The average water spread areas that are likely to be maintained in a reservoir and the observed monthly pan evaporations at the reservoir site are given below: Average Water Spread Area Average Water Spread Area [hectares] [hectares] 872.0 735.0 797.0 765.0 754.5 807.5 739.5 850.0 726.0 891.0 717.5 917.0 a) Estimate the annual evaporation loss from the reservoir in million m³. (Assume a pan coefficient of 0.70). Month January February March April May June Pan evaporation [cm] 10.2 15.3 17.8 25.4 30.5 28.0 Month July August September October November December Pan evaporation [cm] 18.7 16.5 15.3 14.0 12.7 10.2 b) If 50% of this loss can be prevented and the saved water is used to irrigate a crop that needs 57 cm of water per a year, how much area in hectares can be irrigated?

The average water spread areas that are likely to be maintained in a reservoir and the observed monthly pan evaporations at the reservoir site are given below: Average Water Spread Area Average Water Spread Area [hectares] [hectares] 872.0 735.0 797.0 765.0 754.5 807.5 739.5 850.0 726.0 891.0 717.5 917.0 a) Estimate the annual evaporation loss from the reservoir in million m³. (Assume a pan coefficient of 0.70). Month January February March April May June Pan evaporation [cm] 10.2 15.3 17.8 25.4 30.5 28.0 Month July August September October November December Pan evaporation [cm] 18.7 16.5 15.3 14.0 12.7 10.2 b) If 50% of this loss can be prevented and the saved water is used to irrigate a crop that needs 57 cm of water per a year, how much area in hectares can be irrigated?

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

See similar textbooks

Similar questions

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)
Hydrology: i need the answer quickly i need all the steps, i need the answer in Handwritten.
9
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 O
Question 02 A lake had a water surface elevation of 9536/78 m above datum at the beginning of a certain month. In that month the lake received an average inflow of 6.0 m³/s from surface runoff sources. In the same period the outflow from the lake had an average value of 6.5 m³/s. Further, in that month, the lake received a rainfall of 9536/10 mm and the evaporation from the lake surface was estimated as 9536/1000 cm. Write the water budget equation for the lake and calculate the water surface elevation of the lake at the end of the month. The average lake surface area can be taken as 9536 ha. Assume that there is no contribution to or from the groundwater storage.
hydrology engineering
Compute the mean precipitation for the catchment shown by Isohyetal Method. (Tabulate your solution) * Ce 62 cm 33 60 cm FO 86 cm -100 cm 50 cm B. 63 92 cm 75 cm 20 cm 278 389 68 cm 220 O Rain gauge stations Areas are in km2 55 45 cm 25 cm 50 cm 75 cm
Q#3: {10} The following are the monthly evaporation data in cm in a certain year (Jan.-Dec.) in the vicinity of a lake: 18.7 16.1 19.9 27.0 29.5 24.4 19.7 19.2 20.2 22.5 18.7 17.4 The water spread area in the lake in the beginning of January was (2.0 +123) square kilometer and at the end of December was (1.6+123) square kilometer. Calculate the loss of water in million cubic meter due to evaporation in that year.
33
What is the Duration of Effective Rainfall (Duration of the Unit Hydrograph)?
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
QUESTION 3 10 A storm with 10 cm precipitation produced a direct surface runoff of 5.8 cm in the equivalent depth unit. The time distribution of the storm is given in Table below. Estimate the @-index of the storm and the excess rainfall hyetograph. Time from start (hr) Incremental 0.4 rainfall in each hr (cm) 4 6. 0.9 1.5. 3.3 T.7 1.6 1.0 0.5