渤海、黄海、东海冬季海流场温度场数值模拟和同化技术

赵骞; 田纪伟; 曹丛华; 王强

渤海、黄海、东海冬季海流场温度场数值模拟和同化技术

1.
中国海洋大学, 物理海洋实验室, 山东, 青岛, 266003
2.
国家海洋局, 北海分局, 山东, 青岛, 266033

基金项目: 国家科技攻关计划(2001BA603B-03);国家高技术研究发展计划(2001AA637010;2001AA633030)

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出版历程
- 收稿日期: 2003-11-20
- 修回日期: 2004-07-20

The numerical simulation and the assimilation technique of the current and the temperature field in the Bohai Sea, the Huanghai Sea and the East China Sea

1.
Physical Oceanography Laboratory, Ocean University of China, Qingdao 266003, China
2.
North China Sea Branch, State Oceanic Administra tion, Qingdao 266033, China

摘要

摘要: 利用NASA高分辨率的卫星遥感资料SST,采用Nudging同化来模拟渤海、黄海、东海的三维温度场,减小用热通量作上边界条件所带来的误差.结果表明,模拟的海流场能较好地反映渤海、黄海、东海的环流特征.数据同化后的温度场优于未经同化的温度场.3个选择站点的同化值与实测值的均方根误差分别为1.307,0.526,0.744,用热通量资料模拟的水温与实测值的均方根误差分别为2.160,0.979,1.330.尽管只同化了海表温度,但数据同化对三维温度场结构都有影响.
- 温度场 /
- 同化 /
- 黄海暖流
Abstract: The nudging assmiilation is used to smiulate the three dmiension temperature field of the Bohai Sea,the Huanghai Sea and the East China Sea to reduce the error of using heat flux as the upper boundary condition with the use of the high resolution satellite remote sensing data SST.The result shows that the smiulated current field can reflect the circulation characteristics of the Bohai Sea,the Huanghai Sea and the East China Sea satisfactorily.The temperature field after data assmi ilation is better than that without data assmi ilation.The RMS bewteen the assmi ilation data and the observed data of the three stations selected are 1.307,0.526,0.744 respectively,while the RMS between the temperature smiulated by heat flux and the observed data are 2.160,0.979,1.330 respectively.Data assmi ilation effects the three dmiensional temperature field a lthough we only assmiilate the sea surface temperature.
- temperature field /
- assmi ilation /
- the Huanghai SeaWarm Current

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