Averaging Domain Year Model


(Fig 1a) Level 4 product (model mean) Prior Land Fluxes
(Fig 1b) Level 4 product (model mean) Prior Land Flux Uncertainties
(Fig 1c) Level 4 product (model mean) IS Land Fluxes
(Fig 1d) Level 4 product (model mean) IS Land Flux Uncertainties
(Fig 1e) Level 4 product (model mean) LN Land Fluxes
(Fig 1f) Level 4 product (model mean) LN Land Flux Uncertainties
(Fig 1g) Level 4 product (model mean) LG Land Fluxes
(Fig 1h) Level 4 product (model mean) LG Land Flux Uncertainties

Figure 1. Annual-mean CO2 land fluxes and flux uncertainties for 2015 from the Level 4 product (model mean), both in gC m-2 yr-1.
  • Figure 1a: Land fluxes from the Prior experiment.
  • Figure 1b: Land flux uncertainties from the Prior experiment.
  • Figure 1c: Land fluxes from the IS experiment.
  • Figure 1d: Land flux uncertainties from the IS experiment.
  • Figure 1e: Land fluxes from the LN experiment.
  • Figure 1f: Land flux uncertainties from the LN experiment.
  • Figure 1g: Land fluxes from the LG experiment.
  • Figure 1h: Land flux uncertainties from the LG experiment.
Each model has a different definition of land and ocean. Some models in particular use either coarse flux grids or correlation length scales that can put apparent land fluxes in the ocean or vice versa. There's no single way to handle these different definitions without some incongruity; we have chosen here to preserve total land and total ocean flux. As a result, some small artifacts are apparent in these graphics.

(Fig. 2a) Land 2015 Fluxes
(Fig. 2b) Land 2015 Flux Uncertainties

Figure 2. Annual-mean CO2 land fluxes and flux uncertainties in gC m-2 yr-1 from the Level 4 product (model mean) for 2015. From left to right, each row contains comparison plots for the prior (unoptimized) condition, the IS experiment, the LN experiment, and the LG experiment.
  • Figure 2a: Fluxes.
  • Figure 2b: Flux uncertainties.
Each model has a different definition of land and ocean. Some models in particular use either coarse flux grids or correlation length scales that can put apparent land fluxes in the ocean or vice versa. There's no single way to handle these different definitions without some incongruity; we have chosen here to preserve total land and total ocean flux. As a result, some small artifacts are apparent in these graphics.