What is the average daily -1 evaporation loss from reservoir with an average water spread area of 15 km^2 in a month having lake * evaporation of 20 cm 300000 m3 200000 m3 150000 m3
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- a) Estimate the constant rate of withdrawal from a 1375 ha reservoir in a month of 30 days during which thereservoir level dropped by 0.75 m in spite of an average inflow into the reservoir of 0.5 Mm3 /day. During themonth, the average seepage loss from the reservoir was 2.5 cm, total precipitation on the reservoir was 18.5 cmand the total evaporation was 9.5 cm.A lake has a surface area of 7.0 x 105 m² During a given month, the mean inflow to the lake was 2.5 m³/s. The increase in stored lake volume was observed to be 6.5 x 10 m². Precipitation during the same month was 380 mm and evaporation was 320 mm. Calculate the outflow from the lake for the same month in m/s.Problem 1: Water BalanceMeasurements of water-balance components have been made for a one-year period on a lake with an area of 0.8 km2 with the following results: P = 1400 mm, Qsi = 0.15 m3 s-1, and Qso = 0.17 m3 s-1. The lake-surface elevation, h, at the end of the year was 45 mm lower than at the beginning. What is the estimate (in mm) of the lake evaporation for that year?
- Estimate the constant rate of withdrawal from a 1375 ha reservoir in a month of 30 days during which the reservoir level dropped by 0.75 m in spite of an average inflow into the reservoir of 500,000 m 3 /day. During the month the average seepage loss from the reservoir was 2.5 cm, total precipitation on the reservoir was 18.5 cm and the total evaporation was 9.5 cm.Water at a constant rate of 370 cumecs was observed to be entering Tarbela Reservoir in a particular season. If outflow from the reservoir including infiltration and evaporation losses is 280 cumec, find out the change in reservoir storage for 10 such days. Also, convert your answer into Hectare-Meter.A total of 10 mm of rainfall fell on a lake with a surface area of T km^2 in June 1996. Relatedthe average flow rate of the stream entering the lake per month is 12 m^3 / s, while the average flow rate of the stream leaving the lake is7m^3/s dir. Monthly evaporation height measured in an evaporation pan near the lake during this month45mm and the pan coefficient in the relevant month is 0.75 according to what is the volume of water in the lake in this monthcalculate that it has changed up to?(T=159)
- A drainage basin has a area of 7322 km2. The average annual precipitation for this area is 909 mm. The average surface water flow at the outlet of the catchment is 21.4 x 108 m3/year and the average groundwater flow out of the basin is 94.6 mm/year. Assume trailing zeros are significant if present. Determine the annual average evaporation in mm/year. (give your answer to one decimal place)Measurements of a water-balance have been made for 1 year period on a lake with an area of 0.9 km2 with the following results: P = 1500 mm, Qsi = 0.16 m3s-1 and Qso = 0.18 m3s-1. At the end of the year, the lake surface elevation was 40 mm lower than at the beginning. Estimate the lake evaporation (in mm) for that year?2.The annual evaporation from a lake is 150 cm. If the lakes surface area is 16 km2, what is the daily evaporation rate in cm and in.? 3. The storage existing in a river reach at a given time is 13 acre-ft, and at same time, the inflow is 450 cfs and the outflow is 500 cfs. One hours later, the inflow is 500 cfs and the outflow is 530 cfs. Calculate the change in storage at the end of the hour in cubic meters, and determine the new storage.
- Following is the recorded data of a 0.8 km2 wide lake collected over a year: It receives a total rainfall of 1400 mm, the surface inflow and outflow is 0.15 m3/s and 0.17m3/s respectively. If the surface elevation of lake reduces by 45 mm over the year, then determine the lake evaporation (in mm).WATER RESOURCES ENGINEERING: Measurements of a water-balance have been made for a one-year period on a lake with an area of 0.8 km2 with the following results: P = 1400 mm, Qsi = 0.15 m3s-1 and Qso = 0.17m3s-1. The lake surface elevation, h, at the end of the year was 45mm lower than at the beginning. What is the estimate (in mm) of the lake evaporation for that year?Clear Lake has a surface area of 708,000 m2 (70.8 ha). For a given month the lake has an inflow of 1.5 m3/s and an outf1ow of 1.25 m3/s. A +1.0 -m storage change or increase in lake level was recorded. If a precipitation gage recorded a total of 24 cm for this month, determine the evaporation loss (in cm) for the lake. Assume that seepage loss is negligible.