Fig. 2: Inter-catchment comparisons of geomorphic river mobility expressed as cumulative frequency distributions (CFD) of per-pixel locational probabilities.
From: Big data show idiosyncratic patterns and rates of geomorphic river mobility
a Mobility assessed over the entire observable length (1.00 D) of the trunk channel. b Mobility assessed over the downstream third of the trunk channel (0.33 D was selected to represent the most complete zone of data, see Fig. 3). Most CFD curves in (a) and (b) plot below the line of equality, indicating that per-pixel locational probabilities are not evenly distributed against normalised cumulative frequency. Variation in the intercept position (λ) between catchments indicates differences in the proportion of active channel areas that were constantly occupied over the analysis period. c Geographic distributions of the trunk channels and catchments used in this study. The colours of catchment labels correspond to the colours of the CFD curves in (a) and (b). The base maps are (a–c) the hillshaded digital elevation model (see Methods section).
