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. Author manuscript; available in PMC: 2022 Sep 11.
Published in final edited form as: Nat Geosci. 2022 Mar 11;15(3):158–164. doi: 10.1038/s41561-022-00909-2

Figure 3. Water retention curve parameters are a key source of land surface model uncertainty.

Figure 3.

A sensitivity analysis of key model parameters of the ORCHIDEE land surface model31,32 was performed to demonstrate the relative importance of each parameter in simulating daily GPP at three contrasting FLUXNET sites: a) a temperate broadleaf forest (Harvard Forest, FLUXNET code US-Ha182); b) a boreal needleleaf forest (Sodankyla, FI-Sod,83); and c) a semi-arid savanna (Demokeya, SD-Dem84). The Sobol method30 was used to perform the sensitivity analysis; this method is based on variance decomposition and is able to capture interactions between parameters. More details can be found in the methods.