Question 1 a. Explain briefly the evaporation process. b. Discuss the factors that affect the evaporation from a water b

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Question 1 A Explain Briefly The Evaporation Process B Discuss The Factors That Affect The Evaporation From A Water B 1 (147.23 KiB) Viewed 23 times

Question 1 A Explain Briefly The Evaporation Process B Discuss The Factors That Affect The Evaporation From A Water B 2 (27.43 KiB) Viewed 23 times

Question 1 a. Explain briefly the evaporation process. b. Discuss the factors that affect the evaporation from a water body. c. Discuss the importance of evaporation control of reservoirs and possible methods of achieving the same. d. Describe the factors affecting evapotranspiration process. e. Describe briefly () Reference crop evapotranspiration and (ii) Actual evapotranspiration f. Explain briefly the infiltration process and the resulting soil moisture zones in the soil. Question 2 A class A pan was set up adjacent to a lake. The depth of water in the pan at the beginning ofa certain week was 195 mm. In that week there was a rainfall of 45 mmand 15 mm of water was removed from the pan to keep the water level within the specified depth range. If the depth of the water in the pan at the end of the week was 190 mm calculate the panevaporation. Using a suitable pan coefficient estimate the lake evaporation in that week. Question 3 At a reservoir in the neighborhood of Kinoya the following climatic data were observed. Estimate the mean monthly and annual evaporation from the reservoir using Meyer's formula Month Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Temp. (°C) 12.5 15.8 20.7 27.0 31.0 33.5 30.6 29.0 28.2 Relative humidity (%) 85 82 71 48 41 52 78 86 82 75 77 73 Wind velocity at 2 m above GL (km/h) 4.0 5.0 5.0 5.0 7.8 10.0 8.0 5.5 5.0 28.8 18.9 13.7 4.0 3.6 4.0
Question 4 A reservoir had an average surface area of 20 km’ during June 1982. In that month the mean rate of inflow=10m/s, outflow=15 m/s, monthly rainfall=10 cm and change in storage = 16 million m’ Assuming the seepage losses to be 1.8 cm, estimate the evaporation in that month.