| 海气相互作用与年代际气候振荡可能机制初探 |
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| 引用本文： | 张延宾,陆维松,邵海燕.海气相互作用与年代际气候振荡可能机制初探[J].南京气象学院学报,2006,29(1):9-14. |
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| 作者姓名： | 张延宾 陆维松 邵海燕 |
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| 作者单位： | 南京信息工程大学,大气科学系,江苏,南京,210044 |
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| 摘 要： | 从简单海气相互作用方程组出发，引进新的海洋对大气加热函数，得到简单海气相互作用方程组的解析解。解析解表明，海气相互作用可以产生不稳定耦合波，这种波的不稳定程度随海气相互作用系数和深海对海洋混合层的影响而不同，并且e-折时间尺度随海气相互作用系数出现极小值，这个极小值点对应的周期是最不稳定海气耦合波的周期；海气相互作用产生的最不稳定海气耦合波的周期在中纬度地区是18a，在低纬度是3．5a，在高纬度是35a，它可能是海气系统年代际振荡的机制之一。
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| 关 键 词： | 海气 年代际振荡 不稳定 海气耦合波 |
| 文章编号： | 1000-2022（2006）01-0009-06 |
| 收稿时间： | 09 1 2004 12:00AM |
| 修稿时间： | 2004-09-012005-02-25 |
Interaction of Air-Sea in the Middle Latitudes and Decadal Climatic Oscillations |
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| ZHANG Yan-bin,LU Wei-song,SHAO Hai-yan.Interaction of Air-Sea in the Middle Latitudes and Decadal Climatic Oscillations[J].Journal of Nanjing Institute of Meteorology,2006,29(1):9-14. |
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| Authors: | ZHANG Yan-bin LU Wei-song SHAO Hai-yan |
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| Institution: | Department of Atmospheric Sciences,NUIST,Nanjing 210044,China |
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| Abstract: | From a group of simple air-sea coupled equations,introducing a new heating function of oceans to the air,we get an analytical solution of the air-sea coupled equations. The analytical solution shows that the air-sea coupled interaction is able to excite unstable coupled waves, and the unstable degree of the waves varies with the change of the coefficient of air-sea coupled interaction and the effect of the deep-sea on the mixed layer. The e-folding time exists the minimum point with the change of the coefficient of airsea coupled interaction, and the minimum point corresponds to the period of the most unstable coupled wave. The air-sea coupled interaction can excite the most unstable coupled wave with the period of 18-year in the middle latitudes,and it is 3.5-year in the low latitudes and 35-year in the high latitudes. This might be one of the possible mechanisms to drive the quasi-decadal oscillation of the air-sea system. |
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| Keywords: | air-sea decadal oscillation unstable coupled waves |
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