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  

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

作　　者：张文静[1,2,3] 朱首贤[4] 丁平兴[5] 沙文钰[3] 

机构地区：[1]中国海洋大学海洋环境学院,山东青岛266003 [2]国家海洋局第二海洋研究所,浙江杭州310012 [3]解放军理工大学气象学院,江苏南京211101 [4]河海大学海洋学院,江苏南京210098 [5]华东师范大学河口海岸国家重点实验室,上海200062

出　　处：《海洋学报》2009年第4期22-28,共7页

基　　金：中国博士后科学基金(20080431065);国家自然科学基金(40306014);近海海洋综合调查与评价专项(908-02-01-04)

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。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 salinity＇s 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.

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 

分 类 号：P713[天文地球—海洋科学]