Adaptation of the Three-Dimensional Variational Data Assimilation Scheme for Water Temperature and Salinity Assimilation into the Operational System of the Gulf of Finland (GULFOOS)

Sofina E.V., Vankevich R.E., Eremina T.R., Isaev A.V.

The three-dimensional data assimilation module for temperature and salinity was installed in the operational system GULFOOS in preoperational mode. Three-dimensional variational assimilation scheme (3D-VAR) was adapted. Testing of the adapted system was performed on CTD data collected during the summer oceano-graphic survey in 2011 in the eastern Gulf of Finland. The quality of assimilated hydrophysical fields were tested on the independent data.

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