In the framework of the European Science Foundation Project, named EPICA (Europea Project for Ice Coring in Antarctica) an international plan for deep ice coring drilling in Antarctica was established, with the purpose of studying environmental aspects of global relevance. The detailed investigation of the ice flow is of fundamental importance, together with direct dating techniques, for a correct interpretation of ice core and particularly to date deep ice. The strain net is composed by 37 points, distributed on four concentric rings respectively at 3, 6, 12,5 and 25 kilometers from the center (DORIS Point)
Four Trimble 4000 SSE and one Trimble 4000STD receivers were used. SSE receivers were carried on vehicles and point by point installed, while the STD was set up on a fixed position (point 1000) for whole the survey. Data processing of dual frequency observations was performed by Geotracer software v.2.1.