Estimation of Open Boundary Conditions for an Internal Tidal Model with Adjoint Method: A Comparative Study on Optimization Methods

Table 1

Inversion error (in the root mean square sense) and correlation coefficient between the inverted and prescribed OBCs.

Group	Inversion error			Correlation coefficient
	L-BFGS	GDM-W	GDM-S	L-BFGS	GDM-W	GDM-S
1	0.0105	0.0571	0.0361	0.9995	0.9865	0.9947
2	0.0094	0.0566	0.0372	0.9996	0.9868	0.9943
3	0.3038	0.2753	0.0193	0.8935	0.8482	0.9986