Fig. 3

Sum curves of grain size for all flood samples. The dashed black lines give the limits of PM_2.5 and PM₁₀, respectively. All sampling points are depicted in the map on the right. The dark blue area in the map indicates the inundated area in case of an extreme event (return period of significantly more than 100 years). The light blue colored area indicates the modeled inundation area for July 2021, which exceeds the designated inundation area of an extreme event