Margin of the Antarctic ice cover derived from Synthetic Aperture Radar images for the sector 79E-108E

The majority of the SAR data were acquired by the ERS-SAR instruments in August 1996, some ERS data were acquired in August 1993, and one Radarsat scene was acquired in September 1997. The data were pre-processed to produce a mosaic with a 100 m pixel size, and adjusted so that the majority of the coastline positions refer to the August 1996 epoch. The location data are internally consistent, and extracted at nominally 200 m intervals.

The external position accuracy is generally better than 600 m. The coverage is complete over the whole sector. The coordinate set includes some island/ice rise features.

Two very large grounded icebergs are included. Data are in an ascii arc/info export file format as geographic coordinates on the ITRF1996 system and contains attribute information. ERS-SAR data, copyright ESA, 1993, 1996 Radarsat data, copyright Canadian Space Agency, Agence spatiale canadienne, 1997.

This work was completed as part of ASAC projects 454, 1125 and 2224 (ASAC_454, ASAC_1125 and ASAC_2224).