Spatial and temporal evolution of landfast ice near Zhongshan Station, East Antarctica, over an annual cycle in 2011/2012

doi:10.1007/s13131-018-1339-5

	Spatial and temporal evolution of landfast ice near Zhongshan Station, East Antarctica, over an annual cycle in 2011/2012
	Zhao, Jiechen 1,2,3; Yang, Qinghua 4,5; Cheng, Bin 6; Lepparanta, Matti 7; Hui, Fengming 8; Xie, Surui 9; Chen, Meng 10; Yu, Yining 8; Tian, Zhongxiang 2; Li, Ming 2
刊名	ACTA OCEANOLOGICA SINICA
	2019-05
卷号	38 期号:5 页码:51-61
关键词	landfast ice thickness oceanic heat flux Prydz Bay East Antarctica
ISSN号	0253-505X
DOI	10.1007/s13131-018-1339-5
英文摘要	Annual observations of first-year ice (FYI) and second-year ice (SYI) near Zhongshan Station, East Antarctica, were conducted for the first time from December 2011 to December 2012. Melt ponds appeared from early December 2011. Landfast ice partly broke in late January, 2012 after a strong cyclone. Open water was refrozen to form new ice cover in mid-February, and then FYI and SYI co-existed in March with a growth rate of 0.8 cm/d for FYI and a melting rate of 2.7 cm/d for SYI. This difference was due to the oceanic heat flux and the thickness of ice, with weaker heat flux through thicker ice. From May onward, FYI and SYI showed a similar growth by 0.5 cm/d. Their maximum thickness reached 160.5 cm and 167.0 cm, respectively, in late October. Drillings showed variations of FYI thickness to be generally less than 1.0 cm, but variations were up to 33.0 cm for SYI in March, suggesting that the SYI bottom was particularly uneven. Snow distribution was strongly affected by wind and surface roughness, leading to large thickness differences in the different sites. Snow and ice thickness in Nella Fjord had a similar "east thicker, west thinner" spatial distribution. Easterly prevailing wind and local topography led to this snow pattern. Superimposed ice induced by snow cover melting in summer thickened multi-year ice, causing it to be thicker than the snow-free SYI. The estimated monthly oceanic heat flux was similar to 30.0 W/m(2) in March-May, reducing to similar to 10.0 W/m(2) during July-October, and increasing to similar to 15.0 W/m(2) in November. The seasonal change and mean value of 15.6 W/m(2) was similar to the findings of previous research. The results can be used to further our understanding of landfast ice for climate change study and Chinese Antarctic Expedition services.
资助项目	Key Laboratory of Land Surface Process and Climate Change in Cold and Arid Regions, CAS[LPCC2018001] ; Key Laboratory of Land Surface Process and Climate Change in Cold and Arid Regions, CAS[LPCC2018005]
WOS关键词	SEA-ICE ; HEAT-FLUX ; GROWTH ; VARIABILITY ; THICKNESS ; OCEAN ; MODEL ; BAY
WOS研究方向	Oceanography
语种	英语
出版者	SPRINGER
WOS记录号	WOS:000484973600005
内容类型	期刊论文
源URL	[http://ir.fio.com.cn:8080/handle/2SI8HI0U/30055]
专题	自然资源部第一海洋研究所
通讯作者	Yang, Qinghua; Hui, Fengming
作者单位	1.Ocean Univ China, Coll Ocean & Atmospher Sci, Qingdao 266100, Shandong, Peoples R China 2.Natl Marine Environm Forecasting Ctr, Beijing 100081, Peoples R China 3.Minist Nat Resources, Inst Oceanog 1, Qingdao 266061, Peoples R China 4.Sun Yat Sen Univ, Sch Atmospher Sci, Guangdong Prov Key Lab Climate Change & Nat Disas, Zhuhai 519082, Peoples R China 5.Southern Marine Sci & Engn Guangdong Lab Zhuhai, Zhuhai 519082, Peoples R China 6.Finnish Meteorol Inst, Helsinki 00101, Finland 7.Univ Helsinki, Inst Atmospher & Earth Sci, Helsinki 00014, Finland 8.Beijing Normal Univ, Coll Global Change & Earth Syst Sci GCESS, Beijing 100875, Peoples R China 9.Univ S Florida, Sch Geosci, Tampa, FL 33620 USA 10.Meteorol Serv Youyang Tujia & Miao Autonomous Cty, Chongqing 409800, Peoples R China
推荐引用方式 GB/T 7714	Zhao, Jiechen,Yang, Qinghua,Cheng, Bin,et al. Spatial and temporal evolution of landfast ice near Zhongshan Station, East Antarctica, over an annual cycle in 2011/2012[J]. ACTA OCEANOLOGICA SINICA,2019,38(5):51-61.
APA	Zhao, Jiechen.,Yang, Qinghua.,Cheng, Bin.,Lepparanta, Matti.,Hui, Fengming.,...&Zhang, Lin.(2019).Spatial and temporal evolution of landfast ice near Zhongshan Station, East Antarctica, over an annual cycle in 2011/2012.ACTA OCEANOLOGICA SINICA,38(5),51-61.
MLA	Zhao, Jiechen,et al."Spatial and temporal evolution of landfast ice near Zhongshan Station, East Antarctica, over an annual cycle in 2011/2012".ACTA OCEANOLOGICA SINICA 38.5(2019):51-61.