Assimilation of sea surface salinities from SMOS in an Arctic coupled ocean and sea ice reanalysis

Xie, Jiping; Raj, Roshin P.; Bertino, Laurent; Martínez, Justino; Gabarró, Carolina; Catany, Rafael

doi:https://doi.org/10.5194/os-19-269-2023

Articles | Volume 19, issue 2

https://doi.org/10.5194/os-19-269-2023

© Author(s) 2023. This work is distributed under
the Creative Commons Attribution 4.0 License.

Special issue:

Data assimilation techniques and applications in coastal and...

https://doi.org/10.5194/os-19-269-2023

© Author(s) 2023. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 19, issue 2

Research article

|

09 Mar 2023

Research article |

| 09 Mar 2023

Assimilation of sea surface salinities from SMOS in an Arctic coupled ocean and sea ice reanalysis

Jiping Xie, Roshin P. Raj, Laurent Bertino, Justino Martínez, Carolina Gabarró, and Rafael Catany

Data sets

Arctic Ocean and Sea-ice Reanalysis from TOPAZ4 (1991-2018) J. Xie https://doi.org/10.11582/2022.00043

Short summary

Sea ice melt, together with other freshwater sources, has effects on the Arctic environment. Sea surface salinity (SSS) plays a key role in representing water mixing. Recently the satellite SSS from SMOS was developed in the Arctic region. In this study, we first evaluate the impact of assimilating these satellite data in an Arctic reanalysis system. It shows that SSS errors are reduced by 10–50 % depending on areas, encouraging its use in a long-time reanalysis to monitor the Arctic water cycle.