Summer fast ice evolution off Zhongshan Station,Antarctica

查看全文 作　　者：[1]雷瑞波;[1]李志军;[2]张占海;[2]程言峰;[3]窦银科

机构地区：[1]State Key Laboratory of Coastal and Offshore Engineering,Dalian University of Technology;[2]Polar Research Institute of China;[3]Institute of Measuring and Controlling,Taiyuan University of Technology

出　　处：《Chinese Journal of Polar Science》索引2008年第19卷第1期,共9页

基　　金：supported by the National Natural Science Foundation of China under contract No.40676001; No.40233032,the National Key Technology R&D Program No.2006BAB18B03. 摘　　要：Based on the field data acquired in the program of fast ice observation off Zhongshan Station,Prydz Bay,East Antarctica during the austral summer 2005/ 2006,physical properties evolution of fast ice during the ice ablation season is ana- lyzed in detail.Results show that the annual maximum ice thickness in 2005 occurred in later November,and then ice started to melt,and the ablation duration was 62 days;sea water under the ice became warmer synchronously;corresponding to the warming sea ice temperature,a'relative cold mid-layer'appeared in sea ice;the fast ice marginal line recoiled back to the shore observably,and the recoil distance was 20.9 km from 18 December 2005 through 14 January 2006.In addition,based on the data of sea ice thickness survey along the investigation course of MV Xuelong on December 18 of 2005,the ice thickness distribution paten in the marginal ice zone have been described:sea ice thickness increased,but the diversity of floe ice thick- ness decreased from open water to fast ice zone distinctly. 关键词：固定冰物理特征南极洲夏季

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Summer fast ice evolution off Zhongshan Station,Antarctica

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