中国地理科学 ›› 2018, Vol. 28 ›› Issue (1): 38-46.doi: 10.1007/s11769-017-0929-z

• 论文 • 上一篇    下一篇

Spatio-temporal Variation of Arctic Sea Ice in Summer from 2003 to 2013

WU Mengquan1, JIA Lili1, XING Qianguo2, SONG Xiaodong3   

  1. 1. College of Resources and Environmental Engineering, Ludong University, Yantai 264025, China;
    2. Yantai Institute of Coastal Zone Research, Yantai 264003, China;
    3. College of Geomatics & Municipal Engineering, Zhejiang University of Water Resources and Electric Power, Hangzhou 310018, China
  • 收稿日期:2017-03-29 修回日期:2017-07-17 出版日期:2018-02-27 发布日期:2018-01-04
  • 通讯作者: WU Mengquan E-mail:irsa_wmq@163.com
  • 基金资助:

    Under the auspices of National Natural Science Foundation of China (No. 41676171), Qingdao National Laboratory for Marine Science and Technology of China (No. 2016ASKJ02), Natural Science Foundation of Shandong (No. ZR2015DM015), Yantai Science & Technology Project (No. 2013ZH094)

Spatio-temporal Variation of Arctic Sea Ice in Summer from 2003 to 2013

WU Mengquan1, JIA Lili1, XING Qianguo2, SONG Xiaodong3   

  1. 1. College of Resources and Environmental Engineering, Ludong University, Yantai 264025, China;
    2. Yantai Institute of Coastal Zone Research, Yantai 264003, China;
    3. College of Geomatics & Municipal Engineering, Zhejiang University of Water Resources and Electric Power, Hangzhou 310018, China
  • Received:2017-03-29 Revised:2017-07-17 Online:2018-02-27 Published:2018-01-04
  • Contact: 10.1007/s11769-017-0929-z E-mail:irsa_wmq@163.com
  • Supported by:

    Under the auspices of National Natural Science Foundation of China (No. 41676171), Qingdao National Laboratory for Marine Science and Technology of China (No. 2016ASKJ02), Natural Science Foundation of Shandong (No. ZR2015DM015), Yantai Science & Technology Project (No. 2013ZH094)

摘要:

The variation in Arctic sea ice has significant implications for climate change due to its huge influence on the global heat balance. In this study, we quantified the spatio-temporal variation of Arctic sea ice distribution using Advanced Microwave Scanning Radiometer (AMSR-E) sea-ice concentration data from 2003 to 2013. The results found that, over this period, the extent of sea ice reached a maximum in 2004, whereas in 2007 and 2012, the extent of summer sea ice was at a minimum. It declined continuously from 2010 to 2012, falling to its lowest level since 2003. Sea-ice extent fell continuously each summer between July and mid-September before increasing again. It decreased most rapidly in September, and the summer reduction rate was 1.35×105 km2/yr, twice as fast as the rate between1979 and 2006, and slightly slower than from 2002 to 2011. Area with >90% sea-ice concentration decreased by 1.32×107 km2/yr, while locations with >50% sea-ice concentration, which were mainly covered by perennial ice, were near the North Pole, the Beaufort Sea, and the Queen Elizabeth Islands. Perennial Arctic ice decreased at a rate of 1.54×105 km2 annually over the past 11 years.

关键词: sea ice, Advanced Microwave Scanning Radiometer (AMSR-E), climate change, Arctic, summer

Abstract:

The variation in Arctic sea ice has significant implications for climate change due to its huge influence on the global heat balance. In this study, we quantified the spatio-temporal variation of Arctic sea ice distribution using Advanced Microwave Scanning Radiometer (AMSR-E) sea-ice concentration data from 2003 to 2013. The results found that, over this period, the extent of sea ice reached a maximum in 2004, whereas in 2007 and 2012, the extent of summer sea ice was at a minimum. It declined continuously from 2010 to 2012, falling to its lowest level since 2003. Sea-ice extent fell continuously each summer between July and mid-September before increasing again. It decreased most rapidly in September, and the summer reduction rate was 1.35×105 km2/yr, twice as fast as the rate between1979 and 2006, and slightly slower than from 2002 to 2011. Area with >90% sea-ice concentration decreased by 1.32×107 km2/yr, while locations with >50% sea-ice concentration, which were mainly covered by perennial ice, were near the North Pole, the Beaufort Sea, and the Queen Elizabeth Islands. Perennial Arctic ice decreased at a rate of 1.54×105 km2 annually over the past 11 years.

Key words: sea ice, Advanced Microwave Scanning Radiometer (AMSR-E), climate change, Arctic, summer