Anomalous extensive landfast sea ice in the vicinity of Inexpressible Island, Antarctica  

作　　者：ZHAI Mengxi ZHAO Tiancheng HUI Fengming CHENG Xiao LIUAobo YUAN Jiawei YU Yining DING Yifan 

机构地区：[1]MNR Key Laboratory for Polar Science,Polar Research Institute of China,Shanghai 200136,China [2]School of Environmental Science,Nanjing Xiaozhuang University,Nanjing 211171,China [3]School of Geospatial Engineering and Science,Sun Yat-Sen University,Guangzhou 510275,China [4]College of Global Change and Earth System Science,Beijing Normal University,Beijing 100875,China

出　　处：《Advances in Polar Science》2019年第4期406-411,共6页极地科学进展（英文版）

基　　金：supported by the National Natural Science Foundation of China (Grant nos. 41676176 and 41830536);the Open Fund of State Key Laboratory of Remote Sensing Science (Grant no. OFSLRSS201926)

摘　　要：On 10 December 2017,a Chinese research vessel R/V Xuelong encountered an extensive area of landfast ice offshore Inexpressible Island(Antarctica)near the location where the fifth Chinese Antarctic research station is to be built.Using multi-source satellite images and weather data,we analyzed the ice conditions during the event season and reconstructed the development of landfast ice.Two stages in late September and early October were identified as contributing to the final ice extent.These two events are highly related to local-and large-scale weather conditions.Satellite images from 2003 to 2017 showed that four in fifteen years experienced severe landfast ice conditions,suggesting that it is not a rare phenomenon.On 10 December 2017, a Chinese research vessel R/V Xuelong encountered an extensive area of landfast ice offshore Inexpressible Island(Antarctica) near the location where the fifth Chinese Antarctic research station is to be built. Using multi-source satellite images and weather data, we analyzed the ice conditions during the event season and reconstructed the development of landfast ice. Two stages in late September and early October were identified as contributing to the final ice extent. These two events are highly related to local-and large-scale weather conditions. Satellite images from 2003 to 2017 showed that four in fifteen years experienced severe landfast ice conditions, suggesting that it is not a rare phenomenon.

关 键 词：Inexpressible Island ANTARCTIC landfast ice Chinese Antarctic research station 

分 类 号：P73[天文地球—海洋科学]