for georectification.

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Esri UK (2019). GB Topographic [Dataset]. https://hub.arcgis.com/maps/2d5a797a822b462e9aa5a6bdbf34bf2f
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GB Topographic

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234 scholarly articles cite this dataset (View in Google Scholar)
Dataset updated
Apr 1, 2019
Dataset provided by
Esrihttp://esri.com/
Authors
Esri UK
Area covered
Description

This style provides a detailed vector basemap for Great Britain using Open Data featuring the classic Esri topographic map style designed for use with a the GB Hillshade serviceThe vector tile layer is a similar style to the Esri World Topographic Map which is provided in Web Mercator projection.This service contains data supplied by the Ordnance Survey in their Zoomstack product (data last updated December 2024)The map projection is British National Grid.Customise this MapBecause this is a vector tile layer, you can customise the map to change its content and symbology. You are able to turn on and off layers and change their symbols. You can open this style in the vector tile style editor, make your changes and save a copy of your modified style to use yourself.Please send any feedback to VectorTiles@esriuk.com

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