BAS Data Catalogue

Version:: 7.4
Released:: 2021-05-11T14:00:00

Citation

Please cite this item as 'Gerrish, L., Fretwell, P., & Cooper, P. (2021). Medium resolution vector polygons of the Antarctic coastline (7.4) [Data set]. UK Polar Data Centre, Natural Environment Research Council, UK Research & Innovation. https://doi.org/10.5285/e747e63e-9d93-49c2-bafc-cf3d3f8e5afa'.

If using for a graphic or if short on space, please cite as 'data from the SCAR Antarctic Digital Database, accessed [year]'

Abstract

Coastline for Antarctica created from various mapping and remote sensing sources, provided as polygons with ‘land’, ‘ice shelf’, ‘ice tongue’ or ‘rumple’ attribute. This dataset has been generalised from the high resolution vector polygons. Covering all land and ice shelves south of 60°S. Suitable for topographic mapping and analysis. Major changes in v7.4 include updates to coastline and ice shelves between Gipps Ice Rise and Ronne Ice Shelf, updated ice shelf fronts for Brunt, Stange and West ice shelves, Pine Island Glacier, and an updated coastline for Adelaide Island.

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.

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You must include an acknowledgement if you use this item.

Gerrish, Laura

British Antarctic Survey

Email: lauger@bas.ac.uk

ORCID: https://orcid.org/0000-0003-1410-9122

Fretwell, Peter

British Antarctic Survey

Email: ptf@bas.ac.uk

ORCID: https://orcid.org/0000-0002-1988-5844

Cooper, Paul

British Antarctic Survey

Item licence

Creative Commons Attribution 4.0 International (CC BY 4.0)

Licence summary

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Location keywords

ANTARCTICA None

Bounding coordinates

Top-right corner:: North: -60.0, East: 180.0
Bottom-left corner:: South: -90.0, West: -180.0

Temporal range

From: 1993-01-01, To: 2021-04-30

Lineage statement

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-2020 - 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 ‘point remove’ algorithm and a smoothing tolerance of 50 m.

Item ID:: e747e63e-9d93-49c2-bafc-cf3d3f8e5afa
Item type:: Dataset
Data type:: Vector
Spatial reference system:: WGS 84 / Antarctic Polar Stereographic (EPSG:3031)
Item created: 1993
Item published: 2021-05-11T11:44:36
Item released: 2021-05-11T14:00:00
Item updated: 2021-04-30
Update frequency:: Biannually (every 6 months)

Keywords

BAS Research Topics:

Topographic mapping

ISO Topics

environment
geoscientificInformation
imageryBaseMapsEarthCover

INSPIRE themes

Land Cover
Land Use

GCMD Science Keywords

COASTLINE
TOPOGRAPHY
GROUNDING LINE

Metadata information

Last updated:: 2024-11-05
Metadata standard:: 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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