Study on Water Quality Inversion Model of Dianchi Lake Based on Landsat 8 Data

Table 10

Relative errors of different models.

Water quality parameters	COD		DO		pH		NH3-N
	Relative error of neural network (%)	Relative error of neural network (%)	Relative error of neural network (%)	Relative error of multiple regression (%)	Relative error of neural network (%)	Relative error of multiple regression (%)	Relative error of neural network (%)	Relative error of multiple regression (%)
	4.25	7.77	2.54	2.83	1.79	1.97	6.90	26.07
	40.41	44.4	7.12	7.64	0.36	2.00	45.95	49.78
	3.01	7.13	0.29	0.13	2.30	2.06	12.5	5.33
	2.72	33.77	4.92	4.32	1.57	1.09	16.67	22.78
	19.8	25.26	6.18	1.40	0	4.25	0	36.41
	1.17	0.18	3.28	4.81	0.39	0.90	5	14.23
	1.62	7.51	4.31	4.01	0.23	0.23	20.69	18.31
	8.33	13.75	1.83	1.71	3.37	0.13	15.38	27.33
Average relative error (%)	9.68	17.48	3.81	3.36	1.25	1.58	15.39	24.97