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Volume 27 Issue 1

Jan.  2010

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Article >  ADVANCES IN ATMOSPHERIC SCIENCES  > 2010 >  27(1): 87-94

Covariation of the Indonesian Throughflow and South China Sea Throughflow Associated with the 1976/77 Regime Shift

  • 1.

    Key Laboratory of Tropical Marine Environmental Dynamics, South China Sea Institute of Oceanology,Chinese Academy of Sciences, Guangzhou 510301,Key Laboratory of Tropical Marine Environmental Dynamics, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301,Guy Carpenter Asia-Pacific Climate Impact Centre, CityU-IAP Laboratory for Atmospheric Sciences, City University of Hong Kong, Hong Kong 00852,Key Laboratory of Tropical Marine Environmental Dynamics, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301,South China Sea Marine Engineering Prospecting, State Oceanic Administration, Guangzhou 510300


doi: 10.1007/s00376-009-8061-3

  • Changes in the Indonesian Throughflow (ITF) and the South China Sea throughflow---measured by the Luzon Strait Transport (LST)---associated with the 1976/77 regime shift are analyzed using the Island Rule theory and the Simple Ocean Data Assimilation dataset. Results show that LST increased but ITF transport decreased after 1975. Such changes were induced by variations in wind stress associated with the regime shift. The strengthening of the easterly wind anomaly east of the Luzon Strait played an important role in the increase of LST after 1975, while the westerly wind anomaly in the equatorial Pacific contributed significantly to the decrease in ITF transport after 1975, accounting for 53% of the change. After 1975, the Kuroshio Current strengthened and the Mindanao Current weakened in response to a decrease in the total transport of the North Equatorial Current. Both the North Equatorial Countercurrent and the South Equatorial Current weakened after 1975, and an anomalous cyclonic circulation in the western equatorial Pacific prevented the tropical Pacific water from entering the Indian Ocean directly.
  • [1] LIU Hailong, LI Wei, ZHANG Xuehong, 2005: Climatology and Variability of the Indonesian Throughflow in an Eddy-permitting Oceanic GCM, ADVANCES IN ATMOSPHERIC SCIENCES, 22, 496-508.  doi: 10.1007/BF02918483
    [2] ZHOU Qian, DUAN Wansuo, MU Mu, FENG Rong, 2015: Influence of Positive and Negative Indian Ocean Dipoles on ENSO via the Indonesian Throughflow: Results from Sensitivity Experiments, ADVANCES IN ATMOSPHERIC SCIENCES, 32, 783-793.  doi: 10.1007/s00376-014-4141-0
    [3] WANG Dongxiao, WANG Jia, Lixin WU, Zhengyu LIU, 2003: Regime Shifts in the North Pacific Simulated by a COADS-driven Isopycnal Model, ADVANCES IN ATMOSPHERIC SCIENCES, 20, 743-754.  doi: 10.1007/BF02915399
    [4] WEI Ke, CHEN Wen, 2011: An Abrupt Increase in the Summer High Temperature Extreme Days across China in the mid-1990s, ADVANCES IN ATMOSPHERIC SCIENCES, 28, 1023-1029.  doi: 10.1007/s00376-010-0080-6
    [5] XU Tengfei, YUAN Dongliang, YU Yongqiang, and ZHAO Xia, 2013: An assessment of Indo-Pacific oceanic channel dynamics in the FGOALS-g2 coupled climate system model, ADVANCES IN ATMOSPHERIC SCIENCES, 30, 997-1016.  doi: 10.1007/s00376-013-2131-2
    [6] Zhida HUANG, Hailong LIU, Pengfei LIN, Jianyu HU, 2017: Influence of Island Chains on the Kuroshio Intrusion in the Luzon Strait, ADVANCES IN ATMOSPHERIC SCIENCES, 34, 397-410.  doi: 10.1007/s00376-016-6159-y
    [7] Zhida HUANG, Hailong LIU, Jianyu HU, Pengfei LIN, 2016: A Double-Index Method to Classify Kuroshio Intrusion Paths in the Luzon Strait, ADVANCES IN ATMOSPHERIC SCIENCES, 33, 715-729.  doi: 10.1007/s00376-015-5171-y
    [8] FU Jianjian, LI Shuanglin, 2013: The Influence of Regional SSTs on the Interdecadal Shift of the East Asian Summer Monsoon, ADVANCES IN ATMOSPHERIC SCIENCES, 30, 330-340.  doi: 10.1007/s00376-012-2062-3
    [9] FU Jianjian, LI Shuanglin, LUO Dehai, 2009: Impact of Global SST on Decadal Shift of East Asian Summer Climate, ADVANCES IN ATMOSPHERIC SCIENCES, 26, 192-201.  doi: 10.1007/s00376-009-0192-z
    [10] Xiaofan LI, SHEN Xinyong, 2012: Temporal and Spatial Scale Dependence of Precipitation Analysis over the Tropical Deep Convective Regime, ADVANCES IN ATMOSPHERIC SCIENCES, 29, 1390-1394.  doi: 10.1007/s00376-012-1269-7
    [11] ZHOU Feifan, MU Mu, 2012: The Time and Regime Dependencies of Sensitive Areas for Tropical Cyclone Prediction Using the CNOP Method, ADVANCES IN ATMOSPHERIC SCIENCES, 29, 705-716.  doi: 10.1007/s00376-012-1174-0
    [12] JIANG Zhina, MU Mu, WANG Donghai, 2011: Optimal Perturbations Triggering Weather Regime Transitions: Onset of Blocking and Strong Zonal Flow, ADVANCES IN ATMOSPHERIC SCIENCES, 28, 59-68.  doi: 10.1007/s00376-010-9097-0
    [13] LIU Qinyan, Ruixin HUANG, WANG Dongxiao, 2012: Implication of the South China Sea Throughflow for the Interannual Variability of the Regional Upper-Ocean Heat Content, ADVANCES IN ATMOSPHERIC SCIENCES, 29, 54-62.  doi: 10.1007/s00376-011-0068-x
    [14] WANG Weiwen, WANG Dongxiao, ZHOU Wen, LIU Qinyan, YU Yongqiang, LI Chao, 2011: Impact of the South China Sea Throughflow on the Pacific Low-Latitude Western Boundary Current: A Numerical Study for Seasonal and Interannual Time Scales, ADVANCES IN ATMOSPHERIC SCIENCES, 28, 1367-1376.  doi: 10.1007/s00376-011-0142-4
    [15] HAN Ying, WU Rongsheng, FANG Juan, 2006: Shearing Wind Helicity and Thermal Wind Helicity, ADVANCES IN ATMOSPHERIC SCIENCES, 23, 504-512.  doi: 10.1007/s00376-006-0504-5
    [16] WU Fanghua, LIN Pengfei, LIU Hailong, 2012: Influence of a Southern Shift of the ITCZ from Quick Scatterometer Data on the Pacific North Equatorial Countercurrent, ADVANCES IN ATMOSPHERIC SCIENCES, 29, 1292-1304.  doi: 10.1007/s00376-012-1149-1
    [17] YE Duzheng, JIANG Yundi, DONG Wenjie, 2003: The Northward Shift of Climatic Belts in China During the Last 50 Years and the Corresponding Seasonal Responses, ADVANCES IN ATMOSPHERIC SCIENCES, 20, 959-967.  doi: 10.1007/BF02915519
    [18] SUN Jianqi, YUAN Wei, 2009: Contribution of the Sea Surface Temperature over the Mediterranean-Black Sea to the Decadal Shift of the Summer North Atlantic Oscillation, ADVANCES IN ATMOSPHERIC SCIENCES, 26, 717-726.  doi: 10.1007/s00376-009-8210-8
    [19] CHEN Wei, and LU Riyu, 2014: A Decadal Shift of Summer Surface Air Temperature over Northeast Asia around the Mid-1990s, ADVANCES IN ATMOSPHERIC SCIENCES, 31, 735-742.  doi: 10.1007/s00376-013-3154-4
    [20] HU Zhiqun, and LIU Liping, 2014: Applications of Wavelet Analysis in Differential Propagation Phase Shift Data De-noising, ADVANCES IN ATMOSPHERIC SCIENCES, 31, 825-835.  doi: 10.1007/s00376-013-3095-y
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    • Manuscript History

