Inter‐annual and inter‐decadal variability of Kuroshio heat transport in the East China Sea
Inter‐annual and inter‐decadal variability of Kuroshio heat transport in the East China Sea
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DOI：
10.1002/joc.2295
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发表时间：
2012-03
期刊：
影响因子：
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通讯作者：
Qilong Zhang;Yijun Hou;T. Yan
中科院分区：
文献类型：
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作者：
Qilong Zhang;Yijun Hou;T. Yan
黑潮热输送 (KHT) 中发现了较高的年际和年代际变化，主要遵循 5.4 年、22 年和 2 年周期。 KHT 在 1976 年左右经历了急剧的气候跳跃。KHT 的年代际变化与太平洋年代际振荡 (PDO) 密切相关。从 1956 年到 2003 年，KHT 呈线性长期上升趋势，在此期间 KHT 增加了 0.65 × 1015 W。黑潮向东北的体积输送对PN断面KHT的贡献比海水温度的贡献更大。相关分析和综合分析表明，黑潮地区和南海南部的经向风异常是造成东海KHT年际变化的原因，即当南风（偏北）异常加强时，KHT增加（减少）。版权所有 © 2011 英国皇家气象学会
High inter‐annual and inter‐decadal variability was identified in the Kuroshio heat transport (KHT), primarily following 5.4‐, 22‐ and 2‐year cycles. The KHT experienced a sharp climatic jump around 1976. Inter‐decadal variability of the KHT was strongly associated with the Pacific Decadal Oscillation (PDO). A linear long‐term KHT upward trend was identified from 1956 to 2003, and the KHT increased 0.65 × 1015 W in this period. The northeastward volume transport of the Kuroshio made a greater contribution to the KHT across the PN section than sea temperature did. Correlation and composite analyses showed that the meridional wind anomalies over the Kuroshio area and the southern portion of the South China Sea were responsible for the inter‐annual variability of the KHT in the East China Sea, i.e. the KHT increased (decreased) when the southerly (northerly) anomalies strengthened. Copyright © 2011 Royal Meteorological Society