Location and delta boundary of the five studied deltas. The location and delta boundary of each of the studied deltas. Map A shows the global context, B shows the location of the Ganges-Brahmaputra-Meghna (Bangladesh), C the location of the Rhine-Meuse-Scheldt (Netherlands), D the location of the Nile (Egypt), E the location of the Yangtze (China), F the location of the Mekong (Vietnam). DOI: https://doi.org/10.1525/elementa.128.f1