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Iceberg calving contributes to the most part of Antarctic mass loss,the existence of icebergs can release large amount of freshwater which can influence ocean circulation.However,the detailed drifting dynamics process of icebergs have not been well studied previously.Here we monitor the evolution process of large iceberg C28 in the period from the calving event at Mertz Ice Tongue in February 2010 until April 2012 by means of continuously multiple-source remotely sensed data.Based on the iceberg shape delineated from the ENVISAT ASAR images and ice thickness derived from Cryosat-2 data,we demonstrate that the area and thickness of icebergs are decreasing constantly when drifting westwards and anticlockwise under the effects of Coriolis Effect and ocean currents.The analysis of iceberg calving and basal melting amounts shows: 1)the iceberg calving amount in winter is higher than in summer; 2)the calving amount of iceberg drifting in open water is much higher than in grounding state; 3)basal melting plays a primary role in iceberg mass loss process.Combining with bedmap-2 products,we also found submarine topography is the main cause of different drifting routes of icebergs C28A and C28B as well as C28B's two-year stranding on Petersen Bank.Besides,this research also found that ocean currents and sea surface winds can together result in the drastic change of iceberg drifting direction,indicating a more complex interaction process between Mertz icebergs and surrounding environment.