An anomalous extensive landfast sea ice case in the vicinity of Inexpressible Island, Antarctica
Mengxi Zhai1, Tiancheng Zhao2, Fengming Hui3, Xiao Cheng3*, Aobo Liu4, Jiawei Yuan4, Yining Yu4, Yifan Ding4
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
On December 10, 2017, Chinese research vessel confronted an extensive area of landfast ice outside the Inexpressible Island, where the Chinese 5th Antarctic research station would be built. This brought difficulties to cargo unloading. Combining both multi-source satellite images and weather data, this study gives an overview of ice conditions during this event, and traced back to find out how this unexpected large ice area developed. Two stages in late September and early October are identified as the contribution to the final ice extent. They are highly related with local wind and temperature.
landfast sea ice, ice extent, Inexpressible Island