Fig. 6. The distribution of f rc (see Eqn 21 for its definition) at each day conducting data assimilation (DA) by assimilating field measurements (DAfm) (a, c) or remote sensing observations (DArs) (b, d) and its overall relative cumulative frequency. The f rc of directly updated states, leaf weight (W leaf), leaf N content in the canopy (N leaf) and leaf area index (LAI), were shown in Panel a and b, while that of indirectly updated states, aboveground biomass (W above) and aboveground N accumulation (N above), are shown in Panel c and d.