| 山东半岛冬季冷流暴雪的气候特征及其成因征兆 |
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| 引用本文： | 周淑玲,李宏江,吴增茂,林曲凤. 山东半岛冬季冷流暴雪的气候特征及其成因征兆[J]. 自然灾害学报, 2011, 0(3) |
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| 作者姓名： | 周淑玲 李宏江 吴增茂 林曲凤 |
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| 作者单位： | 山东省威海市气象局;中国海洋大学海洋环境学院;山东省烟台市气象局; |
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| 基金项目： | 国家自然科学基金项目(40675068); “黄渤海高影响天气预报中的关键技术研究”(GYHY201106006)共同资助 |
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| 摘 要： | 利用山东半岛降雪资料、海温观测资料和NCEP/NCAR再分析资料,首先用EOF方法,在探讨了山东半岛41年(1965-2005年)冬季冷流降雪气候特征的基础上,重点分析了冷流暴雪的气候特征及时空分布。结果表明:山东半岛冬季冷流暴雪在文登附近有一个强正值中心,在招远附近有一个次强正值中心;降雪量在1980-1995年间呈5年左右的周期振荡,1996-2005年间呈2～3年周期振荡;山东半岛平均每年有0.9个冷流暴雪日。其次,分析了气温和海-气温差与冷流暴雪发生的关系。最后,根据山东半岛冬季冷流暴雪的3种不同的空间分布形态,建立了对应的3种冷流暴雪的500hPa环流模型。
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| 关 键 词： | 冷流暴雪 特征分析 山东半岛 环流模型 |
Climatic characteristics and causality of cold air-outbroken snowstorm events in Shandong Peninsula in winter |
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| ZHOU Shu-ling,LI Hong-jiang,WU Zeng-mao,LIN Qu-feng. Climatic characteristics and causality of cold air-outbroken snowstorm events in Shandong Peninsula in winter[J]. Journal of Natural Disasters, 2011, 0(3) |
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| Authors: | ZHOU Shu-ling LI Hong-jiang WU Zeng-mao LIN Qu-feng |
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| Affiliation: | ZHOU Shu-ling1,LI Hong-jiang1,WU Zeng-mao2,LIN Qu-feng3(1.Weihai Meteorological Office,Shandong Province,Weihai 264200,China,2.College Physical and Environmental Oceanography,Ocean University of China,Qingdao 266003,3.Yantai Meteorological Office,Yantai 264003,China) |
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| Abstract: | Using daily observation of surface snowfall in Shandong Peninsula and NCEP/NCAR daily data during the winter(between November and the next February) from 1965 to 2005,the climatic characteristics and spatiotemporal distribution of the cold air-outbroken snowstorm events in Shandong Peninsula was analysed based on the methods of EOF.The results show that the winter cold air-outbroken snowstorm events in Shandong Peninsula have a strong center near Wendeng and a weak center near Zhaoyuan.The snowfall exhibits... |
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| Keywords: | cold air flow and heavy snowstorm characteristic analysis Shandong Peninsula circulation model |
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