Based on the measured data string Wouri river, noticed the river floods usually last from 7 to 10 days. Since then the total amount of flood 1, 3, 5, 7, 9 and line 2 is calculated based on the data in Yabassi station. The determination of total flooding with different intervals based on correlation are shown in Table 3 to 7. The total amount of flood line 1 is reduced in accordance with the philosophy catchment area. The calculation results are shown in the table below. The results detailed calculations see Appendix
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