东海与邻近海域水、热、盐通量的季节变化研究

齐继峰; 尹宝树; 张启龙; 杨德周; 陈海英

doi:10.3969/j.issn.0253-4193.2016.11.001

东海与邻近海域水、热、盐通量的季节变化研究

doi: 10.3969/j.issn.0253-4193.2016.11.001

1.
中国科学院海洋研究所, 山东青岛 266071;中国科学院海洋环流与波动重点实验室, 山东青岛 266071;青岛海洋科学与技术国家实验室海洋动力过程与气候功能实验室, 山东青岛 266000
2.
中国科学院海洋研究所, 山东青岛 266071;中国科学院海洋环流与波动重点实验室, 山东青岛 266071;青岛海洋科学与技术国家实验室海洋动力过程与气候功能实验室, 山东青岛 266000;中国科学院大学, 北京 100049
3.
中国科学院海洋研究所, 山东青岛 266071;中国科学院海洋环流与波动重点实验室, 山东青岛 266071

基金项目: 国家自然科学基金项目（41506020，41476019，41376030）；中科院先导专项A项目（XDA11020104，XDA11020305）；国家自然科学基金创新研究群体科学基金（41421005）；国家自然科学基金委员会-山东省人民政府联合资助海洋科学研究中心项目（U1406401）。

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出版历程
- 收稿日期: 2015-11-10
- 修回日期: 2016-05-13

Seasonal variation of the volume, heat and salt transport in the East China Sea and adjacent regions

1.
Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China;Key Laboratory of Ocean Circulation and Waves, Chinese Academy of Science, Qingdao 266071, China;Marine Dynamic Process and Climate Function Laboratory, Qingdao National Laboratory for Marine Science and Technology, Qingdao 266000, China
2.
Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China;Key Laboratory of Ocean Circulation and Waves, Chinese Academy of Science, Qingdao 266071, China;Marine Dynamic Process and Climate Function Laboratory, Qingdao National Laboratory for Marine Science and Technology, Qingdao 266000, China;University of Chinese Academy of Sciences, Beijing 100049, China
3.
Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China;Key Laboratory of Ocean Circulation and Waves, Chinese Academy of Science, Qingdao 266071, China

摘要

摘要: 本文基于高分辨率的区域海洋数值模式对东海及邻近海域进行温、盐、流的数值模拟，模拟结果与实测结果拟合较好。结果表明：东海与邻近海域的水交换过程具有显著的季节变化特征。从流量的角度看，台湾海峡、台湾-西表岛之间水道和西表岛-冲绳岛之间水道是外海水流入东海的3个主要水道，而冲绳岛-奄美大岛、吐噶喇海峡、大隅海峡、济州岛东部和黄东海断面是海水流出东海的水道；其年平均体积输运值分别为1.06×10⁶ m³/s、20.49×10⁶ m³/s、3.20×10⁶ m³/s、-0.92×10⁶ m³/s、-20.59×10⁶ m³/s、-0.30×10⁶ m³/s、-2.37×10⁶ m³/s和-0.37×10⁶ m³/s（向内为正）。对比发现，东海与邻近海域之间各水道的体积、热量和盐量输运均具有相似的季节变化趋势，其最大值往往出现在夏季（7月或8月），最小值往往出现在冬季（1月或2月）。从7月到11月整个东海是流量净流出的过程，而从12月到翌年6月是流量净流入的过程，全年流量基本上保持平衡状态。东海终年存在向黄海的净输入，其体积、热量和盐量的年平均输运值分别为0.37×10⁶ m³/s，0.027×10¹⁵ W和12.7×10⁶ kg/s。
- 东海 /
- 水交换 /
- 季节变化 /
- 数值模拟 /
- 区域海洋数值模式
Abstract: In this paper, based on a nested high resolution reginal ocean modeling system, the relatively complete system of the circulation structure in the East China Sea is constructed. By comparing the model results with the existing estimates based on measurements, the numerical model results show agreement with the observation well. The results indicate that the water exchange in the East China Sea exhibit pronounced seasonal variations. From the view of the volume transport, the Taiwan Strait, the sections east of Taiwan and the section between Iriomote Island and Okinawa Island are the main sections flow into the East China Sea, however, the section between Okinawa Island and Amami Island, Tokara Strait, the Osumi Strait, the section east of Cheju Island, and the section between East China Sea and Yellow Sea are the main sections flow out of the East China Sea. The annual mean volume transport through these sections are 1.06×10⁶ m³/s、20.49×10⁶ m³/s、3.2×10⁶ m³/s、-0.92×10⁶ m³/s、-20.59×10⁶ m³/s、-0.30×10⁶ m³/s、-2.37×10⁶ m³/s and -0.37×10⁶ m³/s (inflow is positive). Comparison of these transports (volume, heat and salinity) indicate that these transport in the East China Sea have similar trends, the maximum flux often appeared in summer (July or August), and the minimum often appeared in winter (January or February). The calculation of volume balance indicates that from July to November that the East China Sea has a net outflow, however, from December to June it has a net inflow. The East China Sea flow into the Yellow Sea throughout the year, the annual mean value of the volume, heat and salt transport are 0.37×10⁶ m³/s,0.027×10¹⁵ W and 12.7×10⁶ kg/s respectively.
- East China Sea /
- water exchange /
- seasonal variation /
- numerical simulation /
- ROMS

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