    Manuscript received: 10 January 2010
    Manuscript revised: 10 January 2010
    通讯作者: 陈斌, bchen63@163.com
    • 1. 

      沈阳化工大学材料科学与工程学院 沈阳 110142

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    Covariation of the Indonesian Throughflow and South China Sea Throughflow Associated with the 1976/77 Regime Shift

    • 1. Key Laboratory of Tropical Marine Environmental Dynamics, South China Sea Institute of Oceanology,Chinese Academy of Sciences, Guangzhou 510301,Key Laboratory of Tropical Marine Environmental Dynamics, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301,Guy Carpenter Asia-Pacific Climate Impact Centre, CityU-IAP Laboratory for Atmospheric Sciences, City University of Hong Kong, Hong Kong 00852,Key Laboratory of Tropical Marine Environmental Dynamics, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301,South China Sea Marine Engineering Prospecting, State Oceanic Administration, Guangzhou 510300
    • Manuscript received: 2010-01-10
    • Manuscript revised: 2010-01-10

    Abstract: Changes in the Indonesian Throughflow (ITF) and the South China Sea throughflow---measured by the Luzon Strait Transport (LST)---associated with the 1976/77 regime shift are analyzed using the Island Rule theory and the Simple Ocean Data Assimilation dataset. Results show that LST increased but ITF transport decreased after 1975. Such changes were induced by variations in wind stress associated with the regime shift. The strengthening of the easterly wind anomaly east of the Luzon Strait played an important role in the increase of LST after 1975, while the westerly wind anomaly in the equatorial Pacific contributed significantly to the decrease in ITF transport after 1975, accounting for 53% of the change. After 1975, the Kuroshio Current strengthened and the Mindanao Current weakened in response to a decrease in the total transport of the North Equatorial Current. Both the North Equatorial Countercurrent and the South Equatorial Current weakened after 1975, and an anomalous cyclonic circulation in the western equatorial Pacific prevented the tropical Pacific water from entering the Indian Ocean directly.

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