Investigations on tidal dynamics and mass balance of ice shelves an on ice-induced crustal deformations in the area of the Pine Island, West Antarctica (R/V "Polarstern" cruise ANT-XXVI/3)

南极洲的冰架是气候变化的敏感指标。在本提案中，将在南极洲/松岛湾的阿蒙森海区进行密集调查。调查将把遥感数据与现场观测结合起来，这些数据将在定于2010年春季进行的Polarstein巡航ANT-XXVI/3期间收集。新的数据将与2006年在极地巡航ANT-XXIII/4期间进行的观测结合起来。主要科学目标是确定松岛湾冰架的流动状况、海洋潮汐和冰架与海洋的相互作用。冰架的稀释率将被确定。此外，还将利用基岩上的GPS重复观测，在板块运动学和区域形变的背景下研究地壳的水平运动。将利用场地垂直位移来完善目前关于调查区域内冰川均衡运动的知识。

The Ice shelves of Antarctica are sensitive indicators of climate change. In the present proposal intensive investigations shall be carried out in the Amundsen Sea sector of Antarctica/Pine Island Bay. The investigations will combine remote sensing data with in situ observations, which will be gathered during the POLARSTERN cruise ANT-XXVI/3 to be scheduled for spring 2010. The new data shall be combined with observations carried out 2006 during the POLARSTERN cruise ANT-XXIII/4. The main scientific goals are the determination of the flow regime of the ice shelves in Pine Island Bay, of the ocean tides and of the ice shelf-ocean interactions. The thinning rates for the ice shelves will be determined. In addition, repeated GPS observation on bedrock will be used to investigate horizontal crustal movements in the context of plate kinematics and regional deformation. Vertical site displacements will be used to refine the present knowledge on glacial isostatic movements in the area of investigation.