Model simulations of the annual cycle of the landfast ice thickness in the East Siberian Sea

Model simulations of the annual cycle of the landfast ice thickness in the East Siberian Sea

YANG Yu;Matti Leppranta;LI Zhijun;Bin Cheng;ZHAI Mengxi;Denis Demchev

【期刊名称】《极地科学进展(英文版)》 【年(卷),期】2015(000)002

【摘要】The annual cycle of the thickness and temperature of landfast sea ice in the East Siberian Sea has been examined using a one-dimensional thermodynamic model. The model was calibrated for the year August 2012–July 2013, forced using the data of the Russian weather station Kotel’ny Island and ECMWF reanalyses. Thermal growth and decay of ice were reproduced well, and the maximum annual ice thickness and breakup day became 1.64 m and the end of July. Oceanic heat lfux was 2 W.m–2 in winter and raised to 25 W.m–2 in summer, albedo was 0.3–0.8 depending on the surface type (snow/ice and wet/dry). The model outcome showed sensitivity to the albedo, air temperature and oceanic heat lfux. The modelled snow cover was less than 10 cm having a small inlfuence on the ice thickness. In situ sea ice thickness in the East Siberian Sea is rarely available in publications. This study provides a method for quantitative ice thickness estimation by modelling. The result can be used as a proxy to understand the sea ice conditions on the Eurasian Arctic coast, which is important for shipping and high-resolution Arctic climate modelling.

【总页数】11页(168-178) 【关键词】

【作者】YANG Yu;Matti Leppranta;LI Zhijun;Bin Cheng;ZHAI Mengxi;Denis Demchev

【作者单位】Department of Basic Sciences, Shenyang Institute of Engineering, Shenyang 110136, China;Department of Physics, University of Helsinki, Fi-00014 Helsinki, Finland;State Key Laboratory of Coastal and 0ffshore Engineering, Dalian University of Technology, Dalian 116024, China;Finnish Meteorological Institute, Fi-00101 Helsinki, Finland;Department of Physics, University of Helsinki, Fi-00014 Helsinki, Finland;Nansen International Environmental Remote Sensing Centre NIERSC, Saint-Petersburg 199034, Russia 【正文语种】英文 【中图分类】 【文献来源】

https://www.zhangqiaokeyan.com/academic-journal-cn_advances-polar-science_thesis/0201252530983.html 【相关文献】

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