| 河口物质和水体长期输运分离的理论分析和观测验证Ⅱ.长江口悬沙、盐度和水体长期输运分离的观测验证 |
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| 引用本文： | 张文静,朱首贤,丁平兴,沙文钰.河口物质和水体长期输运分离的理论分析和观测验证Ⅱ.长江口悬沙、盐度和水体长期输运分离的观测验证[J].海洋学报,2009,31(4):22-28. |
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| 作者姓名： | 张文静 朱首贤 丁平兴 沙文钰 |
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| 作者单位： | 1.中国海洋大学, 海洋环境学院, 山东青岛 266003;国家海洋局, 第二海洋研究所, 浙江杭州 310012;解放军理工大学气象学院, 江苏南京 211101 |
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| 基金项目： | 中国博士后科学基金，国家自然科学基金，近海海洋综合调查与评价专项 |
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| 摘 要： | 利用二维水体和物质长期输运速度及其机制分解形式,分析了长江口1997年洪季观测资料,从实践上认识悬沙、盐度和水体长期输运的分离程度.观测站资料的计算分析表明:最大浑浊带附近,二维悬沙和水体长期输运速度平均夹角为36.0°、速度量值平均相差29.9%,悬沙和水体长期输运具有明显的分离特征;盐度锋面附近,二维盐度和水体长期输运速度的平均夹角为43.6°、速度大小平均相差27.8%,盐度和水体长期输运具有明显的分离特征.
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| 关 键 词： | 长江口 悬沙长期输运 盐度长期输运 水体长期输运 分离研究 |
| 收稿时间： | 8/5/2008 12:00:00 AM |
| 修稿时间： | 3/9/2009 12:00:00 AM |
The theory analysis and observational validation for the separation of water and substance's long-term transport Ⅱ. The observational validation for the separation of water and substance's long-term transport |
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| ZHANG Wen-jing,ZHU Shou-xian,DING Ping-xing and SHA Wen-yu.The theory analysis and observational validation for the separation of water and substance's long-term transport Ⅱ. The observational validation for the separation of water and substance's long-term transport[J].Acta Oceanologica Sinica (in Chinese),2009,31(4):22-28. |
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| Authors: | ZHANG Wen-jing ZHU Shou-xian DING Ping-xing and SHA Wen-yu |
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| Institution: | College of Physical and Environmental Oceanography, Ocean University of China, Qingdao 266003, China;Second Institute of Oceanography, State Oceanic Administration, Hangzhou 310012, China;Meterology Institute of Pepole's Liberation Army Science and Engineering University, Nanjing 211101, China;College of Ocean Engineering, Hohai University, Nangjing 210098, China;State Key Laboratory of Estuarine and Coastal Research, East China Normal University, Shanghai 200062, China;Meterology Institute of Pepole's Liberation Army Science and Engineering University, Nanjing 211101, China |
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| Abstract: | With 2-D water and substance's long-term transport velocities and their decomposed items,the observation data is analyzed on 1997 flood season in the Changjiang Estuary to give the separation character of suspended sediment,salinity and water's long-term transport.In the turbidity maximum,the average value of the angle between 2-D suspended sediment's long-term transport velocity and 2-D water's longterm transport velocity is 36.0°,and the average discrepant value of their speeds is 29.9%,so there is obvious separation character of suspended sediment and water's long-term transport.In the salinity front,the average value of the angle between 2-D salinityps long-term transport velocity and 2-D water's longterm transport velocity is 43.6°,and the average discrepant value of their speeds is 27.8%,so there is also obvious separation character of salinity and water's long-term transport. |
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