极地研究

极地研究 ›› 2014, Vol. 26 ›› Issue (3): 342-351.DOI: 10.13679/j.jdyj.2014.2.342

• 研究论文 • 上一篇    下一篇

南极罗斯海2012年夏季海冰特征分析

赵杰臣1 张林1 田忠翔1 李明1 惠凤鸣2 李春花1 韩红卫3   

  1.  
    1国家海洋局海洋灾害预报技术研究重点实验室 国家海洋环境预报中心，北京 100081；
    2全球变化与地球系统科学研究院 北京师范大学，北京 100875；
    3海岸和近海工程国家重点实验室 大连理工大学，辽宁 大连 116024
  • 收稿日期:2013-05-15 修回日期:2013-07-18 出版日期:2014-09-30 发布日期:2014-09-30
  • 通讯作者: 赵杰臣
  • 基金资助:

    南极下降风观测和数值模拟研究;南极普里兹湾海冰反照率观测和参数化研究;国家十二五极地考察专项;十二五科技支撑 极地海冰数值预报关键技术研究;南极中山站周边固定冰厚度的多元越冬调查

SEA ICE DISTRIBUTION IN THE ROSS SEA, ANTARCTICA, DURING THE AUSTRAL SUMMER OF 2012

ZhaoJiechen1, Zhang Lin1, Tian Zhongxiang1, Li Ming1, Hui Fengming2, Li Chunhua1, Han Hongwei3   

  1.  
    1Key Laboratory of Research on Marine Hazards Forecasting, State Oceanic Administration, Beijing 100081, China;
    2College of Global Change and Earth System Science (GCESS), Beijing Normal University, Beijing 100875, China;
    3State Key Laboratory of Coastal and Offshore Engineering, Dalian University of Technology, Dalian 116024, China
  • Received:2013-05-15 Revised:2013-07-18 Online:2014-09-30 Published:2014-09-30
  • Contact: Jie-Chen ZHAO

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被引次数

9

摘要： 利用卫星海冰密集度资料和船基海冰走航观测数据分析了2012年12月至2013年3月南极罗斯海海冰密集度、厚度、和浮冰尺寸等参数的时空变化特征。12月下旬罗斯海西侧浮冰区宽约1000km，沿雪龙船航线平均密集度在5成以上，平均海冰厚度为100cm，平均冰上积雪厚度为16cm，高密集度区域主要为尺寸较小的块浮冰（2－20m）和小浮冰（20－100m），低密集度区域主要为大尺寸浮冰（500－2000m）。1月和2月罗斯海大部分海域无海冰覆盖，3月海冰迅速冻结，下旬即覆盖整个罗斯海。SSMIS和AMSR2两种卫星遥感数据均能较好反映航线上的真实海冰密集度状况，但AMSR2产品与观测符合更好。本文的分析结果可帮助我们了解罗斯海海冰的时空特征，为我国后续罗斯海科考提供参考。

关键词: 南极, 罗斯海, 夏季海冰, 走航观测

Abstract: We analyzed the distribution of sea ice in the Ross Sea during the austral summer of 2012. Parameters including sea ice concentration, thickness, and floe size were investigated using satellite data and ship-based observations. In late December sea ice extent was about 1 000 km from north to south, average sea ice concentration was greater than 50%, average sea ice thickness was about 100 cm, and average snow depth was about 16 cm. In areas of high ice concentration, ice cakes (2–20 m) and small floes (20–100 m) predominated, while in areas of low ice concentration medium floes (100–500 m) and big floes (500–200 m) predominated. Most of the waters were ice-free in January and February, but in March sea ice grew rapidly and by April the entire Ross Sea was covered with ice. Sea ice concentrations derived from AMSR2 and SSMIS were in accordance with the field observations in most locations, with deviations of 15% and 20%, respectively. Therefore, AMSR2 performed better. The results of this paper provide a good reference for future CHINARE Ross Sea cruises.

Key words: Antarctica, Ross Sea, austral Summer, sea ice, ship-based observations