High resolution vector contours for Antarctica

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Distribution Information
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Metadata: 
  File identifier: 
      4bd20a2b-df7d-46a2-acdf-5104c82ff4c7
  Language: 
    Language Code: 
      eng
  Character set: 
    Character set code: 
      utf8
  Hierarchy level: 
    Scope code: 
      dataset
  Hierarchy level name: 
      dataset
  Metadata author: 
    Responsible party: 
      Organisation name: 
        Anchor: xlink: https://ror.org/01rhff309 title: ror
          Mapping and Geographic Information Centre, British Antarctic Survey
      Contact info: 
        Contact: 
          Phone: 
            Telephone: 
              Voice: 
                  +44 (0)1223 221400
          Address: 
            Address: 
              Delivery point: 
                  British Antarctic Survey, High Cross, Madingley Road
              City: 
                  Cambridge
              Administrative area: 
                  Cambridgeshire
              Postal code: 
                  CB3 0ET
              Country: 
                  United Kingdom
              Electronic mail address: 
                  magic@bas.ac.uk
          Online Resource: 
            Online Resource: 
              Linkage: 
                URL: 
                  https://www.bas.ac.uk/teams/magic
              Name: 
                  Mapping and Geographic Information Centre (MAGIC) - BAS public website
              Description: 
                  General information about the BAS Mapping and Geographic Information Centre (MAGIC) from the British 
                  Antarctic Survey (BAS) public website.
              Function: 
                Online function code: 
                  information
      Role: 
        Role code: 
          pointOfContact
  Date stamp: 
      2025-05-18
  Metadata standard name: 
      ISO 19115-2 Geographic Information - Metadata - Part 2: Extensions for Imagery and Gridded Data
  Metadata standard version: 
      ISO 19115-2:2009(E)
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Reference system info: Reference system: Reference system identifier: RS Identifier: Authority: Citation: Title: European Petroleum Survey Group (EPSG) Geodetic Parameter Registry Date: Date: Date: 2008-11-12 Date type: Date type code: publication Cited responsible party: Responsible party: Organisation name: European Petroleum Survey Group Contact info: Contact: Address: Address: Electronic mail address: EPSGadministrator@iogp.org Online Resource: Online Resource: Linkage: URL: https://www.epsg-registry.org/ Name: EPSG Geodetic Parameter Dataset Description: The EPSG Geodetic Parameter Dataset is a structured dataset of Coordinate Reference Systems and Coordinate Transformations, accessible through this online registry. Function: Online function code: information Role: Role code: publisher Code: Anchor: xlink: http://www.opengis.net/def/crs/EPSG/0/3031 urn:ogc:def:crs:EPSG::3031 Version: 6.18.3
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Identification info: Data identification: Citation: Citation: Title: High resolution vector contours for Antarctica Date: Date: Date: 1993 Date type: Date type code: creation Date: Date: Date: 2020-11-04T13:45:03+00:00 Date type: Date type code: publication Date: Date: Date: 2020-10-30 Date type: Date type code: revision Date: Date: Date: 2020-11-04T13:45:03+00:00 Date type: Date type code: released Edition: 7.3 Identifier: RS Identifier: Code: Anchor: xlink: https://data.bas.ac.uk/items/4bd20a2b-df7d-46a2-acdf-5104c82ff4c7 4bd20a2b-df7d-46a2-acdf-5104c82ff4c7 Code Space: data.bas.ac.uk Identifier: RS Identifier: Code: Anchor: xlink: https://doi.org/10.5285/4bd20a2b-df7d-46a2-acdf-5104c82ff4c7 10.5285/4bd20a2b-df7d-46a2-acdf-5104c82ff4c7 Code Space: doi Other citation details: Please cite this item as: 'Gerrish, L., Fretwell, P., & Cooper, P. (2020). High resolution vector contours for Antarctica (7.3) [Data set]. UK Polar Data Centre, Natural Environment Research Council, UK Research & Innovation. https://doi.org/10.5285/4bd20a2b-df7d-46a2-acdf-5104c82ff4c7'. Abstract: A continuous contour dataset at 100 m intervals for all land south of 60°S, excluding the Balleny Islands. The vertical datum of the contours is EGM2008. Contours are extracted primarily from the PGC Reference Elevation Model of Antarctica (REMA) v1.1 with certain islands filled from Copernicus WorldDEM. Further small areas are interpreted from satellite imagery, and Peter I Øy contours are from the Norwegian Polar Institute. Sources of individual line segments are contained in the attribute table and full compilation information is given in the lineage statement.
          
Note: contours overlap the coastline in small areas, due to resolution of the data used in creation of the lines, and potential errors in coastline and/or contour data. Certain areas are known to contain erroneous data due to faults in the original DEM data.
          
