Snow streamer (Photo: Olaf Eisen, Alfred-Wegener-Institut) Subglacial conditions play a key role in the most dynamic parts of the ice sheet: ice streams, outlet glaciers [...] high Alpine saddle, Colle Gnifetti. Gimballed geophone (Photo: Alfred-Wegener-Institut) Seismic data acquisition (seismics) is a technique to generate and record elastic or acoustic waves in the subsurface [...] marine seismic data collection. Seismics in west Greenland (Photo: Alfred-Wegener-Institut) Difficult terrain (Photo: Alfred-Wegener-Institut) Seismic waves penetrate through the ice sheet or shelf and are