全球百年海表面温度年际和年代际变化特征分析

张锦婷; 刘秦玉; 武术

全球百年海表面温度年际和年代际变化特征分析

中国海洋大学物理海洋实验室,海洋-大气相互作用与气候实验室,山东青岛 266100

基金项目: 国家自然科学基金(40676010; 40830106)。

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出版历程
- 收稿日期: 2009-05-09

The analysis of interannual and interdecadal characteristics of global sea surface temperature during 1902—2003

Physical Oceanography Laboratory & Ocean-Atmospheric Interaction and Climate Laboratory, Ocean University of China, Qingdao 266003,China

摘要

摘要: 利用100 a (1903—2002年)HadiSST的逐月资料, 将全球海表面温度异常(SSTA)作为整体进行经验正交函数分解(EOF分解),提取了控制各大洋SSTA的主导模态和各大洋之间的联合模态,分析了相应的空间分布和时间序列。研究结果表明:SSTA变化最剧烈的海区是赤道中东太平洋、西北大西洋湾流海区和北太平洋黑潮延伸体海区。热带太平洋厄尔尼诺和南方涛动是主导模态并具有2~7 a 周期的年际变化;SSTA变化第二主模态和第三主模态都是以大约70 a为周期的年代际变化为主的跨大洋联合模态。第二主模态的空间分布主要表现为中纬度北太平洋和北大西洋反位相、热带太平洋与大西洋反位相的太平洋－大西洋双偶极子型分布。SSTA变化的第三模态主要呈现南北半球海洋反位相的特征,为北太平洋-北大西洋-南大洋联合模态。第四模态基本上是反映各个不同海域特有的局地海洋-大气相互作用模态,该模态的时间序列具有1~4 a周期的年际变化和约9 a周期的年代际变化。
- 海表面温度 /
- 经验正交函数 /
- 主模态 /
- 年际、年代际变化
Abstract: Based on the monthly HadiSST SSTA(sea surface temperature anomaly) in recent 100 years (from 1903 to 2002), the spatial and temporal variation characteristics of global SSTA are analyzed by using the method of Empirical Orthogonal Function (EOF),the first main mode of global SSTA and other joint modes between different oceans are respectively obtained. It is shown that the maximum changes of SSTA appear in equatorial eastern Pacific, Gulf Stream zone in northwestern Atlantic and Kuroshio extension zone in north Pacific; ENSO in tropical Pacific is the first main mode with periods of 2~7 years; the second main mode and third main mode are joint modes between different oceans with an interdecadal period of about 70 years. The second mode is a Pacific-Atlantic double dipole mode with one out-of-phase dipole in north Pacific and north Atlantic, the other in tropical Pacific and tropical Atlantic. The third mode is a North Pacific-North Atlantic-Southern Ocean mode with out-of-phase between northern and southern hemispheres. The forth mode reflects local ocean-atmosphere interaction patterns in different zones and the time series in this mode presents interannual periods of 1~4 years and an interdecadal period of about 9 years .
- SST /
- Empirical Orthogonal Function analysis /
- main mode /
- interannual and interdecadal characteristics

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参考文献(22)

吴爱明, 胡敦欣, 白学志. 太平洋表层海温的年代际变化[J]. 海洋科学集刊, 第43集, 2001: 1—5.

余贞寿,孙照渤. 热带太平洋SST的多尺度时空特征分析[J]. 南京气象学院学报, 2004,27(2): 193—199.

周天军, 宇如聪, 李薇, 等. 20世纪印度洋气候变率特征[J]. 气象学报, 2001, 59(3): 257—271.

晏红明, 肖子牛, 谢应齐. 近50年热带印度洋海温距平场的时空特征分析[J]. 气候与环境研究, 2000, 5(2): 180—188.

谭言科, 张人禾, 何金海, 等. 热带印度洋海温的年际变化与ENSO[J]. 气象学报, 2004, 62(6): 831—840.

XIE S P, CARTON J A. Tropical Atlantic variability: patterns, mechanisms, and impacts // Earth Climate: The Ocean-Atmosphere Interaction, Geophysical Monograph, 2004, 147: 121-142.

RUIZ-BARRADAS Alfredo, CARTON J A., NIGAM Sumant. Structure of interannual-to-decadal climate variability in the Tropical Atlantic sector[J]. J Climate, 2000, 13(18): 3285—3297.

赵珊珊, 杨修群, 朱益民. 热带大西洋年际和年代际变率的时空结构模拟[J]. 海洋学报, 2003, 25(3): 9—19.

徐建军, 王东晓. 印度洋和太平洋海温的年际、年代际异常及其对亚洲季风的影响[J]. 海洋学报, 2000, 22(3): 34—43.

武术, 刘秦玉, 胡瑞金. 热带太平洋-南海-印度洋海面风与海面温度年际变化整体耦合的主模态[J]. 中国海洋大学学报, 2005, 35(4): 521—526.

王晓悦, 钱永甫. 近50a 全球和三大洋海温距平的时空变化特征[J]. 南京气象学院学报, 2002, 25(6): 755—763.

胡基福. 气象统计原理与方法[M]. 青岛:青岛海洋大学出版社, 1996: 141-160,235—245.

TORRENCE C, COMPO G P. A practical guide to wavelet analysis[J]. Bulletin of the American Meteorological Society, 1998, 79(1): 61—78.

AN S L, WANG B. The forced and intrinsic low-frequency modes in the North Pacific[J]. J Climate, 2005, 18(6):876-885.

SAJI N H, GOSWAMI B N, VINAYACHANDRAN P N, et al. A dipole mode in the tropical Indian Ocean[J]. Nature, 1999, 401(6751): 360—363.

YANG J, LIU Q, XIE S P, et al. Impact of the Indian Ocean SST basin mode on the Asian summer monsoon[J]. Geophys Res Lett, 2007, 34, L02708, doi: 10.1029/2006GL02857.

CHIANG J C, SOBEL Adam H. Tropical tropospheric temperature variations caused by ENSO and their influence on the remote tropical climate[J]. J Climate, 2002, 15(18): 2616—631.

LIU Qin-yu, JIANG Xia, XIE Shang-ping, et al. A gap in the Indo-Pacific warm pool over the South China Sea in boreal winter: Seasonal development and interannual variability[J]. Journal of Geophysical Research, 2004, 109, C07012, doi: 10.1029/2003JC002179.

XIE Shang-ping, TANIMOTO Y. A pan-Atlantic decadal climate oscillation[J]. Geophys Res Lett, 1998, 25(12): 2185-2188.

WU L, HE F, LIU Z, et al. Atmospheric teleconnections of tropical Atlantic variability: interhemispheric, tropical-extratropical, and cross-basin Interactions[J]. J Climate, 2007, 20(5): 856-870.

LIU Qin-yu, WEN Na, LIU Z. An observational study of the impact of the North Pacific SST on the atmosphere[J]. Geophys Res Lett,2006, 33, L18611.

CHIANG J C, VIMONT D J. Analogous Pacific and Atlantic meridional modes of tropical atmosphere ocean variability[J]. J Climate, 2004, 17(21): 4143-4158.

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