海冰消融背景下北极增温的季节差异及其原因探讨

武丰民; 何金海; 祁莉; 李文铠

doi:10.3969/J.ISSN.0253-4193.2014.03.005

海冰消融背景下北极增温的季节差异及其原因探讨

doi: 10.3969/J.ISSN.0253-4193.2014.03.005

南京信息工程大学气象灾害教育部重点实验室, 江苏南京 210044

基金项目: 国家重点基础研究发展计划（973计划）（2012CB417403）；国家自然科学基金创新群体项目（41221064）；长江学者和创新团队发展计划资助（PCSIRT）；江苏高校优势学科建设工程资助项目（PAPD）；江苏省研究生培养创新工程（N0782002113）。

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出版历程
- 收稿日期: 2013-02-05
- 修回日期: 2013-08-27

The seasonal difference of Arctic warming and it’s mechanism under sea ice cover diminishing

Key Laboratory of Meteorological Disaster of Ministry of Education, Nanjing University of Information Science and Technology, Nanjing 210044, China

摘要

摘要: 运用哈德莱中心第一套海冰覆盖率（HadISST1）、欧洲中心（ERA_Interim）的温度以及NCEP第一套地表感热通量、潜热通量等资料，研究了1979—2011年33 a来北极海冰消融的季节特点和空间特征，并从反照率——温度正反馈与地表感热通量、潜热通量等方面分析了海冰减少对北极增温影响的季节差异。结果表明，北极海冰在秋季和夏季的减少范围明显大于冬季和春季，而北极地表升温却在秋季和冬季最显著，夏季最为微弱，且夏季的增温趋势廓线也与秋冬季显著不同。这主要是因为夏季是融冰季，海冰融化将吸收潜热。且此时北极低空大气温度高于海表温度，海水相当于大气的冷源。随着海冰的消融，更多的热量由大气传入海洋用于融冰和加热上层海水，这使得夏季的低空大气不能显著升温。而在秋冬季，海冰凝结释放潜热，且此时低空大气温度远低于海水温度，海冰的减少使得海水将更多热量释放到大气中导致低空大气显著增暖。海水对大气的这种延迟放热机制是北极低空在夏季增温不显著而在秋冬季增温显著的主要原因。此外，秋冬季的海冰减少与北极近地面升温具有非常一致的空间分布，北冰洋东南边缘和巴伦支海北部分别是秋季和冬季海气相互作用的关键区域。
- 北极海冰消融 /
- 北极增温 /
- 季节差异 /
- 延迟放热
Abstract: The sea ice concentration data, atmospheric temperature data and surface sensible and latent heat net flux data from HadISST1, ERA_Interim and NCEP respectively are examined to investigate the seasonal and spatial distribution variation of the diminishing Arctic sea ice from 1979 to 2011. Moreover, the seasonal atmospheric temperature change responding to Arctic sea ice loss are discussed by analyzing surface albedo feedback, surface sensible and latent heat net flux.Results show that the strongest surface warming occurs in winter and fall and the largest sea ice reduction takes place in summer and fall. Note that the weakest surface warming occurs in summer. This is principally due to the sea ice melt in summer which absorbs latent heat and the warmer lower atmosphere than ocean surface. With the decreasing sea ice, more heat is transferred from the atmosphere to ocean leading to the ice-melt and upper level sea temperature warming. As a result, the near-surface warming is modest in summer. By contrast, sea ice refreezes in winter and fall and releases latent heat. Meanwhile, less ice cover causes more heat transferred from ocean to atmosphere which warms the low level air. This delayed warming effect plays an important role in the different seasonal air temperature change in Arctic. Besides, the regions of largest warming are co-located with those of greatest sea ice reductions. The southeast Arctic and northern Barents Sea are the key areas of the air-sea interaction in fall and winter, respectively.
- Arctic’s rapidly shrinking sea ice /
- Arctic warming /
- seasonal difference /
- delayed warming effect

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参考文献(29)

俞永强, 陈文, 等. 海-气相互作用对我国气候变化的影响[M].北京:气象出版社, 2005.

张璐, 张占海, 李群, 等. 近30年北极海冰异常变化趋势[J].极地研究, 2009, 21(4):344—352.

Stroeve J C, Serreze M C, Holland M M, et al. The Arctic's rapidly shrinking sea ice cover: a research synthesis[J]. Climatic Change, 2012, 110(3):1005—1027.

Parkinson C L, Cavalieri D J. Arctic sea ice variability and trends, 1979-2008[J]. Journal of Geophysical Research, 2012, 113(C7): C07003.

Serreze M C, Francis J A. The Arctic amplification debate[J]. Climatic Change, 2006, 76(3): 241—264.

Seierstad I A, Bader J. Impact of projected Arctic sea ice reduction on extratropical storminess and NAO[J]. Climate Dynamics, 2009, 33: 937—943.

