| Trends of sea surface temperature and sea surface temperature fronts in the South China Sea during 2003–2017 |
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| 引用本文： | 于溢,张浩然,靳江波,王云涛.Trends of sea surface temperature and sea surface temperature fronts in the South China Sea during 2003–2017[J].海洋学报(英文版),2019,38(4):106-115. |
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| 作者姓名： | 于溢 张浩然 靳江波 王云涛 |
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| 作者单位： | 自然资源部第二海洋研究所, 卫星海洋环境动力学国家重点实验室, 杭州, 310012,自然资源部第二海洋研究所, 卫星海洋环境动力学国家重点实验室, 杭州, 310012;河海大学, 海洋学院, 南京, 210098,中国科学院大气物理研究所, 国际气候与环境科学中心, 北京, 100029,自然资源部第二海洋研究所, 卫星海洋环境动力学国家重点实验室, 杭州, 310012;中国科学院大气物理研究所, 大气科学和地球流体力学数值模拟国家重点实验室, 北京, 100029 |
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| 基金项目： | The National Key Research and Development Program of China under contract No. 2016YFC1401601; the Scientific Research Fund of the Second Institute of Oceanography, MNR under contract No. JB1806; the National Natural Science Foundation of China under contract Nos 41806026, 41806041, 41706036 and 41730536; the Project of State Key Laboratory of Satellite Ocean Environment Dynamics, Second Institute of Oceanography, MNR under contract No. SOEDZZ1902. |
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| 摘 要： | The trends of the sea surface temperature(SST) and SST fronts in the South China Sea(SCS) are analyzed during2003–2017 using high-resolution satellite data. The linear trend of the basin averaged SST is 0.31°C per decade,with the strongest warming identified in southeastern Vietnam. Although the rate of warming is comparable in summer and winter for the entire basin, the corresponding spatial patterns of the linear trend are substantially different between them. The SST trend to the west of the Luzon Strait is characterized by rapid warming in summer, exceeding approximately 0.6°C per decade, but the trend is insignificant in winter. The strongest warming trend occurs in the southeast of Vietnam in winter, with much less pronounced warming in summer. A positive trend of SST fronts is identified for the coast of China and is associated with increasing wind stress. The increasing trend of SST fronts is also found in the east of Vietnam. Large-scale circulation, such as El Ni?o, can influence the trends of the SST and SST fronts. A significant correlation is found between the SST anomaly and Ni?o3.4 index, and the ENSO signal leads by eight months. The basin averaged SST linear trends increase after the El Ni?o event(2009–2010), which is, at least, due to the rapid warming rate causing by the enhanced northeasterly wind. Peaks of positive anomalous SST and negatively anomalous SST fronts are found to co-occur with the strong El Ni?o events.
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| 关 键 词： | 南海 海表面温度 海表面温度锋面 增温趋势 风应力 |
| 收稿时间： | 2018/6/26 0:00:00 |
Trends of sea surface temperature and sea surface temperature fronts in the South China Sea during 2003-2017 |
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| Yu Yi,Zhang Hao-Ran,Jin Jiangbo and Wang Yuntao.Trends of sea surface temperature and sea surface temperature fronts in the South China Sea during 2003-2017[J].Acta Oceanologica Sinica,2019,38(4):106-115. |
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| Authors: | Yu Yi Zhang Hao-Ran Jin Jiangbo and Wang Yuntao |
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| Institution: | State Key Laboratory of Satellite Ocean Environment Dynamics, Second Institute of Oceanography, Ministry of Natural Resources, Hangzhou 310012, China,State Key Laboratory of Satellite Ocean Environment Dynamics, Second Institute of Oceanography, Ministry of Natural Resources, Hangzhou 310012, China;College of Oceanography, Hohai University, Nanjing 210098, China,International Center for Climate and Environment Sciences, Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing 100029, China and State Key Laboratory of Satellite Ocean Environment Dynamics, Second Institute of Oceanography, Ministry of Natural Resources, Hangzhou 310012, China;State Key Laboratory of Numerical Modeling for Atmospheric Sciences and Geophysical Fluid Dynamics, Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing 100029, China |
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| Abstract: | The trends of the sea surface temperature (SST) and SST fronts in the South China Sea (SCS) are analyzed during 2003-2017 using high-resolution satellite data. The linear trend of the basin averaged SST is 0.31℃ per decade, with the strongest warming identified in southeastern Vietnam. Although the rate of warming is comparable in summer and winter for the entire basin, the corresponding spatial patterns of the linear trend are substantially different between them. The SST trend to the west of the Luzon Strait is characterized by rapid warming in summer, exceeding approximately 0.6℃ per decade, but the trend is insignificant in winter. The strongest warming trend occurs in the southeast of Vietnam in winter, with much less pronounced warming in summer. A positive trend of SST fronts is identified for the coast of China and is associated with increasing wind stress. The increasing trend of SST fronts is also found in the east of Vietnam. Large-scale circulation, such as El Niño, can influence the trends of the SST and SST fronts. A significant correlation is found between the SST anomaly and Niño3.4 index, and the ENSO signal leads by eight months. The basin averaged SST linear trends increase after the El Niño event (2009-2010), which is, at least, due to the rapid warming rate causing by the enhanced northeasterly wind. Peaks of positive anomalous SST and negatively anomalous SST fronts are found to co-occur with the strong El Niño events. |
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| Keywords: | South China Sea sea surface temperature sea surface temperature fronts warming trend wind stress |
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