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

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Cited articles

Argo: Argo float data and metadata from Global Data Assembly Centre (Argo GDAC), SEANOE [data set],, 2022. 
Balibrea-Iniesta, F., Xie, J., Garcia-Garrido, V., Bertino, L., Maria Mancho, A., and Wiggins, S.: Lagrangian transport across the upper Arctic waters in the Canadian Basin, Q. J. Roy. Meteor. Soc., 145, 76–91,, 2018. 
Bertino, L., Ali, A., Carrasco, A., Lien, V., and Melsom, A.: THE ARCTIC MARINE FORECASTING CENTER IN THE FIRST COPERNICUS PERIOD. 9th EuroGOOS International conference, Shom; Ifremer; EuroGOOS AISBL, May 2021, Brest, France, 256–263, hal-03334274v2, (last access: 15 December 2022), 2021. 
Bouillon, S., Fichefet, T., Legat, V., and Madec, G.: The elastic-viscous-plastic method revised, Ocean Modell., 7, 2–12,, 2013. 
Boutin, J., Jean-Luc, V., and Dmitry, K.: SMOS SSS L3 maps generated by CATDS CEC LOCEAN, debias V3.0, SEANOE, (last access: 14 February 2022), 2018. 
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.