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热带海洋学报 >

2015 , Vol. 34 >Issue 3: 30 - 35

DOI: https://doi.org/10.11978/j.issn.1009-5470.2015.03.004

海洋气象学

热带不稳定波的年际变化及其与ENSO的关系

  • 靳晓琳 ,
  • 李忠贤 ,
  • 郑志海 ,
  • 王大钧
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  • 1. 清华大学地球系统科学研究中心, 地球系统数值模拟教育部重点实验室, 北京 100084; 2. 南京信息工程大学, 气象灾害预报预警与评估协同创新中心, 江苏 南京 210044; 3. 国家气候中心, 中国气象局气候研究开放实验室, 北京 10081; 4. 沈阳区域气候中心, 辽宁 沈阳 110166
靳晓琳(1992~)女, 山西省运城市人, 研究生, 研究方向为海气相互作用。E-mail: jinxlin@163.com

收稿日期: 2014-06-16

  修回日期: 2014-12-05

  网络出版日期: 2015-06-08

基金资助

国家自然科学基金项目(41475096); 国家重点基础研究发展计划（2013CB430204）; 公益性行业(气象)科研专项(GYHY201306021)

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Interannual variability of the TIWs and its relationship with the ENSO

  • JIN Xiao-lin ,
  • LI Zhong-xian ,
  • ZHENG Zhi-hai ,
  • WANG Da-jun
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  • 1. Center for Earth System Science, Ministry of Education Key Laboratory for Earth System Modeling, Tsinghua University, Beijing 100084, China; 2. Collaborative Innovation Center on Forecast and Evaluation of Meteorological Disasters, Nanjing University of Information Science and Technology, Nanjing 210044, China; 3. Laboratory for Climate Studies, National Climate Center, China Meteorological Administration, Beijing 100081, China; 4. Regional Climate Center of Shenyang, Shenyang 110166, China

Received date: 2014-06-16

  Revised date: 2014-12-05

  Online published: 2015-06-08

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摘要

使用最优插值的1/4°逐日海温再分析资料(NOAA OISST V2.0)逐日海温资料研究了热带不稳定波(TIWs)的年际变化特征及其与厄尔尼诺与南方涛动(ENSO)的关系。结果表明: TIWs一般在每年的5~7月开始出现, 在11~12月末或次年1月末消亡。TIWs和ENSO存在负相关关系, 即在ENSO暖位相年(厄尔尼诺年), TIWs强度减弱; 在ENSO的冷位相年(拉尼娜年), TIWs强度增强。进一步分析表明, 在TIWs活跃的6~12月, 其与ENSO存在很好的负相关, 且相关性在12月最好。对TIWs和尼诺3.4区指数(NINO 3.4) 海表面温度距平(SSTA)进行超前滞后相关分析, 发现在TIWs超前ENSO 2~3个月时两者的相关性最显著, 这意味着TIWs可能对ENSO循环具有调控作用。

关键词： 热带不稳定波; 年际变化; 厄尔尼诺与南方涛动

本文引用格式

靳晓琳 , 李忠贤 , 郑志海 , 王大钧 . 热带不稳定波的年际变化及其与ENSO的关系[J]. 热带海洋学报, 2015 , 34(3) : 30 -35 . DOI: 10.11978/j.issn.1009-5470.2015.03.004

Abstract

Using NOAA OISST V2.0 reanalysis data, we studied the interannual variability of tropical instability waves (TIWs). Results show that: TIWs usually appear during May and July and are absent in December or next January. A negative relationship is identified between the year-to-year variations of TIWs activity and that of ENSO intensity, with stronger TIWs activity in La Nina years and weaker TIWs activity in El Niño years. The negative relationship is more evident in the active period of TIWs during June and December, and the biggest correlation coefficient is in December. Applying lead/lag correlation analysis on TIWs index and NINO 3.4 SSTA, the results suggest that the maximum correlation coefficient appears when TIWs index leads the ENSO index by 2~3 months, which indicate that the TIWs may modulate the cycle of the ENSO.

