Question

ENGINEERING HYDROLOGY CIVL431 Assignment #1 Problem 11 The following data were observed at Demirköprü Dam site on Gediz River in June 1971. Find the monthly evaporation in mm from the reservoir surface of this dam. If there were a Class A pan installed nearby the reservoir, what would be the monthly evaporation observed from this pan? Storage at the beginning of the month : 4XY.Z - 10 m Storage at the end of the month 47x V -10 m Average surface area of reservoir in the month :3X.Y km Mean inflow : IX.X m/s Amount of water used for power generation Depth of rainfall for the month : 4Y.Z *10 m : NONE Average seepage rate in the month :ZYZZXlus Problem 2 For the same reservoir in Problem the area of lake surface decreased by 3% in the next month, July 1971, while the seepage, evaporation inflow and water used for power are the same. There was no rain in this month either. Determine the change in storage for this month. Problem 3 A certain basin is expected to receive XYZ mm of rainfall in June, where evaporation from soil surface and transpiration are estimated together as YZ mm. Total infiltrated water depth in the same month is assumed to be iz mm. If the area of the basin is XYZ km and there are no other losses, determine the surface runoff from this basin in mm depth, m' volume and Its average rate. Problem 4 Assume that during a storm it rained 12 mm over a basin of 7X km² area. There exists a lake with Z.X km area in the basin and it does not contribute to the surface flow. If the total infiltration depth was 9 mm for this storm and there were no other losses, determine the volume of surface runoff from the basin. Problem 5 Assume that a lake with an area of 7 hectares has an average inflow of O.XYZ m/s and outflow of ZYX lus during a certain month. Total precipitation in this month is 3x.Z mm and the decrease in storage is 5XYZ00 ml Determine the evaporation from this lake in m' and in mm for this month assuming negligible seepage from the lake. Note that X Y Z are the last 3 digits of your student number. Just insert them as they are. Eg, Mohamed Saced: 17352395 X Y Z

Answer 1

As per the HOMEWORKLIB RULES, only one question is to be answered. So, i am answering the 5th question.