Data compiled, managed and distributed by the Mapping and Geographic Information Centre and the UK Polar Data Centre, British Antarctic Survey on behalf of the Scientific Committee on Antarctic Research. Purpose: Continuous 100m interval contours for land south of 60°S, generated from REMA v1.1 and other sources. Point of contact: Responsible party: Individual name: Anchor: xlink: https://orcid.org/0000-0003-1410-9122 title: orcid Gerrish, Laura Organisation name: Anchor: xlink: https://ror.org/01rhff309 title: ror British Antarctic Survey Contact info: Contact: Address: Address: Electronic mail address: lauger@bas.ac.uk Online Resource: Online Resource: Linkage: URL: https://orcid.org/0000-0003-1410-9122 Name: ORCID record Description: ORCID is an open, non-profit, community-driven effort to create and maintain a registry of unique researcher identifiers and a transparent method of linking research activities and outputs to these identifiers. Function: Online function code: information Role: Role code: author Point of contact: Responsible party: Organisation name: Anchor: xlink: https://ror.org/01rhff309 title: ror Mapping and Geographic Information Centre, British Antarctic Survey Contact info: Contact: Phone: Telephone: Voice: +44 (0)1223 221400 Address: Address: Delivery point: British Antarctic Survey, High Cross, Madingley Road City: Cambridge Administrative area: Cambridgeshire Postal code: CB3 0ET Country: United Kingdom Electronic mail address: magic@bas.ac.uk Online Resource: Online Resource: Linkage: URL: https://www.bas.ac.uk/teams/magic Name: Mapping and Geographic Information Centre (MAGIC) - BAS public website Description: General information about the BAS Mapping and Geographic Information Centre (MAGIC) from the British Antarctic Survey (BAS) public website. Function: Online function code: information Role: Role code: pointOfContact Point of contact: Responsible party: Organisation name: Anchor: xlink: https://ror.org/01rhff309 title: ror UK Polar Data Centre, British Antarctic Survey Contact info: Contact: Phone: Telephone: Voice: +44 (0)1223 221400 Address: Address: Delivery point: British Antarctic Survey, High Cross, Madingley Road City: Cambridge Administrative area: Cambridgeshire Postal code: CB3 0ET Country: United Kingdom Electronic mail address: polardatacentre@bas.ac.uk Online Resource: Online Resource: Linkage: URL: https://www.bas.ac.uk/team/business-teams/information-services/uk-polar-data-centre/ Name: UK Polar Data Centre (UK PDC) - BAS public website Description: General information about the NERC Polar Data Centre (UK PDC) from the British Antarctic Survey (BAS) public website. Function: Online function code: information Role: Role code: publisher Point of contact: Responsible party: Organisation name: Standing Committee on Antarctic Research Contact info: Contact: Address: Address: Delivery point: Scientific Committee on Antarctic Research, Scott Polar Research Institute, University of Cambridge, Lensfield Road City: Cambridge Administrative area: Cambridgeshire Postal code: CB2 1ER Country: United Kingdom Electronic mail address: info@scar.org Role: Role code: sponsor Resource maintenance: Maintenance information: Maintenance and update frequency: Maintenance frequency code: asNeeded Maintenance note: Progress code: completed Resource constraints: Legal constraints: Access constraints: Restriction code: unrestricted Resource constraints: Legal constraints: Use constraints: Restriction code: license Other constraints: Anchor: xlink: https://creativecommons.org/licenses/by/4.0/ This information is licensed under the Creative Commons Attribution 4.0 International Licence (CC BY 4.0). To view this licence, visit https://creativecommons.org/licenses/by/4.0/ Aggregation Info: AggregateInformation: Aggregate Data Set Identifier: RS Identifier: Code: Anchor: xlink: https://data.bas.ac.uk/items/571c967c-d007-45b3-b327-64d11cb496f4 571c967c-d007-45b3-b327-64d11cb496f4 Code Space: data.bas.ac.uk Association Type: Association type code: revisionOf Aggregation Info: AggregateInformation: Aggregate Data Set Identifier: RS Identifier: Code: Anchor: xlink: https://data.bas.ac.uk/items/e74543c0-4c4e-4b41-aa33-5bb2f67df389 e74543c0-4c4e-4b41-aa33-5bb2f67df389 Code Space: data.bas.ac.uk Association Type: Association type code: largerWorkCitation Initiative Type: Initiative type code: collection Language: Language Code: eng Character set: Character set code: utf8 Extent: Extent: Geographic element: Geographic bounding box: West bound longitude: -180.0 East bound longitude: 180.0 South bound latitude: -90.0 North bound latitude: -60.0 Temporal element: Temporal extent: Extent: Time period: Begin date: 1993-01-01 End date: 2020-10-30
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Distribution info: Distribution: Distributor: Distributor: Distributor contact: Responsible party: Organisation name: Anchor: xlink: https://ror.org/0428exr50 title: ror Environmental Systems Research Institute Contact info: Contact: Address: Address: Delivery point: 380 New York Street City: Redlands Administrative area: California Postal code: 92373 Country: United States of America Electronic mail address: unknown Online Resource: Online Resource: Linkage: URL: https://www.esri.com Name: GIS Mapping Software, Location Intelligence & Spatial Analytics | Esri Description: Corporate website for Environmental Systems Research Institute (ESRI). Function: Online function code: information Role: Role code: distributor Distributor format: Format: Name: Anchor: xlink: https://metadata-resources.data.bas.ac.uk/media-types/x-service/arcgis+service+feature ArcGIS Feature Service Version: missing