Assimilating temperature and salinity profiles using Ensemble Kalman Filter with an adaptive observation error and T-S constraint
文献类型：期刊论文
| 作者 | Liu Danian; Shi Ping; Shu Yeqiang; Yao Jinglong; Wang Dongxiao; Sun Lu |
| 刊名 | ACTA OCEANOLOGICA SINICA
 |
| 出版日期 | 2016 |
| 卷号 | 35期号:1页码:30-37 |
| 关键词 | Ensemble Kalman Filter adaptive observation error T-S constraint |
| 通讯作者 | Shu, YQ (reprint author), Chinese Acad Sci, South China Sea Inst Oceanol, State Key Lab Trop Oceanog, Guangzhou 510301, Guangdong, Peoples R China. |
| 中文摘要 | Temperature (T) and salinity (S) profiles from conductivity-temperature-depth data collected during the Northern South China Sea Open Cruise from August 16 to September 13, 2008 are assimilated using Ensemble Kalman Filter (EnKF). An adaptive observational error strategy is used to prevent filter from diverging. In the meantime, aiming at the limited improvement in some sites caused by the T and S biases in the model, a T-S constraint scheme is adopted to improve the assimilation performance, where T and S are separately updated at these locations. Validation is performed by comparing assimilated outputs with independent in situ data (satellite remote sensing sea level anomaly (SLA), the OSCAR velocity product and shipboard ADCP). The results show that the new EnKF assimilation scheme can significantly reduce the root mean square error (RMSE) of oceanic T and S compared with the control run and traditional EnKF. The system can also improve the simulation of circulations and SLA. |
| 学科主题 | Oceanography |
| 源URL | [http://ir.scsio.ac.cn/handle/344004/15584]  |
| 专题 | 南海海洋研究所_热带海洋环境国家重点实验室(LTO) |
| 推荐引用方式 GB/T 7714 | Liu Danian,Shi Ping,Shu Yeqiang,et al. Assimilating temperature and salinity profiles using Ensemble Kalman Filter with an adaptive observation error and T-S constraint[J]. ACTA OCEANOLOGICA SINICA,2016,35(1):30-37. |
| APA | Liu Danian,Shi Ping,Shu Yeqiang,Yao Jinglong,Wang Dongxiao,&Sun Lu.(2016).Assimilating temperature and salinity profiles using Ensemble Kalman Filter with an adaptive observation error and T-S constraint.ACTA OCEANOLOGICA SINICA,35(1),30-37. |
| MLA | Liu Danian,et al."Assimilating temperature and salinity profiles using Ensemble Kalman Filter with an adaptive observation error and T-S constraint".ACTA OCEANOLOGICA SINICA 35.1(2016):30-37. |
入库方式： OAI收割
来源：南海海洋研究所
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