Key words： TIWs; interannual variability; ENSO

参考文献

1 AN S I, JIN F F. 2004. Nonlinearity and asymmetry of ENSO[J]. Journal of Climate, 17(12): 2399-2412.
2 CHELTON D B, ESBENSEN S K, SCHLAX M G, et al. 2001. Observations of coupling between surface wind stress and sea surface temperature in the eastern tropical Pacific[J]. Journal of Climate, 14(7): 1479-1498.
3 CHELTON D B, SCHLAX M G, FREILICH M H, et al. 2004. Satellite measurements reveal persistent small-scale features in ocean winds[J]. Science, 303(5660): 978-983.
4 CONTRERAS R F. 2002. Long-term observations of tropical instability waves[J]. Journal of Physical Oceanography, 32(9): 2715-2722.
5 COX M D. 1980. Generation and propagation of 30-day waves in a numerical model of the Pacific[J]. Journal of Physical Oceanography, 10(8): 1168-1186.
6 DESER C, WAHL S, BATES J J. 1993. The influence of sea surface temperature gradients on stratiform cloudiness along the equatorial front in the Pacific Ocean[J]. Journal of Climate, 6(6): 1172-1180.
7 HAYES S P, MCPHADEN M J, WALLACE J M. 1989. The influence of sea-surface temperature on surface wind in the eastern equatorial Pacific: Weekly to monthly variability[J]. Journal of Climate, 2(12): 1500-1506.
8 HALPERN D, KNOX R A, LUTHER D S. 1988. Observations of 20-day period meridional current oscillations in the upper ocean along the Pacific equator[J]. Journal of Physical Oceanography, 18(11): 1514-1534.
9 KRAVTSOV S, KONDRASHOV D, KAMENKOVICH I, et al. 2011. An empirical stochastic model of sea-surface temperatures and surface winds over the Southern Ocean[J]. Ocean Science, 7(6): 755-770.
10 LEE T, LAGERLOEF G, GIERACH M M, et al. 2012. Aquarius reveals salinity structure of tropical instability waves[J]. Geophysical Research Letters, 39(12): L12610.
11 LEGECKIS R. 1977. Long waves in the eastern equatorial Pacific Ocean: A view from a geostationary satellite[J]. Science, 197 (4309): 1179-1181.
12 LIU W T, XIE XIAOSU, POLITO P S, et al. 2000. Atmospheric manifestation of tropical instability wave observed by QuikSCAT and tropical rain measuring mission[J]. Geophysical Research Letters, 27(16): 2545-2548.
13 MENKES C E R, VIALARD J G, KENNAN S C, et al. 2006. A modeling study of the impact of tropical instability waves on the heat budget of the eastern equatorial Pacific[J]. Journal of Physical Oceanography, 36(5): 847-865.
14 PHILANDER S G H. 1978. Instabilities of zonal equatorial currents, 2[J]. Journal of Geophysical Research, 83(C7): 3679-3682.
15 QIAO LI, WEISBERG R H. 1995. Tropical instability wave kinematics: Observations from the tropical instability wave experiment[J]. Journal of Geophysical Research: Oceans (1978-2012), 100(C5): 8677-8693.
16 SWENSON M S, HANSEN D V. 1999. Tropical Pacific Ocean mixed layer heat budget: The Pacific cold tongue[J]. Journal of Physical Oceanography, 29(1): 69-81.
17 WALLACE J M, MITCHELL T P, DESER C. 1989. The influence of sea-surface temperature on surface wind in the eastern equatorial Pacific: Seasonal and interannual variability[J]. Journal of Climate, 2(12): 1492-1499.
18 WENTZ F J, GENTEMANN C, SMITH D, et al. 2000. Satellite measurements of sea surface temperature through clouds[J]. Science, 288(5467): 847-850.
19 XIE SHANGPING. 2004. Satellite observations of cool ocean- atmosphere interaction[J]. Bulletin of the American Meteorological Society, 85(2): 195-208.
20 YU JINYI, LIU W T. 2003. A linear relationship between ENSO intensity and tropical instability wave activity in the eastern Pacific Ocean[J]. Geophysical Research Letters, 30(14): 1735.
21 YU ZUOJUN, JULIAN P, McCreary J R, et al. 1995. Meridional asymmetry and energetics of tropical instability waves[J]. Journal of Physical Oceanography, 25(12): 2997-3007.
22 ZHANG RONGHUA, BUSALACCHI A J. 2009. An empirical model for surface wind stress response to SST forcing induced by tropical instability waves (TIWs) in the eastern equatorial Pacific[J]. Monthly Weather Review, 137(6): 2021-2046.
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