Fig. 1

a: mass per unit area distribution used for the validation of Set 1 Experiments # 0-11 and sample site locations. White (larger), turquoise, yellow, and pink dots are the sample site locations used for Experiments # 0-4, 5-9, 10, and 11, respectively. All sites shown in a are used in Set 2 experiments as sample site locations; b: mass per unit area distribution used for the experiment with the non-simplified wind profile. Small white points correspond to sample site locations. Mass per unit area distributions in a and b are in different resolutions. This difference is only for easier visualization (reducing the number of grid points to be plotted in b), and would not affect any arguments or conclusions from this work