Bedmap2: improved ice bed, surface and thickness datasets for Antarctica

Abstract. We present Bedmap2, a new suite of gridded products describing surface elevation, ice-thickness and the seafloor and subglacial bed elevation of the Antarctic south of 60° S. We derived these products 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,…

• SR
  Sight Research UK

  Awards: NE/G014248/1, NE/F015526/1, bas0100027, NE/F016646/2, NE/H021078/2, NE/G013071/2, bas0100028, NE/J008087/1, NE/J005665/2, bas0100026
• NE
  Natural Environment Research Council

  Awards: NE/G014248/1, NE/G013071/2, bas0100026, NE/J008087/1, bas0100027, NE/F015526/1, bas0100028, NE/H021078/2, NE/J005665/2, NE/F016646/2
• BA
  British Antarctic Survey