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

DOI: 10.12677/AMS.2014.12009, PP. 55-62

Keywords: 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

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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.


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