Advances in Meteorology

Research Article

Some Aspects of Sensitivity Analysis in Variational Data Assimilation for Coupled Dynamical Systems

Table 3

Results of verification of 4D-Var cost function gradient for and .
10−40.8727731981461396−0.8954213897009056
10−50.9975483775420343−2.6105464089686840
10−60.9998765512756632−3.9085133935113787
10−70.9999884562844123−4.9376543818657845
10−80.9999979865432855−5.6960577024708600
10−90.9999998912431426−6.9635433500893210
10−100.9999999244103234−7.1215375125562080