Extended Data Fig. 7: Population uncertainty analysis.
From: Satellite imaging reveals increased proportion of population exposed to floods
a, Correction factors determined as the ratio of HRSL flood exposure to GHSL flood exposure per continent, where the centre line represents the median, the hinges represent the 25th and 75th percentiles, the upper whisker extends from the hinge to the largest value no further than 1.5*IQR (interquartile range) and the lower whiskers extends from the hinge to the smallest value no further than 1.5*IQR, and the dots show points outside the whisker range. b, Uncertainty analysis for each country plotted against flood exposure trends (2000–2015). Countries in the upper right quadrant represent regions with plausibly high uncertainty in population estimates, such that we are not confident in their flood exposure trends (unc., uncertainty; inc., increasing trends; dec., decreasing trends). Countries are labelled by their ISO 1366 standard Alpha-2 two-letter country codes (from LSIB) and coloured by continent.