Fig. 4.

Simulated reflectance ($R_0$) versus $\gamma$, $\sigma$, $\delta$, $R_{p\mathrm{NA}}$, and $p_{\mathrm{sb}}$, for an NA of 0.22 and ${\mu }_s^{\prime }d=0.1$; colors indicate phase function types. Note the log scales for both the reflectance, $R_{p\mathrm{NA}}$, and $p_{\mathrm{sb}}$. Here $p_{\mathrm{sb}}$ is most closely related to the semiballistic reflectance.