BAS Thematic Map Series Sheet 3: Bedmap 3 – Bed Topography of Antarctica [Flat]

This geophysical and glaciological map shows the surface of the bed beneath the
Antarctic Ice Sheet. The surface elevation was created using data from a variety of
sources, including many substantial surveys completed since the original Bedmap
compilation (Bedmap1) in 2001. In particular, the Bedmap2 ice thickness grid is made
from 25 million measurements, over two orders of magnitude more than were used in
Bedmap1. In most parts of Antarctica the subglacial landscape is visible in much greater
detail than was previously available and the improved data coverage has in many areas
revealed the full scale of mountain ranges, valleys, basins and troughs, only fragments of
which were previously indicated in local surveys.
The map shows the elevation data with key place names and the coastline and
grounding line indicated. The map also includes cross-sectional profiles through East and
West Antarctica and separate panels showing the geographical distribution of primary
survey data and reliability of the bed surface. On the reverse side is an oblique view of
the continent with information and statistics given regarding key areas of interest. [Flat]

Author BAS

Format Flat

ISBN 9780856652363

Scale 1:10 000 000

Version B

Year Published 2024