Diverse landscapes beneath Pine Island Glacier influence ice flow

This work was supported by funding from the UK Natural Environment Research Council (NERC) iSTAR Programme (Grants NE/J005665 and NE/K011189), NERC grants NE/B502287/1 and NE/J004766/1 and the British Antarctic Survey (BAS) Polar Science for Planet Earth Programme. D.E.S. was supported by a NASA NESSF fellowship (NNX12AN36H). Bathymetric data used for Fig. 2c and f were sourced from the Bolin Centre Database Oden Mapping Data (cruise OSO 0910; http://oden.geo.su.se/oso0910) and NSF/IEDA Marine Geoscience Data System (http://www.marine-geo.org/tools/search/Files.php?data_set_uid=20080) respectively, and we thank the lead authors M. Jakobsson and F.O. Nitsche for their lodging. All fieldwork was supported by the staff at BAS’s Rothera Research Station and members of the iSTAR Traverse. In particular, we thank James Wake, Tim Gee, Jonny Yates (2013/14), David Routledge (2010/11) and Feargal Buckley, Chris Griffiths and Julian Scott (2007/08) for their help with data acquisition. We thank three anonymous referees for thorough and constructive reviews, which improved the final form of the manuscript.Peer reviewedPublisher PD