Coen Hofstede is a member of Alfred Wegener Institute's (AWI) field glaciology group with more than two decades of experience in scientific and industrial applications of reflection seismics. His focus lies on small-scale active seismic surveys on Greenland Outlet Glaciers and Antarctica. He is in charge of AWI's seismic equipment. During the GHOST traverses, he will operate the vibroseismic source and seismic streamer to image the basal structure of Thwaites Glacier. That equipment is tailor made for such an operation and combines a seismic vibrator with a snowstreamer, towed by a tracked vehicle from shot location to shot location.This enables them to record around 20 km of profiles per day. He will perform subsequent data processing and interpretation, determining basal properties (acoustic impedance) and subglacial geologic structure.