Extended Data Fig. 9: Summary of results for the demonstration regions (see Extended Data Fig. 4, 6).
a, Histogram of total lake count per area bin from automated optical (blue) and manual (red) methods for the HMA test region; (b) Histogram of total lake count per area bin from automated optical (blue) and manual (red) methods for the Greenland test region; (c) Comparison of lake area (km2) from automated optical against manual methods for both study areas. Vertical and horizontal error bars in (c) are per Haritashya et al.2. Note that the error analysis shown here (and in Supplementary Data 1) was performed prior to any manual modifications to the automatically mapped polygons. In other words, the raw but filtered output from the model was used. Data points on the X and Y axes represent lake polygons that either changed sufficiently to have different centroid coordinates, or else were not mapped in either the manual or automated procedures.
