DOI: 10.5285/70c8609b-2f88-4948-8af4-2ff90262547c
title: Scale0 vector line of the Antarctic coastline - VERSION 2.0

description: The second edition of the Antarctic Digital Database (ADD) coastline polyline dataset. A compilation of source data from eleven national mapping agencies at data scales no larger than 1:200,000/1:250:000. Line dataset was originally published on CD-ROM in 1998, in tiled Coverage format. Data has since been converted and merged to a single dataset and exported to shapefile and geopackage formats. Scale0 is the highest resolution that was produced.

ADD Version 2.0 contained many amendements to the original data. Most corrections were made in Quadrant 4, which covers the Antarctic Peninsula, parts of Ellsworth Land and Coats Land. A few features such as Doake Ice Rumples, were inadvertently omitted from ADD Version 1.0, so were included in this version for the first time. Data for the Ronne and Filchner ice shelves were also upgraded. A new map of James Ross Island was incorporated, and the positions of ice fronts of the northern Larsen Ice Shelf, Wordie Ice Shelf and Wilkins Ice Shelf were also amended using the latest available information. Other minor changes were also made and documented in the ADD Manual: https://nora.nerc.ac.uk/id/eprint/536533/

The UK Consortium behind the ADD Version 1.0, passed the ongoing maintenance and revision of the ADD to British Antarctic Survey (BAS) for Version 2.0.

For full details on the dataset, please refer to the ADD Manual v2.0: https://nora.nerc.ac.uk/id/eprint/536533/

Due to the very wide and legacy sources of the data for this compilation, the dataset attributes are inconsistent in format and incomplete. The data are published as they stood at the time of their first publication in 1998. The most recent version of the Antarctic Digital Database is available at: https://data.bas.ac.uk/collections/e74543c0-4c4e-4b41-aa33-5bb2f67df389/
description: Compiled using data from eleven national mapping agencies at data scales no larger than 1:200,000/1:250:000. Dataset was originally published in tiled Coverage format, using Esri ArcInfo. Data has now been merged to a single dataset using ArcMap v10.8 and exported to shapefile and geopackage formats. Each line has attributes detailing the date ('CST00DAT'), and sources ('CST00SHT' and 'CST00SRC'). Data sources are dated between 1956-1997.

For full details on the dataset, including bibliography of sources, please refer to the ADD Manual v2.0: https://nora.nerc.ac.uk/id/eprint/536533/"}

Data attributes are:

- CST00TYP - Coastline type (denoted by code, outlined below)
- CST00DAT - Datestamp of source data
- CST00INF - Text field for notes and comments
- CST00SHT - Reference for map sheet of digitised source data
- CST00EDT - Data editor
- CST00SRC - Source of data
- CST00REV - Revision date of data


Coast types are defined using the `CST00TYP` attribute, where: 
 
- 22010 - ice coastline (definite),
- 22011 - rock coastline (definite), 
- 22012 - grounding line (definite),
- 22013 - rock against ice shelf (definite),
- 22020 - ice wall (approximate),
- 22021 - rock coastline (approximate), 
- 22022 - grounding line (approximate),
- 22023 - rock against ice shelf (approximate), 
- 22030 - iceberg tongue
- 22040 - floating glacier tongue
- 22050 - ice shelf and front
- 22090 - ice rumples (distinct)
- 22100 - ice rumples (indistinct)
description: Scale0 is the highest resolution that was produced.