| 极锋以南洋区N_2O源汇特性初析 |
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| 引用本文： | 詹力扬,陈立奇,张介霞,李玉红,吴曼,许苏清.极锋以南洋区N_2O源汇特性初析[J].极地研究,2015,27(4):337-343. |
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| 作者姓名： | 詹力扬 陈立奇 张介霞 李玉红 吴曼 许苏清 |
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| 作者单位： | 1.国家海洋局第三海洋研究所，海洋大气化学与全球变化重点实验室，福建 厦门 361005； ;2.厦门大学海洋与地球学院，福建 厦门 361005 |
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| 基金项目： | 国家海洋局第三那海洋研究所科研业务费;南大洋N2O 源汇格局：驱动机制及其对海洋N2O 收支的影响;夏季南极普里兹湾 N2O 陆缘水边界锋面混合过程研究 |
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| 摘 要： | N_2O是大气中最重要的温室气体之一,目前已经有大量的研究对海洋N_2O循环及海洋对N_2O收支的贡献进行追踪报道。然而,极区相关研究仍然十分有限。本研究利用中国第25、26次南极科学考察的机会,对南大洋进行的采样以及实验室分析,结果显示,南大洋表层海水存在亚热带锋附近N_2O过饱和,亚南极锋附近接近饱和,和极锋以南洋面的不饱和的特征。海冰融化后,其融冰水的注入是N2O不饱和特征形成的主要原因。运用正态分布选取站观测风速95%以上的风速范围进行平局估算出极锋以南洋区海气通量,结果显示,极锋区以南表层海水是大气N_2O的汇区,年吸收通量约为3.5×10~(-4)—7.7×10-4Tg·a-1(百万吨氮/年)。
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| 关 键 词： | 南大洋 氧化亚氮 源汇 海气通量 |
| 收稿时间： | 2014-07-21 |
SINK AND SOURCE CHARACTERISTICS OF SURFACE WATER SOUTH OF THE POLAR FRONT IN THE SOUTHERN OCEAN |
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| Zhan Liyang,Chen Liqi,ZHANG Jiexia,Li Yuhong,Wu Man,Xu Suqing.SINK AND SOURCE CHARACTERISTICS OF SURFACE WATER SOUTH OF THE POLAR FRONT IN THE SOUTHERN OCEAN[J].Chinese Journal of Polar Research,2015,27(4):337-343. |
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| Authors: | Zhan Liyang Chen Liqi ZHANG Jiexia Li Yuhong Wu Man Xu Suqing |
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| Institution: | 1.Key Laboratory of Global Change and Marine-Atmospheric Chemistry of State Oceanographic Administration (SOA), Third Institute of Oceanography, SOA, Xiamen 361005, China;2.College of Ocean and Earth Science, Xiamen University, Xiamen 361005, China |
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| Abstract: | N2O is one of the most important green house gases, which has been concerned for the past 5 decades. However, very limit studies reports the role polar oceans play in globalN2O budget. Durint the 25th and 26th Chinese Antarctic Research Expedition, surfaceN2O sample were taken and analyzed. Result shows thatN2O is oversaturated near the Subtropical Front, close to equilibrium near SubAntarctic Front and undersaturated south of the Polar Front (PF). The air-sea flux south of polar front is evaluated, result shows that region south of PF is sink of atmosphericN2O. |
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| Keywords: | Southern Ocean nitrous oxide sink and source air-sea flux |
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