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The wintering filed observations of the landfast ice off Zhongshan Station, Prydz Bay, Antarctica,were carried out in 2012.The landfast ice was partly broken in January and re-frozen into new ice in the end of February.Two kinds of different growing curves of landfast ice were observed.The first-year ice grew quickly after its new formation, while the multi-year ice melted firstly in March and then started to grow from mid-April.Both the first-year ice and the multi-year ice reached their maximum in the end of October, with a thickness of 160.0 cm and 167.0 cm,respectively.