During a month a lake with area = 3 duname., received 16 cm precipitation, and there was an infiltration 23 mm from the lake, what is the depression in storage?(by m^3)
Q: Problem 2. The evaporation losses from a reservoir of constant surface area of 500 hectares are 250…
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Q: Water Resource
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Q: Give the average daily evaporation in mm/day from the lake by using Meyer’s Formula
A: HYDROLOGY:
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Q: In a month of 30 days, the water level of a 1375-ha reservoir dropped by 0.75m in spite of an…
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Q: 1. A reservoir with a surface area of 300 ha had the following average values of parameters during…
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Q: 30
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- Q2: At the beginning of a given day a reservoir has a surface area 30 km². The inflow to the reservoir during the day was measured to be 65 m³/s. In addition, the day was dry and the seepage is 5% of the inflow. Assume the area of the reservoir does not change significantly by the end of the day. Determine the reservoir evaporation in mm/day where the reservoirs level is decreased 3.5 cm and the pan coefficient is 0.8?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 Mm^3/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.Civil Engineering Hydrology A certain lake has a surface of 708,000 sq m. For a given month ( assumed 30 days ) the lake has an inflow of 1.5 m² /s and an outflow of 1.25 m/s and a storage change of +690,000 m and was recorded. If a precipitation gage recorded a total of 22.5 cm for this month ,determine the evaporation loss in cm for the lake .Assume seepage loss is negligible
- 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 catchment has four sub-areas. The annual precipitation and evaporation from each of the sub-areas are given below. Assume that there is no change in the groundwater storage on an annual basis and calcu- late for the whole catchment the values of annual averz ge Sub-area Area Annual precipitation Annual evaporation Mm? mm mm 10.7 1030 530 3.0 830 438 8.2 900 430 17.0 1300 600 A) 0.581 B) 0.158 C) 0.518 D) 0.851 ABCD © O O OThe catchment area of an irrigation reservoir is 60 km^2. The constant water spread during October 2006 was 2 km^2. During that month, the uniform precipitation over the catchment was recorded to be 100 mm, 50% of precipitation reaches the reservoir. Outflow at a constant rate of 1 m^3/sec was recorded in the month of October. Assuming seepage losses to be 50% of the evaporation losses. Find out the daily rate of evaporation (mm/day/m*2) for October 2006. (Note: The number of days in the month of October is 31 days) ≈3.441 mm/day/m*2 ≈8.825 mm/day/m*2 4.344 mm/day/m*2 ≈6.445 mm/day/m*2
- 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. (answer must be in m^3/s with step by step solution)Problem 2 A reservoir with a surface area of 274 hectares had the following average values of parameters during a week. Water Temperature = 25*C Relative Humidity = 35% Wind velocity at 6.0 meters above the ground = 17 km/hour Estimate the average daily evaporation from the lake and the volume of water evaporated from the lake during the week.Mangla Lake had a water surface level of 650 m above a datum at the beginning of a certain month. In that month the lake received an average inflow of 250 cumecs. There was an outflow of 150 cumecs. In the same month, the lake received a rainfall of 150 mm and the evaporation from the lake surface was 5 cm. Using the hydrologic equation, estimate the water surface elevation of the lake at the end of the month. Assume the lake surface area as 450 hectares and that there was no contribution to or from the groundwater storage.
- The basin area has 8000 m^2, annual precipitation = 20 in/yr, annual streamflow = 5000 cfs. Use water budget method to estimate the annual evaporation.A catchment has 4 sub areas (see table below). The annual precipitation andevaporation from each of the sub areas are given below. Assume that there is no change inthe groundwater storage on annual basis and calculate for the whole catchment the valuesof annual averageA. Precipitation (Ans. P ave = 1105.167 mm)B. Evaporation (Ans. E ave = 532.416 mm)C. What are the annual run-off coefficients for the subareas and for the totalcatchment area as a whole? (Ans.ratio = 0.508)A reservoir had an average surface area of 20 km² during September 2008. In that month, the mean rate of inflow is 10 m³/s, outflow is 15 m³/s, monthly rainfall is 10 cm and change in storage is 16 Mm³. Assuming the seepage losses to be 1.8 cm, estimate the evaporation in that month.