The Colle Gnfetti is a glacier saddle in the Monte Rosa massif, Swiss Alps. With an altitude of 4450 m and an mean annual air temperature of about -14°C it resembles very well polar ice conditions. With easy access from Zermatt and the Capanna Margherita mountain hut near by it provides a great opportunity to test equipment nearby. Field surveys were carried out in 2008 and 2010 with radar and seimic equipment.

Radar measurements were used to investigate internal layers up to a depth of 45 m. These internal layers could be traced between the four ice cores KCI, KCS, CC and KCH (red lines) between the surface (blue line) and the glacier bed (black line).  

The traceable horizons could be used to compare the dating of the four ice cores.

The diving wave from the two seismic lines, north south (08001) and east west (08002) was used to derive a density depth profile comparable to the density data of the ice core KCI