| 南沙与暖池海域SST的长期振荡及其耦合过程 |
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| 引用本文： | 谢强,鄢利农,侯一筠,胡基福.南沙与暖池海域SST的长期振荡及其耦合过程[J].海洋与湖沼,1999,30(1):88-96. |
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| 作者姓名： | 谢强 鄢利农 侯一筠 胡基福 |
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| 作者单位： | [1]中国科学院海洋研究所 [2]青岛海洋大学气象系 |
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| 基金项目： | 中国科学院重点资助!KZ952－S1－429 |
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| 摘 要： | 利用多项式函数分析了南沙和暖池海温的长期变化，发现两海域的海面温度（ＳＳＴ）１９３４－１９８９年５６年来有明显地增温趋势，并且存在着ＳＳＴ变化的周期的突变现象，根据交叉谱分析特征，两海区ＳＳＴ之间存在不同频率的耦合振荡，可分为两种主要类型，周期约为１６．６年的同相低频耦合振荡和周期约为２年的反应相耦合振荡。
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| 关 键 词： | 海面温度 低频振荡 耦合过程 暖池 南沙群岛 |
| 收稿时间： | 7/9/1997 12:00:00 AM |
| 修稿时间： | 6/1/1998 12:00:00 AM |
LONG-PERIOD VARIATIONS AND COUPLING OSCILLATIONS OF SST OVER THE NANSHA AND WARMPOOL |
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| XIE Qiang,YAN Li-nong,HOU Yi-jun and HU Ji-fu.LONG-PERIOD VARIATIONS AND COUPLING OSCILLATIONS OF SST OVER THE NANSHA AND WARMPOOL[J].Oceanologia Et Limnologia Sinica,1999,30(1):88-96. |
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| Authors: | XIE Qiang YAN Li-nong HOU Yi-jun and HU Ji-fu |
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| Institution: | Institute of Oceanology,the Chinese Academy of Sciences,Qingdao,266071;First Institute of Oceanography,State Oceanic Administration,Qingdao,266003;Institute of Oceanology,the Chinese Academy of Sciences,Qingdao,266071;Department of Meterology,Ocean University of Qingdao,Qingdao,266003 |
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| Abstract: | In order to improve relationship between Nansha SST and the climate of China, theLong-period Variations of surface temperature of the Nansha region and Warmpool are studied byusing the Polynomial function and spectrum analysis based on the monthly mean SST data during1934-1989. The results obtained are listed below.1) The SST changes of Nanstia and Warmpool over the past 56 years are in concordance withthe warming trend of the global temperature, and have obvious changes on decadal time scales. Suchchanges are not completely the same for the two sea areas; some lag exists.2) Rapid SST changes happened in both sea areas. The changes over Nansha were in aboutl956, which fundamental1y coincided with the period of the rapid air temperatare changes in easternChna; the rapid SST changes had some links with the atlnosphere cireulation. The change over theWarmpool took place in about 1960 (i. e. about 4 years' lag), because the correlation betweenNansha and WarmPoo1 reached a maximum in 4-year lag. ms is worth studying in the fubo.3) According to their cross spectr-um characters, there are coupling oscillation in differentfrequencies; these oscillations may be divided into two main patterns: (1) in phase, low-frequency(period about l6.6 years) coupling oscillation and (2) out of phase, midfrequency (period about 2years) coupling oscillations. |
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| Keywords: | Sea surface temperature Low-frequency oscillation Coupling process Nansha and warmpool |
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