Title

渤海、黄海、东海冬季海流场温度场数值模拟和同化技术

Translated Titles

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

Authors

赵骞(Qian Zhao);田纪伟(Ji-Wei Tian);曹丛华(Cong-Hua Cao);王强(Qiang Wang)

Key Words

温度场 ; 同化 ; 黄海暖流 ; temperature field ; assimilation ; the Huanghai Sea Warm Current

PublicationName

海洋學報

Volume or Term/Year and Month of Publication

27卷1期(2005 / 01 / 01)

Page #

1 - 6

Content Language

簡體中文

Chinese Abstract

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。

English Abstract

The nudging assimilation is used to simulate the three dimension 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 simulated 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 assimilation is better than that without data assimilation. The RMS between the assimilation data and the observed data of the three stations selected are 1.307, 0.526, 0.744 respectively, while the RMS between the temperature simulated by heat flux and the observed data are 2.160, 0.979, 1.330 respectively. Data assimilation effects the three dimensional temperature field although we only assimilate the sea surface temperature.

Topic Category 基礎與應用科學 > 海洋科學