极地研究

极地研究 ›› 2015, Vol. 27 ›› Issue (4): 337-343.DOI: 10.13679/j.jdyj.2015.4.337

• 研究论文 •    下一篇

极锋以南洋区N2O源汇特性初析

詹力扬1 陈立奇1 张介霞1,2 李玉红1 吴曼2 许苏清1   

  1. 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
  • 收稿日期:2014-07-21 修回日期:2015-03-05 出版日期:2015-12-30 发布日期:2015-12-30
  • 通讯作者: 李玉红
  • 基金资助:

    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

SINK AND SOURCE CHARACTERISTICS OF SURFACE WATER SOUTH OF THE POLAR FRONT IN THE SOUTHERN OCEAN

Zhan Liyang1, Chen Liqi1, ZHANG Jiexia1,2, Li Yuhong1, Wu Man2, Xu Suqing1   

  1. 1Key Laboratory of Global Change and Marine-Atmospheric Chemistry of State Oceanographic Administration (SOA), Third Institute of Oceanography, SOA, Xiamen 361005, China; 2College of Ocean and Earth Science, Xiamen University, Xiamen 361005, China
  • Received:2014-07-21 Revised:2015-03-05 Online:2015-12-30 Published:2015-12-30

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摘要： N2O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N2O循环及海洋对N2O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，分析结果显示，南大洋表层海水存在亚热带锋附近N2O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。文中主要对极锋以南的海区不饱和现象进行了讨论。此外，本研究也对海气通量的评估方法进行了一定的更新，根据该方法对极锋以南洋区进行了海气通量的评估，结果显示，极锋区以南表层海水是大气N2O的汇区。

关键词: 南大洋, 氧化亚氮, 源汇, 海气通量

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 global N2O budget. Durint the 25th and 26th Chinese Antarctic Research Expedition, surface N2O sample were taken and analyzed. Result shows that N2O 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 atmospheric N2O.

Key words: Southern Ocean, nitrous oxide, sink and source, air-sea flux