Table 2.

List of scalars applied to GOSIF (based on SIF retrievals at 757 nm) on an 8-day time step, specific to each vegetation type. The squared correlation coefficients (R²) between GOSIF and TROPOSIF from 2018 to 2020 across different vegetation classes are indicated. R² in the annual GPP from VPRM with annual GOSIF and TROPOSIF across different vegetation classes are also provided for the year 2019.

Vegetation class	SGOSIF	R2 (GOSIF vs TROPOSIF)	R2 (GPPVPRM vs TROPOSIF)	R2 (GPPVPRM vs GOSIF)
Grassland	2.81	0.22	0.22	0.52
Cropland	4.62	0.45	0.48	0.53
Savanna	4.35	0.56	0.22	0.29
Shrubland	4.35	0.62	0.77	0.84
Deciduous forest	4.17	0.56	0.46	0.55
Evergreen forest	4.02	0.52	0.59	0.59
Mixed forest	3.94	0.55	0.44	0.52