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?

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?

Fundamentals of Geotechnical Engineering (MindTap Course List)

5th Edition

ISBN:9781305635180

Author:Braja M. Das, Nagaratnam Sivakugan

Publisher:Braja M. Das, Nagaratnam Sivakugan

Chapter8: Stresses In A Soil Mass

Section: Chapter Questions

Problem 8.14P

See similar textbooks

Similar questions

A reservoir with a surface area of 250 hectares had the following average values of climate parameters during a week: Water temperature = 38°C, Relative humidity = 36%, Wind velocity at 3.0 m above ground surface = 20 kph. Consider shallow water, estimate the average daily evaporation from the lake by using Meyer’s Formula. (in mm/day). Show complete solution
A reservoir with as surface area of 300 hectares had the following average values of climate parameters during a week: • Water temperature = 36°C • Relative humidity = 30% • Wind velocity at 1.0 m above ground surface = 20 km/h Estimate the average daily evaporation from the lake by using Meyer’s Formula. ?? = ?? (?? − ??)( ? + ?? /??) ?? = coefficient accounting for various other factors 0.36 for large deep waters 0.50 for small, shallow water ?? = ? (? ^? /?)
A small shallow reservoir has a surface area of 150 square meters is used to estimate the average daily evaporation. The average values of climate parameters during a week are the following: water temperature is 34 degrees Celsuis, relative humidity of 0.3, wind velocity at 1.0 meter above ground surface is 4.444 m/s. Use the Meyer's formula to get the average daily evaporation. Also, compute the total volume of water lost due to evaporation daily.
Q2) At a reservoir, the following climatic data were observed. Estimate the mean monthly evaporation depth and the total monthly volume of evaporation from the reservoir using Rohwer’s formula if the surface area of the reservoir is 3000 ha.
- A reservoir with a surface area of 250 hectares had the following average values of climate parameters during a week: Water temperature = 20˚C, Relative humidity = 40%, Wind velocity at 1.0 m above ground surface = 16 km/h. Estimate the average daily evaporation from the lake by using Meyer's formula.
Using Meyer's formula estimate the average daily evaporation from the following data; bA reservoir with a surface area 300 hectares, Water temperature=24 degree C, Relative Humidity= 30%, wind velocity at 9m, above ground = 21.658km/h
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.
At a reservoir, the following climatic data were observed. Estimate the mean monthly evaporation depth and the total monthly volume of evaporation from the reservoir using Rohwer’s formula if the surface area of the reservoir is 3000 ha. can help me and just i know the sourse this question please
In a month of 30 days, the water level of a 1375-ha reservoir dropped by 0.75m in spite of an average inflow reservoir of 0.5 cu. Mm/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. 1. Estimate the constant rate of withdrawal from the reservoir in m3/sec.
A reservoir with a constant surface area of 5.8 km has an elevation of 207.6 m above (mean sea level) MSL at the beginning of the week.Meteorological measurements made at reservoir for the week indicate that the total precipitation accumulation was 101.6 mm and the total evaporation was 72.2 mm. Also, hydrologic measurements made at reservoir indicate that the average river inflow rate is 34.0 m3/s, and the average outflow rate is 26.6 m'/s. Estimate the lake elevation (in m above MSL) at the end of the week.
A reservoir with as surface area of 300 hectares had the following average values of climate parameters during a week: Water temperature = 36°C Relative humidity = 30% Wind velocity at 1.0 m above ground surface = 20 km/h Estimate the average daily evaporation from the lake by using Meyer’s Formula.
A reservoir with a surface area of 320 hectares had the following average values of climate parameters during a week: Water Temperature = 25⁰C; Relative Humidity = 40%; Wind velocity at 1m above the ground surface = 18 km/h. Give the average daily evaporation in mm/day from the lake by using Meyer’s Formula.