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Sea-ice conditions in the Adelie Depression, Antarctica, during besetment of the icebreaker RV Xuelong

Citation

Zhai, M and Li, X and Hui, F and Cheng, X and Heil, P and Zhao, T and Jiang, T and Cheng, C and Ci, T and Liu, Y and Chi, Z and Liu, J, Sea-ice conditions in the Adelie Depression, Antarctica, during besetment of the icebreaker RV Xuelong, Annals of Glaciology, 56, (69) pp. 160-166. ISSN 0260-3055 (2015) [Refereed Article]


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Copyright Statement

Copyright 2015 The Author(s) Licensed under Creative Commons Attribution 4.0 International (CC BY 4.0) http://creativecommons.org/licenses/by/4.0/

DOI: doi:10.3189/2015AoG69A007

Abstract

During the 30th Chinese Antarctic Expedition in 2013/14, the Chinese icebreaker RV Xuelong answered a rescue call from the Russian RV Akademik Shokalskiy. While assisting the repatriation of personnel from the Russian vessel to the Australian RV Aurora Australis, RV Xuelong itself became entrapped within the compacted ice in the Adélie Depression region. Analysis of MODIS and SAR imagery provides a detailed description of the regional sea-ice conditions which led to the 6 day long besetment of RV Xuelong. The remotely sensed imagery revealed four stages of sea-ice characteristics during the entrapment: the gathering, compaction, dispersion and calving stages. Four factors characterizing the local sea-ice conditions during late December 2013 and early January 2014 were identified: surface component of the coastal current; near-surface wind; ocean tides; and surface air temperature. This study demonstrates that shipping activity in ice-invested waters should be underpinned by general knowledge of the ice situation. In addition, during such activity high spatiotemporal resolution remotely sensed data should be acquired regularly to monitor local and regional sea-ice changes with a view to avoiding the besetment of vessels.

Item Details

Item Type:Refereed Article
Keywords:remote sensing, sea-ice dynamics
Research Division:Earth Sciences
Research Group:Oceanography
Research Field:Physical Oceanography
Objective Division:Environment
Objective Group:Physical and Chemical Conditions of Water
Objective Field:Physical and Chemical Conditions of Water in Marine Environments
Author:Heil, P (Dr Petra Heil)
ID Code:106842
Year Published:2015
Web of Science® Times Cited:2
Deposited By:CRC-Antarctic Climate & Ecosystems
Deposited On:2016-02-23
Last Modified:2017-10-31
Downloads:58 View Download Statistics

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