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| 北大西洋涛动变率研究进展 | |
| 引用本文： | 龚道溢,周天军,王绍武.北大西洋涛动变率研究进展[J].地球科学进展,2001,16(3):413-420. |
| 作者姓名： | 龚道溢 周天军 王绍武 |
| 作者单位： | 1. 北京师范大学资源科学研究所, 2. 中国科学院大气物理研究所, 3. 北京大学地球物理系, |
| 基金项目： | 国家重点基础研究发展规划项目!“我国重大气候灾害的形成机理和预测理论研究”(编号 :G19980 40 90 0 )，国家自然科学基金! 重点项目 |
| 摘 要： | 介绍了近年来北大西洋涛动研究的最新进展。 NAO指数序列的建立取得了很多成果 ,包括一些观测气象记录的序列以及利用树木年轮、冰芯等代用资料建立的近 30 0多年的序列 ,这些长的序列显示 NAO不仅有突出的年际变率 ,也有显著的年代际变率。总结了 NAO对地面温度、降水、北大西洋飓风和北半球臭氧等影响的一些研究成果。NAO的低频变率可能与气候系统内部的相互作用以及外部强迫有关。许多模拟研究发现 NAO与温盐环流有密切的联系 ,但是这种关系还有待观测资料的证实。全球气候变暖也可能是影响 NAO变率的一个不可忽视的因素。 |
| 关 键 词： | 北大西洋涛动（NAO） 变率 NAO序列 |
| 文章编号： | 1001-8166(2001)03-0413-08 |
| 修稿时间： | 2000年9月18日 |
ADVANCE IN THE STUDIES ON NORTH ATLANTIC OSCILLATION(NAO) |
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| GONG Dao-yi,ZHOU Tian-jun,WANG Shao-wu.ADVANCE IN THE STUDIES ON NORTH ATLANTIC OSCILLATION(NAO)[J].Advance in Earth Sciences,2001,16(3):413-420. | |
| Authors: | GONG Dao-yi ZHOU Tian-jun WANG Shao-wu |
| Institution: | 1.Institute of Resources Science,Beijing Normal University,Beijing, 100875,China; 2.Institute of Atmospheric Physics,Chinese Academy of Sciences,Beijing100029,China; 3.Department of Geophysics,Peking University,Beijing100871,China |
| Abstract: | The recent advances in the studies on the North Atlantic oscillation(NAO) are reviewed. Some long time series of NAO index are established using both the instrumental and proxy data. The instrumental series is now extended back to AD1825. Proxy NAO indices reconstructed using tree ring data and/or ice core now attract more attention. Multiple proxy reconstruction is now widely accepted for the purpose to reduce the uncertainty regarding of the individual proxy. As long as about three centuries' proxy NAO indices provide good representation of variability in natural context. The impacts of NAO on the climate are now studied in more details and have been connected to Arctic oscillation (AO). NAO and AO are the two paradigms of one phenomenon. Some model studies confirm that the thermohaline circulation (THC) may plays very important role in the low frequency of NAO. Some other external forces such as ozone and greenhouse warming are also considered as potential contributor to the observed recent trends in NAO. |
| Keywords: | North Atlantic Oscillations NAO Variability |
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