fig6

Figure 6. Comparison of water depth distribution in different rainfall return periods: (A) water depth distribution of Scenario V (P = 3 a, H = 2.0 m); (B) water depth distribution of Scenario VI (P = 5 a, H = 2.0 m); (C) water depth distribution of Scenario VII (P = 10 a, H = 2.0 m); and (D) water depth distribution of Scenario VIII (P = 20 a, H = 2.0 m).