A Seven-Parameter BRDF Model with Double-Peak Characteristic Suitable for Sandy Soil

Table 2

Model parameters and error for Figure 7.

		k1	a		k2	b		error	Overall; error
(a)	0.0729	58.0301	0.9265	-0.0034	-3.3536	0.0273	0.1127	4.59%	1.79%
(b)								1.61%
(c)								1.06%
(d)								1.60%