Overland J, Wang M. Large-scale atmospheric circulation changes are associated with the recent loss of Arctic sea ice[J]. Tellus:A, 2010, 62: 1—9.

Dickson R R, Meincke J, Malmberg S A, et al. The "great salinity anomaly" in the northern North Atlantic 1968—1982[J]. Progress in Oceanography, 1988, 20(2): 103—151.

Screen J A, Simmonds I. The central role of diminishing sea ice in recent Arctic temperature amplification[J]. Nature, 2010, 464(7293): 1334—1337.

黄士松, 杨修群, 蒋全荣, 等. 极地海冰变化对气候的影响[J]. 气象科学, 1995, 15(4): 46—56.

Meiji Honda, Jun Inoue, Shozo Yamane. Influence of low Arctic sea-ice minima on anomalously cold Eurasian winters[J]. Geophysical Research Letters, 2009, 36:L08707, doi: 10.1029/2008GL037079.

Francis J A, Vavrus S J. Evidence linking Arctic amplification to extreme weather in mid-latitudes[J]. Geophysical Research Letters, 2012, 39(6): L06801.

Liu Jiping, Judith A Curry, Wang Huijun, et al. Impact of declining Arctic sea ice on winter snowfall[J]. PNAS, 2012, 109(11):4074—4079, doi: 10.1073/pnas. 1114910109.

武炳义, 卞林根, 张人禾. 冬季北极涛动和北极海冰变化对东亚气候变化的影响[J]. 极地研究, 2004, 16(3): 211—220.

Wu B, Zhang R, Wang B, et al. On the association between spring Arctic sea ice concentration and Chinese summer rainfall[J]. Geophysical Research Letters, 2009, 36:L09501, doi: 10.1029/2009GL037299.

武炳义, 苏京志, 张人禾. 秋-冬季节北极海冰对冬季西伯利亚高压的影响[J]. 科学通报, 2011, 56(27): 2335—2343.

Serreze M C, Barrett A P, Stroeve J C, et al. The emergence of surface-based Arctic amplification[J]. Cryosphere, 2009, 3:11—19, doi: 10.5194/tc-3-11-2009.

Screen J A, Simmonds I. Increasing fall-winter energy loss from the Arctic Ocean and its role in Arctic temperature amplification[J]. Geophysical Research Letters, 2010, 37:L16707, doi: 10.1029/2010GL044136.

Deser C, Tomas R, Alexander M, et al. The seasonal atmospheric response to projected Arctic sea ice loss in the late twenty-first century[J]. Journal of Climate, 2010, 23: 333—351.

Rayner N A, Parker D E, Horton E B, et al. Global analyses of sea surface temperature, sea ice, and night marine air temperature since the late nineteenth century[J]. Journal of Geophysical Research, 2003, 108(D14): 4407, doi: 10.1029/2002JD002670.

Dee D P, Uppala S M, Simmons A J, et al. The ERA-Interim reanalysis: configuration and performance of the data assimilation system[J]. QJR Meteorol Soc, 2011, 137: 553-597, doi: 10.1002/qj.828.

Winton M. Amplified Arctic climate change: what does surface albedo feedback have to do with it?[J]. Geophysical Research Letters, 2006, 33:L03701. doi: 10.1029/2005GL025244.

Lu J, Cai M. Seasonality of polar surface warming amplification in climate simulations[J]. Geophysical Research Letters, 2009, 36, doi: 10.1029/2009GL040133.

Graversen R G, Wang M. Polar amplification in a coupled model with locked albedo[J]. Climate Dynamics, 2009, 33: 629-643.

Perovich D, Richter-Menge J, Jones K, et al. Sunlight, water, and ice:Extreme Arctic sea ice melt during the summer of 2007[J]. Geophysical Research Letters, 2008, 35, doi: 10.1029/2008GL034007.

Wu B, Overland J, D'Arrigo R. Anomalous Arctic surface wind patterns and their impacts on September sea ice minima and trend[J]. Tellus A, 2012, 64:18590.

Francis J A, Chan W, Leathers D J, et al. Winter Northern Hemisphere weather patterns remember summer Arctic sea-ice extent[J]. Geophysical Research Letters, 2009, 36: L07503, doi: 10.1029/2009Gl037274.

Outten S D, Esau I. A link between Arctic sea ice and recent cooling trends over Eurasia[J]. Climatic Change, 2012, 110(3/4): 1069—1075.

Thompson D, Wallace J. 2001. Regional climate impacts of the Northern Hemisphere annular mode[J]. Science, 293:85—89.

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海冰消融背景下北极增温的季节差异及其原因探讨

doi: 10.3969/J.ISSN.0253-4193.2014.03.005

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The seasonal difference of Arctic warming and it’s mechanism under sea ice cover diminishing

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海冰消融背景下北极增温的季节差异及其原因探讨

doi: 10.3969/J.ISSN.0253-4193.2014.03.005

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出版历程

The seasonal difference of Arctic warming and it’s mechanism under sea ice cover diminishing

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出版历程

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