. 2008 Oct 10;8(10):6321–6339. doi: 10.3390/s8106321

Table 3.

Scene reflectance calibration ratios of SPOT multispectral images used in this study.

Image acquisition date	Reflectance calibration ratio $\frac{ρ_{c} (λ)}{{\bar{L}}_{s λ, c}^{'} (θ, ϕ_{d})}$

	Green	Red	Near infrared
7/04/2007	0.00282	0.00313	0.00420
7/19/2007	0.00232	0.00249	0.00410
8/23/2007	0.00331	0.00336	0.00532
9/03/2007	0.00345	0.00342	0.00500