Distributor format: Format: Name: Anchor: xlink: https://metadata-resources.data.bas.ac.uk/media-types/x-service/arcgis+service+tile+vector ArcGIS Vector Tile Service Version: missing Distributor format: Format: Name: Anchor: xlink: https://metadata-resources.data.bas.ac.uk/media-types/x-service/arcgis+layer+feature ArcGIS Feature Layer Version: missing Distributor format: Format: Name: Anchor: xlink: https://metadata-resources.data.bas.ac.uk/media-types/x-service/arcgis+layer+tile+vector ArcGIS Tile Layer Version: missing Distributor transfer options: Digital transfer options: Online: Online Resource: Linkage: URL: https://services7.arcgis.com/tPxy1hrFDhJfZ0Mf/arcgis/rest/services/add_contours_high_res_v7_3/FeatureServer Name: ArcGIS Living Atlas Description: Access information as a feature service in the ArcGIS Living Atlas of the World. Function: Online function code: download Distributor transfer options: Digital transfer options: Online: Online Resource: Linkage: URL: https://tiles.arcgis.com/tiles/tPxy1hrFDhJfZ0Mf/arcgis/rest/services/add_contours_high_res_vt/VectorTileServer Name: ArcGIS Living Atlas Description: Access information as a vector tile service in the ArcGIS Living Atlas of the World. Function: Online function code: download Distributor transfer options: Digital transfer options: Online: Online Resource: Linkage: URL: https://www.arcgis.com/home/item.html?id=96f093ac814947e9b294975ef155aefc Name: ArcGIS Living Atlas Description: Access information as a feature layer in the ArcGIS Living Atlas of the World. Function: Online function code: download Distributor transfer options: Digital transfer options: Online: Online Resource: Linkage: URL: https://www.arcgis.com/home/item.html?id=9f22b4a3f0ea4877839f5a829366dac1 Name: ArcGIS Living Atlas Description: Access information as a tile layer in the ArcGIS Living Atlas of the World. Function: Online function code: download Distributor: Distributor: Distributor contact: Responsible party: Organisation name: Anchor: xlink: https://ror.org/01rhff309 title: ror UK Polar Data Centre, British Antarctic Survey Contact info: Contact: Phone: Telephone: Voice: +44 (0)1223 221400 Address: Address: Delivery point: British Antarctic Survey, High Cross, Madingley Road City: Cambridge Administrative area: Cambridgeshire Postal code: CB3 0ET Country: United Kingdom Electronic mail address: polardatacentre@bas.ac.uk Online Resource: Online Resource: Linkage: URL: https://www.bas.ac.uk/team/business-teams/information-services/uk-polar-data-centre/ Name: UK Polar Data Centre (UK PDC) - BAS public website Description: General information about the NERC Polar Data Centre (UK PDC) from the British Antarctic Survey (BAS) public website. Function: Online function code: information Role: Role code: distributor Distributor format: Format: Name: Anchor: xlink: https://www.iana.org/assignments/media-types/application/geopackage+sqlite3 GeoPackage Version: missing Distributor format: Format: Name: Anchor: xlink: https://metadata-resources.data.bas.ac.uk/media-types/application/vnd.shp+zip Shapefile Version: missing Distributor transfer options: Digital transfer options: Units of distribution: bytes Transfer size: 813862748 Online: Online Resource: Linkage: URL: https://ramadda.data.bas.ac.uk/repository/entry/get/add_contours_high_res_v7.3.application/geopackage+sqlite3?entryid=synth%3A4bd20a2b-df7d-46a2-acdf-5104c82ff4c7%3AL2FkZF9jb250b3Vyc19oaWdoX3Jlc192Ny4zLmdwa2c%3D Name: GeoPackage Description: Download information as an OGC GeoPackage. Function: Online function code: download Distributor transfer options: Digital transfer options: Units of distribution: bytes Transfer size: 576999915 Online: Online Resource: Linkage: URL: https://ramadda.data.bas.ac.uk/repository/entry/get/add_contours_high_res_v7.3.zip?entryid=synth%3A4bd20a2b-df7d-46a2-acdf-5104c82ff4c7%3AL2FkZF9jb250b3Vyc19oaWdoX3Jlc192Ny4zLnppcA%3D%3D Name: Shapefile (Zipped) Description: Download information as an Esri Shapefile (compressed as a Zip file). Function: Online function code: download
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Data quality info: Data quality: Scope: Scope: Hierarchy level: Scope code: dataset Report: Domain consistency: Result: Conformance result: Specification: Citation: Title: Anchor: xlink: https://metadata-standards.data.bas.ac.uk/profiles/magic-discovery-v1/ British Antarctic Survey (BAS) Mapping and Geographic Information Centre (MAGIC) Discovery Metadata Profile Date: Date: Date: 2024-11-01 Date type: Date type code: publication Edition: 1 Cited responsible party: Responsible party: Organisation name: Anchor: xlink: https://ror.org/01rhff309 title: ror Mapping and Geographic Information Centre, British Antarctic Survey Contact info: Contact: Phone: Telephone: Voice: +44 (0)1223 221400 Address: Address: Delivery point: British Antarctic Survey, High Cross, Madingley Road City: Cambridge Administrative area: Cambridgeshire Postal code: CB3 0ET Country: United Kingdom Electronic mail address: magic@bas.ac.uk Online Resource: Online Resource: Linkage: URL: https://www.bas.ac.uk/teams/magic Name: Mapping and Geographic Information Centre (MAGIC) - BAS public website Description: General information about the BAS Mapping and Geographic Information Centre (MAGIC) from the British Antarctic Survey (BAS) public website. Function: Online function code: information Role: Role code: publisher Explanation: Resource within scope of British Antarctic Survey (BAS) Mapping and Geographic Information Centre (MAGIC) Discovery Metadata Profile. Pass: true Lineage: Lineage: Statement: All processing described here was performed in ArcGIS Pro version 2.6.
              
