Shenjie Zhou¹, Pierre Dutrieux¹, Andrew Meijers¹, Claudia Giulivi², Won Sang Lee³, Tae-Wan Kim⁴, Tore Hatterman⁵ and Markus A Janout⁶, (1)NERC British Antarctic Survey, Cambridge, United Kingdom, (2)Lamont-Doherty Earth Observatory, New York, United States, (3)Korea Polar Research Institute, Division of Glacier and Earth Sciences, Incheon, South Korea, (4)KOPRI Korea Polar Research Institute, Incheon, South Korea, (5)Norwegian Polar Institute, Tromso, Norway, (6)Alfred Wegener Institute Helmholtz-Center for Polar and Marine Research Bremerhaven, Bremerhaven, Germany