Institutional Repository of Key Laboratory of Ocean Circulation and Wave Studies, Institute of Oceanology, Chinese Academy of Sciences
Rectification of El Nino-Southern Oscillation into Climate Anomalies of Decadal and Longer Time Scales: Results from Forced Ocean GCM Experiments | |
Sun, De-Zheng1,2; Zhang, Tao1,2; Sun, Yan1,2,3; Yu, Yongqiang4; Sun, DZ (reprint author), NOAA, ESRL, PSD, 325 Broadway,Mail Code R PSD1, Boulder, CO 80305 USA. | |
2014-04-01 | |
发表期刊 | JOURNAL OF CLIMATE |
卷号 | 27期号:7页码:2545-2561 |
文章类型 | Article |
摘要 | To better understand the causes of climate change in the tropical Pacific on the decadal and longer time scales, the rectification effect of ENSO events is delineated by contrasting the time-mean state of two forced ocean GCM experiments. In one of them, the long-term mean surface wind stress of 1950-2011 is applied, while in the other, the surface wind stress used is the long-term mean surface wind stress of 1950-2011 plus the interannual monthly anomalies over the period. Thus, the long-term means of the surface wind stress in the two runs are identical. The two experiments also use the same relaxation boundary conditions, that is, the SST is restored to the same prescribed values. The two runs, however, are found to yield significantly different mean climate for the tropical Pacific. The mean state of the run with interannual fluctuations in the surface winds is found to have a cooler warm pool, warmer thermocline water, and warmer eastern surface Pacific than the run without interannual fluctuations in the surface winds. The warming of the eastern Pacific has a pattern that resembles the observed decadal warming. In particular, the pattern features an off-equator maximum as the observed decadal warming. The spatial pattern of the time-mean upper-ocean temperature differences between the two experiments is shown to resemble that of the differences in the nonlinear dynamic heating, underscoring the role of the nonlinear ocean dynamics in the rectification. The study strengthens the suggestion that rectification of ENSO can be a viable mechanism for climate change of decadal and longer time scales. |
关键词 | El Nino |
学科领域 | Meteorology & Atmospheric Sciences |
DOI | 10.1175/JCLI-D-13-00390.1 |
收录类别 | SCI |
语种 | 英语 |
WOS记录号 | WOS:000333382100005 |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://ir.qdio.ac.cn/handle/337002/23958 |
专题 | 海洋环流与波动重点实验室 海洋生态与环境科学重点实验室 |
通讯作者 | Sun, DZ (reprint author), NOAA, ESRL, PSD, 325 Broadway,Mail Code R PSD1, Boulder, CO 80305 USA. |
作者单位 | 1.Univ Colorado, Cooperat Inst Res Environm Sci, Boulder, CO 80309 USA 2.NOAA, ESRL, PSD, Boulder, CO 80305 USA 3.Chinese Acad Sci, Inst Oceanol, Key Lab Ocean Circulat & Waves, Qingdao, Peoples R China 4.Chinese Acad Sci, Inst Atmospher Phys, LASG, Beijing, Peoples R China |
推荐引用方式 GB/T 7714 | Sun, De-Zheng,Zhang, Tao,Sun, Yan,et al. Rectification of El Nino-Southern Oscillation into Climate Anomalies of Decadal and Longer Time Scales: Results from Forced Ocean GCM Experiments[J]. JOURNAL OF CLIMATE,2014,27(7):2545-2561. |
APA | Sun, De-Zheng,Zhang, Tao,Sun, Yan,Yu, Yongqiang,&Sun, DZ .(2014).Rectification of El Nino-Southern Oscillation into Climate Anomalies of Decadal and Longer Time Scales: Results from Forced Ocean GCM Experiments.JOURNAL OF CLIMATE,27(7),2545-2561. |
MLA | Sun, De-Zheng,et al."Rectification of El Nino-Southern Oscillation into Climate Anomalies of Decadal and Longer Time Scales: Results from Forced Ocean GCM Experiments".JOURNAL OF CLIMATE 27.7(2014):2545-2561. |
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