| 渤海冬季海冰气候变异的成因分析 |
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| 引用本文： | 刘钦政,黄嘉佑,白珊,吴辉碇.渤海冬季海冰气候变异的成因分析[J].海洋学报,2004,26(2):11-19. |
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| 作者姓名： | 刘钦政 黄嘉佑 白珊 吴辉碇 |
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| 作者单位： | 1.国家海洋环境预报研究中心, 北京, 100081 |
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| 基金项目： | 国家自然科学基金项目(49976007，40233032)，国家十五科技攻关项目(2001BA603B-03)，海洋灾害发生机理及与预报减灾技术研究(2001CB711006)，南大洋海冰变化及其对全球和中国气候影响的研究(2001DIA50040-03). |
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| 摘 要： | 选取渤海冰情等级资料和大气环流74个指数逐月资料,分别建立不同尺度(年、半年、季和月)的累积值变量作为因子,研究该地区冰情年代际变化及冰情的气候成因,结果发现以1972年为分界把1932～2000年时期冰情的变化分为两个时段,前一时段为重冰情多发阶段,1972年以后转为轻冰情时段.影响渤海海冰冰情变化主要因子是太平洋副高.
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| 关 键 词： | 海冰年代际变化 大气环流因子 信噪比分析 突变分析 |
| 文章编号： | 0253-4193(2004)02-0011-09 |
| 收稿时间： | 2003/2/28 0:00:00 |
| 修稿时间： | 6/4/2003 12:00:00 AM |
Studies on the causation of sea ice decadal variation in the Bohai Sea of China |
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| LIU Qin-zheng,HUANG Jia-you,BAI Shan and WU Hui-ding.Studies on the causation of sea ice decadal variation in the Bohai Sea of China[J].Acta Oceanologica Sinica (in Chinese),2004,26(2):11-19. |
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| Authors: | LIU Qin-zheng HUANG Jia-you BAI Shan and WU Hui-ding |
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| Institution: | 1.National Marine Environmental Forecasting Center, Beijing 100081, China2.Department of Atmospheric Sciences, Peking University, Beijing 100871, China |
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| Abstract: | Based on the data of sea ice grade in the Bohai Sea of China and the 74 factors of atmospheric circulation, the variation of sea ice conditions in decadal scale is studied by using the factors of atmospheric circulation in different time scale (year, half-year, season and month).The result shows that two period of sea ice conditions: the severe period (1932~1972) and the mild period (1973~2000) may be divided into by 1972 from 1932 to 2000 in the decadal variation, the most significant factor of atmospheric circulation influencing the sea ice conditions in the Bohai Sea is the subtropical high in the Pacific. |
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| Keywords: | decadal variation of sea ice factors of atmospheric circulation signal-noise ratio analysis jump analysis in decadal variation |
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