Table 2.

List of retrieved parameters, their initial values, lower boundaries (LB), upper boundaries (UB) and constraints per each investigated method

Method	Retrieved parameter	Unit	Initial value	LB	UB	Constraint
1	V cmax	μmol CO2 m−2 s−1	70	0	250	Assimilation rate curves
2	V cmax	μmol CO2 m−2 s−1	70	0	250
	$K_{\mathrm{n}}^0$	—	2.48	2	6	F s and NPQ curves
	β	—	0.114	0	100
	γ	—	2.83	0	100
3	V cmax	μmol CO2 m−2 s−1	70	0	250	ChlF and R or T spectra
	$K_{\mathrm{n}}^0$	—	2.48	2	6
	ς	—	0.007	0	0.2

ChlF, Chl fluorescence; F _s, steady state fluorescence; R, reflectance; T, transmittance; NPQ, nonphotochemical quenching. For a full description of parameters, see Table 1.