| 北极海冰变率的独特模式及其与大气强迫的关系 |
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| 引用本文： | 梁钰,毕海波,王云鹤,张泽华,黄海军.北极海冰变率的独特模式及其与大气强迫的关系[J].海洋学报(英文版),2020,39(9):60-72. |
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| 作者姓名： | 梁钰 毕海波 王云鹤 张泽华 黄海军 |
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| 作者单位： | 中国科学院海洋研究所, 海洋地质与环境重点实验室, 青岛, 266071;青岛海洋科学与技术国家实验室, 海洋地质过程与环境功能实验室, 青岛 266237;中国科学院海洋研究所, 大科学研究中心, 青岛, 266071;中国科学院大学, 北京, 100049 |
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| 基金项目： | The National Natural Science Foundation of China under contract Nos 41406215 and 41706194; a fund provided by the Qingdao National Laboratory for Marine Science and Technology; the National Natural Science Foundation of China (NSFC)-Shandong Joint Fund for Marine Science Research Centers under contract No. U1606401. |
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| 摘 要： | The spatial structure of the Arctic sea ice concentration(SIC) variability and the connection to atmospheric as well as radiative forcing during winter and summer for the 1979–2017 period are investigated. The interannual variability with different spatial characteristics of SIC in summer and winter is extracted using the empirical orthogonal function(EOF) analysis. The present study confirms that the atmospheric circulation has a strong influence on the SIC through both dynamic and thermodynamic processes, as the heat flux anomalies in summer are radiatively forced while those in winter contain both radiative and "circulation-induced" components. Thus,atmospheric fluctuations have an explicit and extensive influence to the SIC through complex mechanisms during both seasons. Moreover, analysis of a variety of atmospheric variables indicates that the primary mechanism about specific regional SIC patterns in Arctic marginal seas are different with special characteristics.
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| 关 键 词： | 海冰密集度 大气环流 表面辐射通量 |
| 收稿时间： | 2019/6/28 0:00:00 |
Role of atmospheric factors in forcing Arctic sea ice variability |
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| Liang Yu,Bi Haibo,Wang Yunhe,Zhang Zehu,Huang Haijun.Role of atmospheric factors in forcing Arctic sea ice variability[J].Acta Oceanologica Sinica,2020,39(9):60-72. |
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| Authors: | Liang Yu Bi Haibo Wang Yunhe Zhang Zehu Huang Haijun |
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| Institution: | 1.Key Laboratory of Marine Geology and Environment, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China2.Laboratory for Marine Geology, Pilot National Laboratory for Marine Science and Technology (Qingdao), Qingdao 266237, China3.Center for Ocean Mega-Science, Chinese Academy of Sciences, Qingdao 266071, China4.University of Chinese Academy of Sciences, Beijing 100049, China |
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| Abstract: | The spatial structure of the Arctic sea ice concentration (SIC) variability and the connection to atmospheric as well as radiative forcing during winter and summer for the 1979–2017 period are investigated. The interannual variability with different spatial characteristics of SIC in summer and winter is extracted using the empirical orthogonal function (EOF) analysis. The present study confirms that the atmospheric circulation has a strong influence on the SIC through both dynamic and thermodynamic processes, as the heat flux anomalies in summer are radiatively forced while those in winter contain both radiative and “circulation-induced” components. Thus, atmospheric fluctuations have an explicit and extensive influence to the SIC through complex mechanisms during both seasons. Moreover, analysis of a variety of atmospheric variables indicates that the primary mechanism about specific regional SIC patterns in Arctic marginal seas are different with special characteristics. |
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| Keywords: | sea ice concentration atmospheric circulation surface radiation |
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