Davies, D.Bingham, R. G.Graham, A. G. C.Spagnolo, M.Dutrieux, P.Vaughan, D. G.Jenkins, A.Nitsche, F. O.2017-10-192017-10-192017-09Davies, D, Bingham, R G, Graham, A G C, Spagnolo, M, Dutrieux, P, Vaughan, D G, Jenkins, A & Nitsche, F O 2017, 'High-resolution sub-ice-shelf seafloor records of 20th-century ungrounding and retreat of Pine Island Glacier, West Antarctica', Journal of Geophysical Research: Earth Surface, vol. 122, no. 9, pp. 1698-1714. https://doi.org/10.1002/2017JF0043112169-9003ORCID: /0000-0002-2753-338X/work/45204740http://hdl.handle.net/2164/9471This work was supported by funding from the UK Natural Environment Research Council (NERC) iSTAR Programme Grants NE/J005665/2 and NE/J005770/1 and NERC Grant NE/G001367/1. DD was supported by NERC Training Grant NE/K011189/1. FON was supported by NSF grant ANT-838735. MS was supported by NERC Grant NE/J004766/1. AJ We thank the Autosub technical teams led by Steve McPhail and the Captain and cruise participants of RRS James Clark Ross cruise JR294/295 and RVIB Nathaniel B Palmer cruise NBP09-01 for conducting the AUV operations. We thank Julian Dowdeswell and two anonymous reviewers for constructive reviews which improved the clarity of the manuscript. Data used in this article can be obtained from the UK Polar Data Centre.172395160engSDG 14 - Life Below WaterPine Island GlacierWest Antarctic Ice Sheetautonomous underwater vehicleice sheet dynamicsbedformsmarine geophysicsQE GeologyNatural Environment Research Council (NERC)NE/J005665/2NE/J005770/1NE/G001367/1NE/K011189/1NE/J004766/1QEJournal article10.1002/2017JF0043111229