Table 4.

Statistical analysis of SPACSYS's performance on dynamics of N2O emissions for grid-to-grid simulations at grid points D5, F3, F5 and G4 only, and the single-point simulation.

Criteria	Total n = 158		D5 n = 37		F3 n = 84		F5 n = 19		G4 n = 18
	Grid-to-grid	Single	Grid-to-grid	Single	Grid-to-grid	Single	Grid-to-grid	Single	Grid-to-grid	Single
ME (× 10− 3)	0.7	1.0	− 0.5	− 0.6	1.7	2.4	0.3	0.2	− 0.2	2.5
RMSE (× 10− 3)	7.0	7.0	7.0	7.0	8.0	7.5	5.0	5.2	4.2	3.0
MAE (× 10− 3)	4.0	4.0	4.0	4.0	6.0	5.0	3.1	3.1	2.9	2.6
RE	17.2	3.1	6.7	0.5	− 34.5	− 16.1	5.5	2.5	− 9.9	66.5
EF	− 0.4	− 0.2	0.4	0.4	− 1.3	− 1.0	− 20.2	− 22.5	− 5.3	− 2.2
r	0.47	0.49	0.73	0.74	0.26	0.23	0.02	0.03	0.31	0.34
CD	0.62	0.74	0.85	0.84	0.49	0.68	0.05	0.04	0.15	0.42