冀蕊,贾英来,吴一非,张杰

• 1:中国海洋大学海洋与大气学院海洋气象学系
• 2:舟山市气象局
• 3:泉州市气象局

摘要(Abstract)：

利用ERA5再分析资料，分析了山东半岛1979—2014年共36年间冬季极端低温特征，发现山东半岛地区伴随偏北大风的极端低温与黑潮延伸体区域海表面温度(Sea surface temperature, SST)暖异常密切相关，提出了该区域SST暖异常增强局地的气旋，促进山东半岛偏北大风的产生，从而引起降温的可能机制。伴随偏北大风的极端低温日数占山东半岛冬季总极端低温日数的41%,对这些伴随偏北大风的极端低温日进行合成分析，发现极端低温发生时，山东半岛处于一个气旋-反气旋式环流异常的中间位置，导致山东上空北风盛行。黑潮延伸体区域的暖SST异常加强了从海洋向大气释放的热通量，驱动了上升运动，在其上空形成次级环流，有利于异常低压的生成和发展，促进了山东半岛两侧气旋对的发生，从而引起偏北大风，造成极端低温。

关键词(KeyWords)： 极端低温;黑潮延伸体;偏北大风;大气次级环流

Abstract:

Keywords:

基金项目(Foundation): 山东省自然科学基金重大基础研究项目（ZR2019ZD12）;; 国家自然科学基金项目（41975065）资助~~

作者(Author): 冀蕊,贾英来,吴一非,张杰

DOI: 10.16441/j.cnki.hdxb.20210259

参考文献(References)：

• [1] 杨晓霞，盛春岩，沈建国，等.山东沿海偏北大风的天气学模型和物理量特征[J].海洋预报，2014,31(3):45-55.Yang X,Sheng C,Shen J,et al.Synoptic model and physical quantity features of north gale wind over Shandong coast[J].Marine Forecasts,2014,31(3):45-55.
• [2] 尹尽勇，曹越男，赵伟.2010年4月27日莱州湾大风过程诊断分析[J].气象，2011,37(7):897-905.Yin Q,Cao Y,Zhao W.A diagnostic analysis of the gale process in Laizhou Gulf on April 27,2010 [J].Meteorological Monthly,2011,37(7):897-905.
• [3] 朱男男，刘彬贤.一次引发黄渤海大风的爆发性气旋过程诊断分析[J].气象与环境学报，2015,31(6):59-67.Zhu N,Liu B.Diagnostic analysis of outbreak cyclone process induced strong wind over Yellow and Bohai Seas[J].Journal of Meteorology and Environment,2015,31(6):59-67.
• [4] Kelly K,Small R,Samelson R,et al.Western boundary currents and frontal air-sea interaction:Gulf stream and Kuroshio extension[J].Journal of Climate,2010,23(21):5644-5667.
• [5] Hoskins B,Hodges K.New perspectives on the Northern Hemisphere winter storm tracks[J].Journal of the Atmospheric Sciences,2002,59(6):1041-1061.
• [6] Nakamura H,Sampe T,Goto A,et al.On the importance of midlatitude oceanic frontal zones for the mean state and dominant variability in the tropospheric circulation[J].Geophysical Research Letters,2008,35(15):1-5.
• [7] Minobe S,Miyashita M,Kuwano-Yoshida A,et al.Atmospheric response to the Gulf Stream:Seasonal variations[J].Journal of Climate,2010,23(13):3699-3719.
• [8] Lindzen R,Nigam S.On the role of sea surface temperature gradients in forcing low-level winds and convergence in the tropics[J].Journal of the Atmospheric Sciences,1987,44(17):2418-2436.
• [9] Hayes S,McPhaden P,Wallace J.The influence of sea-surface temperature on surface wind in the eastern equatorial pacific:weekly to monthly variability[J].Journal of Climate,1989,2(12):1500-1506.
• [10] Chelton D,Esbensen S,Schalax M,et al.Observations of coupling between surface wind stress and sea surface temperature in the eastern tropical pacific[J].Journal of Climate,2001,14(7):1479-1498.
• [11] Kobashi F,Xie S,Iwasaka N,et al.Deep atmospheric response to the North Pacific oceanic subtropical front in spring[J].Journal of Climate,2008,21(22):5960-5975.
• [12] Hirata H,Kawamura R,Kato M,et al.Response of rapidly developing extratropical cyclones to sea surface temperature variations over the western Kuroshio-Oyashio confluence region[J].Journal of Geophysical Research Atmospheres,2016,121(8):3843-3858.
• [13] O’Reilly C,Czaja A.The response of the pacific storm track and atmospheric circulation to Kuroshio extension variability[J].Quarterly Journal of the Royal Meteorological Society,2015,141(686),52-66.
• [14] Xu G,Chang P,Ma X,et al.Suppression of winter heavy precipitation in Southeastern China by the Kuroshio warm current[J].Climate Dynamics,2019,53(3-4):2437-2450.
• [15] Yanai M,Esbensen S,Chu J.Determination of bulk properties of tropical cloud clusters from large-scale heat and moisture budgets[J].Journal of the Atmospheric Sciences,1973,30(4):611-627.
• [16] Yanai M,Tomita T.Seasonal and interannual variability of atmospheric heat sources and moisture sinks as determined from NCEP-NCAR reanalysis[J].Journal of Climate,1998,11(3):463-482.
• [17] 潘晓华，翟盘茂.气温极端值的选取与分析[J].气象，2002,28(10):28-31.Pan X,Zhai P.Analysis of surface air temperature extremum[J].Meteorological Monthly,2002,28(10):28-31.
• [18] 朱乾根，林锦瑞，寿绍文，等.天气学原理和方法[M].北京：气象出版社，2007:10-23.Zhu Q,Lin J,Shou S,et al.Principles and Methods of Synoptic Science[M].Beijing:Meteorological Press,2007:10-23.
• [19] 李宪之.东亚寒潮侵袭的研究，中国近代科学论著选刊-气象学(1919—1949)[M].北京：科学出版社，1955:35-117.Li X.A Study of Cold Waves in East Asia,Offprints of Scientific Works in Modern China-Meteorology (1919-1949)[M].Beijing:Science Press,1955:35-117.
• [20] 王桂春，宋若宁.大连地区2009年12月29～30日寒潮天气过程分析[J].安徽农业科学，2010,38(18):9620-9622.Wang G,Song R.Analysis of the cold wave process in Dalian region from December 29th～ 30th of 2009 [J].Journal of Anhui Agricultural Sciences,2010,38(18):9620-9622.
• [21] 韩雪蕾，纪凡华，王小亚，等.2016年鲁西平原地区一次寒潮天气过程分析及对其农业的影响[J].农学学报，2017,7(10):90-95.Han X,Ji F,Wang X,et al.A cold wave weather process in West Shandong Plain in 2016:Diagnostic analysis and its impact on agriculture[J].Journal of Agricultural Sciences,2017,7(10):90-95.
• [22] 刘婉莉，李冬梅，张倩倩.2018年春季一次严重冻害过程分析[J].科技与创新，2020,1(20):21-24.Liu W,Li D,Zhang Q.Analysis of a severe freezing injury process in the spring of 2018 [J].Science and Technology & Innovation,2020,1(20):21-24.
• [23] 鲁坦，范学峰.2010年河南省晚霜冻天气成因分析[J].气象与环境科学，2012,35(1):43-48.Lu T,Fan X.Causes analysis of late frost of Henan province in 2010 [J].Meteorological and Environmental Sciences,2012,35(1):43-48.

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