A composite Digital Elevation Model (DEM) was created comprising of three datasets from the Reference Elevation Model of Antarctica v1.1: ‘REMA_100m_peninsula_dem_filled’, ‘REMA_100m_dem’ and ‘REMA_200m_dem_filled’. These DEMs were first converted from ellipsoidal height to height above EGM2008 geoid and then mosaicked together in respective order at 100 m spatial resolution. This 100 m DEM was smoothed by performing ‘Focal Statistics’ using a 3x3 cell size.
              
100 m contours were extracted and all contours with a height <1m were deleted, as well as erroneous offshore contours. All contour ‘dangles’ were identified and then fixed to create a continuous dataset. They were fixed either by interpreting the correct line from satellite imagery or from ‘Copernicus WorldDEM 90m’ contours. Such lines are attributed with ‘interpreted’ in the source field and should be treated with caution. In other locations where the contours significantly overlapped the coastline, contours were redrawn/interpreted to not go offshore. In certain locations, primarily some islands on the Antarctic Peninsula, REMA data was insufficient to produce contours. In these places, contours were produced from the ‘Copernicus WorldDEM 90m’ DEM and smoothed by 300 m using a PAEK smoothing algorithm. Contours for Peter I Øy were incorporated from the Norwegian Polar Institute Data at 100 m intervals. The source of every line is written in the attribute table.
              
All contours were merged together and lines <150 m in length were deleted. Further lines <1500 m were deleted in ‘non-mountainous’ regions, so as to avoid deleting small mountain peak contours but to still simplify the main dataset. These regions were interpreted manually using the hillshade of the DEM used to produce the contours.
              
Original DEM sources and citations:
              
REMA: Howat, I. M., Porter, C., Smith, B. E., Noh, M.-J., and Morin, P.: The Reference Elevation Model of Antarctica, The Cryosphere, 13, 665-674, https://doi.org/10.5194/tc-13-665-2019, 2019.
              
Copernicus WorldDEM: produced using Copernicus WorldDEM™-90 © DLR e.V. 2010-2014 and © Airbus Defence and Space GmbH 2014-2018 provided under COPERNICUS by the European Union and ESA; all rights reserved”.
              
Norwegian Polar Institute (2014). Map data / kartdata Peter I Øy 1:50 000 (P50 Kartdata). Norwegian Polar Institute. https://doi.org/10.21334/npolar.2014.29105abc
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