Table II.

Functional Forms for Scattered Reflectance

Function	Form	X1	X2	X3
$f_{\perp }^1$	x1+x2m−1+x3θ−1	9.06E5	−1.43E5	−5.13E5
$f_{\left|\right|}^1$	exp(x1+x2m+x3θ−2)	15	−0.564	−81.3
$f_{\perp }^2$	x1+x2m+x3θ0.5	1.105	0.225	0.0129
$f_{\left|\right|}^2$	x1+x2m+x3θ1.5	0.218	0.357	4.28E-4