A rainfall storm precipitated in an area shown in the figure. below, the recorded rainfall depth in each station was as below: PA= 35 mm, PB 33 mm Pc= 38 mm, P=39 mm, and PE 43. Find: 1- Average rain fall over the area using Thiessen method. 2- Average intensity over the area in (mm/h) 3- Occurrence frequency for gage E, (E is in the center of the area) t (min) t 2 3 6 4 8 4.2 r=0.6km D 10 4.4 20 4.85 E 1.5km 40 5.3 B C 60 5.6 -0.6km) 100 5.9 200 6.3 300 6.5