Abstract:
Coastline for Antarctica created from various mapping and remote sensing sources, provided as polygons with "land", "ice shelf", "ice tongue" or "rumple" attribute. Covering all land and ice shelves south of 60 degS. Suitable for topographic mapping and analysis. This dataset has been generalised from the high resolution vector polygons. Medium resolution versions of the Antarctic Digital Database (ADD) data are suitable for scales smaller than 1:1,000,000, although certain regions will appear more detailed than others due to variable data availability and coastline characteristics.
Changes in v7.10 include updates to the coastline of Alexander Island and surrounding islands, and the ice shelf fronts of the Wilkins and Brunt ice shelves.
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.
Keywords:
Antarctic Digital Database, Antarctica, Coastline, Land cover, Land use, Topographic mapping
Gerrish, L., Ireland, L., Fretwell, P., & Cooper, P. (2024). Medium resolution vector polygons of the Antarctic coastline - VERSION 7.10 (Version 7.10) [Data set]. NERC EDS UK Polar Data Centre. https://doi.org/10.5285/93ac35af-9ec7-4594-9aaa-0760a2b289d5
| Access Constraints: | None |
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| Use Constraints: | 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/ Please cite this item as 'Gerrish, L., Ireland, L., Fretwell, P., & Cooper, P. (2024). Medium resolution vector polygons of the Antarctic coastline - VERSION 7.10 (Version 7.10) [Data set]. NERC EDS UK Polar Data Centre. https://doi.org/10.5285/93ac35af-9ec7-4594-9aaa-0760a2b289d5'. If using for a graphic or if short on space, please cite as 'data from the SCAR Antarctic Digital Database, 2024' |
| Creation Date: | 2024-11-06 |
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| Dataset Progress: | Complete |
| Dataset Language: | English |
| ISO Topic Categories: |
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| Parameters: |
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| Personnel: | |
| Name | PDC BAS |
| Role(s) | Metadata Author |
| Organisation | British Antarctic Survey |
| Name | Ms Laura Gerrish |
| Role(s) | Investigator |
| Organisation | British Antarctic Survey |
| Name | Ms Louise Ireland |
| Role(s) | Investigator |
| Organisation | British Antarctic Survey |
| Name | Dr Peter T Fretwell |
| Role(s) | Investigator |
| Organisation | British Antarctic Survey |
| Name | Paul Cooper |
| Role(s) | Investigator |
| Organisation | British Antarctic Survey |
| Parent Dataset: | N/A |
| Lineage: | Dataset compiled from a variety of Antarctic map and satellite image sources. The dataset was created using ArcGIS and QGIS GIS software programmes and has been checked for basic topography and geometry checks, but does not contain strict topology. Quality varies across the dataset and certain areas where high resolution source data were available are suitable for large scale maps whereas other areas are only suitable for smaller scales. Each polygon contains a 'surface' attribute with either 'land', 'ice shelf', 'ice tongue' or 'rumple'. Details of when and how each line was created can be found in the attributes of the high or medium resolution polyline coastline dataset. Data sources range in time from 1990s-2024 - individual lines contain exact source dates. This medium resolution version has been generalised from the high resolution version. All polygons <0.1km2 not intersecting anything else were deleted and the 'simplify' tool was used in ArcGIS with the 'retain critical points' algorithm and a smoothing tolerance of 50 m. | |
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| Temporal Coverage: | |
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| Start Date | 1993-01-01 |
| End Date | 2024-10-31 |
| Spatial Coverage: | |
| Latitude | |
| Southernmost | -90 |
| Northernmost | -60 |
| Longitude | |
| Westernmost | -180 |
| Easternmost | 180 |
| Altitude | |
| Min Altitude | N/A |
| Max Altitude | N/A |
| Depth | |
| Min Depth | N/A |
| Max Depth | N/A |
| Location: | |
| Location | Antarctica |
| Detailed Location | N/A |
| Distribution: | |
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| Distribution Media | Online Internet (HTTP) |
| Distribution Size | 8 MB |
| Distribution Format | SHP |
| Fees | N/A |
| Data Storage: | This dataset constains 2 files: - GeoPackage ~4.96 MB - Shapefile ~2.97 MB |