Table 4. Normalized RMSE for modeled flux for the TKC and KHW sites.

	TKC			KHW
	GPP	RE	NEE	GPP	RE	NEE	Soil resp.
STEP-0	0.25	0.38	0.43	0.53	0.50	0.57	0.87
STEP-1	0.27	0.40	0.41	0.57	0.46	0.52	0.42
STEP-2	0.11	0.34	0.28	0.23	0.22	0.23	0.25

N = 365 for the TKC, N = 36 for the KHW.