Vol.31, No.02. 2020
Table of Contents
LETTER | Surveying and Mapping
Anomalous extensive landfast sea ice in the vicinity of Inexpressible Island, Antarctica
Correspondence: email@example.com ORCID:
On 10 December 2017, a Chinese research vessel R/N 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.
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
Aoki S. 2017. Breakup of land-fast sea ice in Lützow-Holm Bay, East Antarctica, and its teleconnection to tropical Pacific sea surface temperatures. Geophys Res Lett, 44: 3219-3227.
Fraser A D, Massom R A, Michael K J, et al. 2012. East Antarctic landfast sea ice distribution and variability, 2000–2008. J Climate, 25(4): 1137-1156.
Heil P. 2006. Atmospheric conditions and fast ice at Davis, East Antarctica: A case study. J Geophys Res-Oceans, 111: C05009.
Lee S K, Volkov D L, Lopez H, et al. 2017. Wind-driven ocean dynamics impact on the contrasting sea-ice trends around West Antarctica. J Geophys Res-Oceans, 122(5): 4413-4430.
Parmiggiani F. 2011. Multi-year measurement of Terra Nova Bay winter polynya extents. Eur Phys J Plus, 126(4): 39.
Shepherd A, Fricker H A, Farrell S L. 2018. Trends and connections across the Antarctic cryosphere. Nature, 558(7709): 223-232.
Shu Q, Qiao F, Song Z, et al. 2012. Sea ice trends in the Antarctic and their relationship to surface air temperature during 1979–2009. Clim Dynam, 38(11-12): 2355-2363.
Turner J, Harangozo S A, Marshall G J, et al. 2002. Anomalous atmospheric circulation over the Weddell Sea, Antarctica during the Austral summer of 2001/02 resulting in extreme sea ice conditions. Geophys Res Lett, 29(24): 2160.
Turner J, Phillips T, Marshall G J, et al. 2017. Unprecedented springtime retreat of Antarctic sea ice in 2016. Geophys Res Lett, 44(13): 6868-6875.
Wang Z, Turner J, Sun B, et al. 2014. Cyclone-induced rapid creation of extreme Antarctic sea ice conditions. Sci Rep, 4: 5317.
WMO (World Meteorological Organization). 1970. WMO sea-ice nomenclature, terminology, codes and illustrated glossary. WMO/ DMM/BMO 259-TP-145.
Zhai M, Li X, Hui F, et al. 2015. Sea-ice conditions in the Adélie Depression, Antarctica, during besetment of the icebreaker RV Xuelong. Ann Glaciol, 56(69): 160-166.