Table 1. Hyperspectral vegetation indices that were compared to estimated V_cmax and J_max values.

Index	Formula	Reference	R2 Vcmax	R2 Jmax
SR1	ρ750/ρ700	Gitelson and Merzlyak 1997 [57]	0.74	0.61
Double Difference	(ρ749-ρ720)-(ρ701-ρ672)	le Maire et al. 2004 [58]	0.74	0.58
Vogelmann1	ρ740/ρ720	Vogelmann et al. 1993 [59]	0.73	0.58
mSR705	(ρ750-ρ445)/(ρ705-ρ445)	Sims and Gamon 2002 [44]	0.73	0.57
SRCarter	ρ760/ρ695	Carter et al. 1994 [60]	0.72	0.61
Maccioni	(ρ780-ρ710)/(ρ780-ρ680)	Maccioni et al. 2001 [61]	0.72	0.55
SR3	ρ750/ρ550	Gitelson and Merzlyak 1997 [57]	0.70	0.63
Gitelson	1/ρ700	Gitelson et al. 1999 [62]	0.62	0.52
NDVI (MODIS-like)	(ρ NIRMODIS - ρ RedMODIS)/(ρ NIRMODIS + ρ RedMODIS)	see methods	0.60	0.50
Datt4	ρ672/(ρ550*ρ708)	Datt (1998) [63]	0.57	0.45
SR4	ρ700/ρ670	McMurtey et al. (1994)	0.57	0.36
SR2	ρ752/ρ690	Gitelson and Merzlyak 1997 [42]	0.56	0.53
NDVI (hyperspectral)	(ρ860-ρ690)/(ρ860+ρ690)	Stimson et al. 2005 [47]	0.49	0.46
Vogelmann2	(ρ734-ρ747)-(ρ715+ρ726)	Vogelmann et al. 1993 [59]	0.17	0.14
mNDVI	(ρ800-ρ680)/(ρ800+ρ680–2ρ445)	Sims and Gamon 2002 [44]	0.07	0.03ns
NDWI	(ρ860-ρ1240)/(ρ860+ρ1240)	Gao 1996 [64]	0.06	0.20
SIPI	(ρ800-ρ445)	Penuelas et al. 1995 [65]	0.06	0.03ns
PRI	(ρ531-ρ570)/(ρ531+ρ570)	Gamon 1997 [52]	0.02ns	0.00ns
mSRCHL	(ρ800-ρ445)/(ρ680-ρ445)	Sims and Gamon 2002 [44]	0.00ns	0.00ns

The predictive formula (ρ = spectral reflectance) and reference for each index is shown in addition to the coefficient of determination for V_cmax and J_max. Nonsignificant correlations are indicated with an “ns” superscript. Values of R² above 0.50 are bolded.