Extended Data Figure 8: Results from steps in our processing chain for area outlined with black box in Extended Data Fig. 7.
Panel (a) shows all ‘lake’ polygons from the threshold NDWI/NDSI image (n = 2112 in full extent of Extended Data Fig. 7); (b) compares the final lake polygons after being filtered for median slope <10°, area >0.05 km2 and proximity to a glacier (n = 36) with manually digitized lake polygons (pink) (n = 35), and RGI/IMBIE glacier outlines in white. Note the false positives preserved after filtering in Kangerlussuatsiaq Fjord, described in the text. These were removed manually in the analyses presented in the Results but were included for the error analyses in Supplementary Data 1. Background image is the RGB mosaic for 2016-2017 produced for the error analysis.
