globalchange  > 影响、适应和脆弱性
DOI: 10.5194/tc-7-1057-2013
Scopus记录号: 2-s2.0-84880542676
论文题名:
Summer sea ice characteristics and morphology in the Pacific Arctic sector as observed during the CHINARE 2010 cruise
作者: Xie H; , Lei R; , Ke C; , Wang H; , Li Z; , Zhao J; , Ackley S; F
刊名: Cryosphere
ISSN: 19940416
出版年: 2013
卷: 7, 期:4
起始页码: 1057
结束页码: 1072
语种: 英语
英文关键词: comparative study ; data set ; electromagnetic method ; ice thickness ; optimization ; sea ice ; summer ; tracking ; Arctic Ocean ; China
英文摘要: In the summer of 2010, atmosphere-ice-ocean interaction was studied aboard the icebreaker R/V Xuelong during the Chinese National Arctic Research Expedition (CHINARE), in the sea ice zone of the Pacific Arctic sector between 150 W and 180 W up to 88.5 N. The expedition lasted from 21 July to 28 August and comprised of ice observations and measurements along the cruise track, 8 short-term stations and one 12-day drift station. Ship-based observations of ice thickness and concentration are compared with ice thickness measured by an electromagnetic induction device (EM31) mounted off the ship's side and ice concentrations obtained from AMSR-E. It is found that the modal thickness from ship-based visual observations matches well with the modal thickness from the mounted EM31. A grid of 8 profiles of ice thickness measurements (four repeats) was conducted at the 12-day drift station in the central Arctic (∼ 86 50' N-87 20' N) and an average melt rate of 2 cm day-1, primarily bottom melt, was found. As compared with the 2005 data from the Healy/Oden Trans-Arctic Expedition (HOTRAX) for the same sector but ∼ 20 days later (9 August to 10 September), the summer 2010 was first-year ice dominant (vs. the multi-year ice dominant in 2005), 70% or less in mean ice concentration (vs. 90% in 2005), and 94-114 cm in mean ice thickness (vs. 150 cm in 2005). Those changes suggest the continuation of ice thinning, less concentration, and younger ice for the summer sea ice in the sector since 2007 when a record minimum sea ice extent was observed. Overall, the measurements provide a valuable dataset of sea ice morphological properties over the Arctic Pacific Sector in summer 2010 and can be used as a benchmark for measurements of future changes. © Author(s) 2013.
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/74979
Appears in Collections:影响、适应和脆弱性
气候变化与战略

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作者单位: Laboratory for Remote Sensing and Geoinformatics, University of Texas at San Antonio, TX 78249, United States; Key Laboratory for Polar Science of the State Oceanic Administration, Polar Research Institute of China, Shanghai, 200136, China; School of Geographic and Oceanographic Sciences, Nanjing University, Nanjing, 210093, China; Department of Earth Sciences, Zhejiang University, Hangzhou, 310027, China; State Key Laboratory of Coastal and Offshore Engineering, Dalian University of Technology, Dalian, 116024, China; College of Physical and Environmental Oceanography, Ocean University of China, Qindao, 266100, China

Recommended Citation:
Xie H,, Lei R,, Ke C,et al. Summer sea ice characteristics and morphology in the Pacific Arctic sector as observed during the CHINARE 2010 cruise[J]. Cryosphere,2013-01-01,7(4)
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