AMS  >> Vol. 1 No. 2 (December 2014)

    Analysis on Multi-Scale Features of Sea Surface Salinity in Tropical Pacific Based on EEMD Method

  • 全文下载: PDF(1423KB) HTML    PP.55-62   DOI: 10.12677/AMS.2014.12009  
  • 下载量: 1,858  浏览量: 6,945  


黎 鑫,卢 扬:解放军理工大学气象海洋学院,南京;
陈 建:解放军总参大气环境研究所,北京;

集合经验模态分解热带太平洋海表盐度尺度分析Ensemble Empirical Mode Decomposition Tropical Pacific Sea Surface Salinity Scale Analysis



The multi-scale features in west warm pool (WP), southern pacific convergence zone (SPCZ) and inter-tropical convergence zone (ITCZ) are analyzed by using the Ensemble Empirical Mode De-composition method and lately 60-year’s sea surface salinity data. The results show that: both the sea surface salinity in the WP and SPCZ mainly show inter-annual variability, while it is dominated by annual cycle in the ITCZ. Moreover, the inter-decadal variability is relatively strong in the west warm pool but very weak in the ITCZ.

黎鑫, 陈建, 卢扬, 郑崇伟. 基于EEMD方法的热带太平洋海表盐度多尺度特征分析[J]. 海洋科学前沿, 2014, 1(2): 55-62.


[1] Gouriou, Y. and Delcroix, T. (2002) Seasonal and ENSO variations of sea surface salinity and temperature in the South Pacific Convergence Zone during 1976-2000. Journal of Geophysical Research, 107, 8011.
[2] Delcroix, T., Cravatte, S. and McPhaden, M.J. (2007) Decadal variations and trends in tropical Pacific sea surface salinity since 1970. Journal of Geophysical Research, 112, Article ID: C03012.
[3] Giese, B.S. and James, A.C. (1999) Interannual and decadal variability in the tropical and midlatitude Pacific Ocean. Journal of Climate, 12, 3402-3418.
[4] Lau, K.M. and Weng, H. (1999) Interannual, decadal-interdecadal, and global warming signals in sea surface temperature during 1955-97. Journal of Climate, 12, 1257-1267.
[5] Barbosa, S.M. and Andersen, O.B. (2009) Trend patterns in global sea surface temperature. International Journal of Climatology, 29, 2049-2055.
[6] Thompson, D.W.J., Wallace, J.M., Jones, P.D. and Kennedy, J.J. (2009) Identifying signatures of natural climate variability in time series of global-mean surface temperature: Methodology and insights. Journal of Climate, 22, 6120- 6141.
[7] Compo, G.P. and Sardeshmukh, P.D. (2010) Removing ENSO-related variations from the climate record. Journal of Climate, 23, 1957-1978.
[8] Singh, A. and Delcroix, T. (2011) Estimating the effects of ENSO upon the observed freshening trends of the western tropical Pacific Ocean. Geophysical Research Letters, 38, Article ID: L21607.
[9] Wu, Z., Huang, N.E., Long, S.R. and Peng, C.K. (2007) On the trend, detrending, and the variability of nonlinear and nonstationary time series. Proceedings of the National Academy of Sciences of the USA, 104, 14889-14894.
[10] Wu, Z. and Huang, N.E. (2009) Ensemble empirical mode decomposition: A noise-assisted data analysis method. Advances in Adaptive Data Analysis, 1, 1-41.
[11] Qian, C., Wu, Z., Fu, C. and Wang, D. (2011) On changing El Niño: A view from time-varying annual cycle, interannual variability, and mean state. Journal of Climate, 24, 6486-6499.
[12] Qian, C., Wu, Z. and Yan, Z. (2011) The role of changes in the annual cycle in earlier onset of climatic spring in northern China. Advances in Atmospheric Sciences, 28, 284-296.
[13] Delcroix, T., Alory, G., Cravatte, S., Corrège, T. and McPhaden, M. (2011) A gridded sea surface salinity data set for the tropical Pacific with sample applications (1950-2008). Deep Sea Research Part I, 58, 38-48.
[14] Huang, N.E., Shen, Z., Long, S.R., Wu, M.C., Shih, E.H., Zheng, Q., Tung, C.C. and Liu, H.H. (1998) The empirical mode decomposition and the Hilbert spectrum for nonlinear and nonstationary time series analysis. Proceedings of the Royal Society of London, 454A, 903-995.
[15] Qian, C., Wu, Z., Fu, C. and Zhou, T. (2010) On multi-timescale variability of temperature in China in modulated annual cycle reference frame. Advances in Atmospheric Sciences, 27, 1169-1182.