icsinPpr|Dsuso ae icsinPpr|Dsuso ae | Paper Discussion | Paper Discussion | Paper Discussion | Paper Discussion The Cryosphere Discuss., 6, 4305–4361, 2012 www.the-cryosphere-discuss.net/6/4305/2012/ The Cryosphere doi:10.5194/tcd-6-4305-2012 Discussions TCD © Author(s) 2012. CC Attribution 3.0 License. 6, 4305–4361, 2012

This discussion paper is/has been under review for the journal The Cryosphere (TC). Bedmap2: improved Please refer to the corresponding final paper in TC if available. ice bed, surface and thickness datasets Bedmap2: improved ice bed, surface and for Antarctica thickness datasets for Antarctica P. Fretwell et al.

1,* 1,* 1 2 1 P. Fretwell , H. D. Pritchard , D. G. Vaughan , J. L. Bamber , N. E. Barrand , Title Page R. Bell3, C. Bianchi4, R. G. Bingham5, D. D. Blankenship6, G. Casassa7, G. Catania6, D. Callens8, H. Conway9, A. J. Cook10, H. F. J. Corr1, D. Damaske11, Abstract Introduction V. Damm11, F. Ferraccioli1, R. Forsberg12, S. Fujita13, P. Gogineni14, Conclusions References J. A. Griggs2, R. C. A. Hindmarsh1, P. Holmlund15, J. W. Holt6, R. W. Jacobel16, 1 17 1 1 18 19 A. Jenkins , W. Jokat , T. Jordan , E. C. King , J. Kohler , W. Krabill , Tables Figures M. Riger-Kusk20, K. A. Langley21, G. Leitchenkov22, C. Leuschen14, 23 24 25 24 26 B. P. Luyendyk , K. Matsuoka , Y. Nogi , O. A. Nost , S. V. Popov , J I E. Rignot27, D. M. Rippin28, A. Riviera7, J. Roberts29, N. Ross30, M. J. Siegert2, A. M. Smith1, D. Steinhage19, M. Studinger31, B. Sun32, B. K. Tinto3, J I 17 6 32 33 B. C. Welch , D. A. Young , C. Xiangbin , and A. Zirizzotti Back Close 1 British Antarctic Survey, Cambridge, UK Full Screen / Esc 2School of Geographical Sciences, University of Bristol, UK 3Lamont-Doherty Earth Observatory of Columbia University, Palisades, USA Printer-friendly Version 4Istituto Nazionale di Geofisica e Vulcanologia, Rome, Italy 5 School of Geosciences, University of Aberdeen, UK Interactive Discussion 6Institute for Geophysics, University of Texas at Austin, USA 4305 icsinPpr|Dsuso ae icsinPpr|Dsuso ae | Paper Discussion | Paper Discussion | Paper Discussion | Paper Discussion 7Centro de Estudios Cientificos, Santiago, Chile 8Laboratoire de Glaciologie, Universite´ Libre de Bruxelles, Brussels, Belgium TCD 9Earth and Space Sciences, University of Washington, Seattle, USA 6, 4305–4361, 2012 10Department of Geography, Swansea University, Swansea, UK 11Federal Institute for Geosciences and Natural Resources, Hannover, Germany 12National Space Institute, Technical University of Denmark, Denmark Bedmap2: improved 13National Institute of Polar Research, Tokyo, Japan ice bed, surface and 14Electrical Engineering & Computer Science, University of Kansas, Lawrence, USA thickness datasets 15 Stockholm University, Stockholm, Sweden for Antarctica 16St. Olaf College, Northfield, MN 55057, USA 17Alfred Wegener Institute, Bremerhaven, Germany P. Fretwell et al. 18Norwegian Polar Institute, Fram Centre, Tromsø, Norway 19NASA Wallops Flight Facility, Virginia, USA 20College of Science, University of Canterbury, Christchurch, New Zealand Title Page 21Department of Geosciences, University of Oslo, Norway Abstract Introduction 22Institute for Geology and Mineral Resources of the World Ocean, St.-Petersburg, Russia 23 Geology, University of California in Santa Barbera, USA Conclusions References 24Norwegian Polar Institute, Tromsø, Norway 25National Institute of Polar Research, Tokyo, Japan Tables Figures 26Polar Marine Geosurvey Expedition, St.-Petersburg, Russia 27 School of Physical Sciences, University of California, Irvine, USA J I 28Environment Department, University of York, Heslington, York, YO10 5DD, UK 29Department of Sustainability, Environment, Water, Population and Communities, Australian J I Antarctic Division, Hobart, Tasmania, Australia Back Close 30School of Geography, Politics and Sociology, Newcastle University, Newcastle upon Tyne, NE1 7RU, UK Full Screen / Esc 31Joint Center for Earth Systems Technology, NASA Goddard Space Flight Center, Greenbelt, USA Printer-friendly Version 32P