Table 1 Annual GPP optimisation performance metrics – mean across different regions and PFTs (with a grid cell fraction greater than a given fraction – see Methods): (i) Columns 2 and 3: prior and posterior mean annual GPP (2007–2011) in PgC; (ii) Column 4: % reduction in the annual GPP uncertainty (1σ) (2007–2011); (iii) Columns 5 and 6: prior and posterior mean monthly correlation between GPP and SIF (2007–2011) at global scale and for each biome. Biomes are based on the Köppen-Geiger (KG) classification derived by Peel M. C. et al.53.

From: Strong constraint on modelled global carbon uptake using solar-induced chlorophyll fluorescence data

Region/PFT

Prior mean annual GPP (PgC)

Posterior mean annual GPP (PgC)

Reduction in annual GPP uncertainty (%)

Prior mean monthly SIF-GPP correlation

Posterior mean monthly SIF-GPP correlation

Global

194.4

165.6

82.8

0.72

0.74

Temperate + boreal KG biome

88.6

67.1

67

0.77

0.77

Tropical KG biome

92.2

86.1

93.4

0.5

0.5

Arid KG biome

13.6

12.4

88.9

0.59

0.61