K.Belyaev
Russian Academy of Sciences, Moscow
On the correction of equilibrium of the model state after data assimilation procedure
Abstract: A method for the correction of velocities and other unobserved model values after temperature-salinity data assimilation is considered. The method is based on the spectral numerical solution of the linearised system of two-dimensional Navier-Stokes equation with Boussinesq approximation. The method is applied to the GFDL/NOAA ocean circulation model MOM_3 to correct perturbations caused by a ssimilation of vertical temperature profiles from the PIRATA database. The data assimilation technique used in the present study is based on the application of the Fokker-Planck equation.Several numerical experiments have been performed in the tropical Atlantic. The results showed that the method is able to correct the velocities fields smoothening unrealistic wave patterns due to assimilation. Future developments and applications of the method to geophysical research are also discussed.
| Zeit: | Freitag, 21. Januar 2005, 16.15 Uhr (Kaffee/Tee um 15.30) |
| Ort: | FU Berlin, Arnimallee 2-6, Raum 032 im EG |