An ensemble adjustment Kalman filter study for Argo data

Xunqiang Yin; Fangli Qiao; Yongzeng Yang; Changshui Xia

doi:10.1007/s00343-010-9017-2

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An ensemble adjustment Kalman filter study for Argo data

OriginalPaper | Updated：2023-05-16

- An ensemble adjustment Kalman filter study for Argo data
- An ensemble adjustment Kalman filter study for Argo data
- 海洋湖沼学报（英文） 2010年28卷第3期页码：626-635
- Affiliations：
  
  1. The First Institute of Oceanography SOA
  2. Key Laboratory of Marine Science and Numerical Modeling (MASNUM) SOA
- Author bio：
- Funds：
  
  Supported by the Project of National Basic Research Program of China (No. 2007CB816002), Special Fund for Fundamental Scientific Research (No. 2008G08).
- DOI：10.1007/s00343-010-9017-2
  中图分类号：
- 网络首发：2010-05-20，
  
  纸质出版：2010
- Accepted：
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An ensemble adjustment Kalman filter study for Argo data[J]. 海洋湖沼学报（英文）, 2010,28(3):626-635.

Yin, X., Qiao, F., Yang, Y. et al. An ensemble adjustment Kalman filter study for Argo data., Chin. J. Ocean. Limnol. 28, 626–635 (2010). https://doi.org/10.1007/s00343-010-9017-2
An ensemble adjustment Kalman filter study for Argo data[J]. 海洋湖沼学报（英文）, 2010,28(3):626-635. DOI： 10.1007/s00343-010-9017-2.

Yin, X., Qiao, F., Yang, Y. et al. An ensemble adjustment Kalman filter study for Argo data., Chin. J. Ocean. Limnol. 28, 626–635 (2010). https://doi.org/10.1007/s00343-010-9017-2 DOI：

摘要

Abstract

An ensemble adjustment Kalman filter system is developed to assimilate Argo profiles into the Northwest Pacific MASNUM wave-circulation coupled model

which is based on the Princeton Ocean Model (POM). This model was recoded in FORTRAN-90 style

and some new data types were defined to improve the efficiency of system design and execution. This system is arranged for parallel computing by using UNIX shell scripts: it is easier with single models running separately with the required information exchanged through input/output files. Tests are carried out to check the performance of the system: one for checking the ensemble spread and another for the performance of assimilation of the Argo data in 2005. The first experiment shows that the assimilation system performs well. The comparison with the Satellite derived sea surface temperature (SST) shows that modeled SST errors are reduced after assimilation; at the same time

the spatial correlation between the simulated SST anomalies and the satellite data is improved because of Argo assimilation. Furthermore

the temporal evolution/trend of SST becomes much better than those results without data assimilation. The comparison against GTSPP profiles shows that the improvement is not only in the upper layers of ocean

but also in the deeper layers. All these results suggest that this system is potentially capable of reconstructing oceanic data sets that are of high quality and are temporally and spatially continuous.

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references

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