Abstract:

The route from Zhongshan Station to Dome A is one of the most important expedition routes of the ITASE project. China carried out 3 inland traverses during the 1996/1997, 1997/1998, 1998/1999 Antarctic summer seasons respectively. Some GPS points were set up,surveyed and resurveyed along the traverse route. The results for the GPS data processing indicate that the ice flows with an 8-24m/a velocity to the northwest, that is to say to the foot of the Lambert Glacier. Moreover, the nearer to the edge of the ice sheet, the faster the flow is. The maximum flow velocity is about 100m/a. Finally, due to the ice flow, a 0.2-1m/a sedimentation rate for the GPS points is achieved.