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

Table 9

Fitting model of NH₃-N concentration.

Factor	Model	R ^2	Functional relation
B6 + B7	Linear logarithm	0.672	y = −0.0083x + 0.9465
B6	Linear logarithm	0.529	y = −0.0113x + 0.821
B7	Cubic	0.541	y = −0.0001x3 + 0.0108x2 − 0.3386x + 3.943