Table 2.

The feature bands and the correlation coefficients.

Study Area	Spectral Index	Characteristic Band Number	Characteristic Band Wavelengths (nm)	Maximum Correlation Coefficient	Minimum Correlation Coefficient
Northwest China	R	0		0.64	0.41
	MSC	3	497, 503, 504	0.70	0.00
	MC	0		0.64	0.41
	MA	0		0.64	0.41
	SG	0		0.64	0.41
	SG-FD	0		0.64	0.00
	SG-SD	1	1888	0.76	0.00
	FD	1	1393	0.70	0.00
	SD	1	1392	0.71	0.00
	CR	3	479, 482, 487	0.73	0.00
	Log(1/R)	0		0.64	0.42
Honghu	R	10	974.1–1009.2	0.74	0.43
	MSC	0		0.64	0.00
	MC	10	974.1–1009.2	0.74	0.43
	MA	13	994.8–1015.2	0.71	0.44
	SG	17	993.9–1011.2	0.71	0.44
	SG-FD	27	515.9–588	0.79	0.00
	SG-SD	0		0.58	0.00
	FD	7	541.2–595.5	0.76	0.00
	SD	0		0.57	0.00
	CR	0		0.60	0.00
	Log(1/R)	9	974.1–1006.5	0.74	0.43