PROBLEMS 2.2.1 A reservoit has the foliowing inflows and outflows (in cubic meters) for the first three months of the year. If the storage at the beginning of January is 60 m'. determine the storage at the end of March. Month Jan Feb Mar Inflow 4 6 9 Outlow 8 5 2.2.2 Compute the constant draft from a 500-hectare reservoir for a 30-day period during which the reservoir level dropped half a meter despite an average upstream inflow of 200,000 m'/day. During the period, the total seepage loss was 2 cm, the total precipitation was 10.5 cm, and the total evaporation was 8.5 cm. (1 hectare = 10 m²). 2.2.3 Solve Prob. 2.2.2 if the reservoir area is 1200 acres, the drop in level 2 ft, the inflow 25 ft'/s, the seepage loss I in, the precipitation 4 in and the evaporation 3 in (1 acre = 43,560 ft).

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Hi, I've already had some questions that I searched here and they were wrong. I ask that you do these questions from Chapter 2 - Applied Hydrology - autor: Ven Te Chow

PROBLEMS
2.2.1 A reservoir has the folowing inflows and outflows (in cubic meters) for the first
three months of the year. If the storage at the beginning of January is 60 m'.
determine the storage at the end of March.
Month
Jan
Feb
Mar
Inflow
4
6 9
Outtlow
5
2.2.2
Compute the constant draft from a 500-hectare reservoir for a 30-day period
during which the reservoir level dropped half a meter despite an average upstream
inflow of 200,000 m'/day. During the period, the total seepage loss was 2 cm,
the total precipitation was 10.5 cm, and the total evaporation was 8.5 cm. (1
hectare = 10 m²).
Solve Prob. 2.2.2 if the reservoir area is 1200 acres, the drop in level 2 ft, the
inflow 25 fr/s, the seepage loss I in, the precipitation 4 in and the evaporation
3 in (1 acre = 43,560 ft-).
From the hydrologic records of over 50 years on a drainage basin of area 500
km?, the average annual rainfall is estimated as 90 cm and the average annual
runoff as 33 cm. A reservoir in the basin, having an average surface area of 1700
hectares, is planned at the basin outlet to collect available runoff for supplying
water to a nearby community. The annual evaporation over the reservoir surface
is estimated as 130 cm. There is no groundwater leakage or inflow to the basin.
Determine the available average annual withdrawal from the reservoir for water
supply.
Solve Prob. 2.2.4 if the drainage basin area is 200 mi?, annual rainfall 35 in?,
runoff 13 in, reservoir area 4200 acres, and evaporation 50 in.
The consecutive monthly flows into and out of a reservoir in a given year are the
following, in relative units:
2.2.3
2.2.4
2.2.5
2.2.6
Transcribed Image Text:PROBLEMS 2.2.1 A reservoir has the folowing inflows and outflows (in cubic meters) for the first three months of the year. If the storage at the beginning of January is 60 m'. determine the storage at the end of March. Month Jan Feb Mar Inflow 4 6 9 Outtlow 5 2.2.2 Compute the constant draft from a 500-hectare reservoir for a 30-day period during which the reservoir level dropped half a meter despite an average upstream inflow of 200,000 m'/day. During the period, the total seepage loss was 2 cm, the total precipitation was 10.5 cm, and the total evaporation was 8.5 cm. (1 hectare = 10 m²). Solve Prob. 2.2.2 if the reservoir area is 1200 acres, the drop in level 2 ft, the inflow 25 fr/s, the seepage loss I in, the precipitation 4 in and the evaporation 3 in (1 acre = 43,560 ft-). From the hydrologic records of over 50 years on a drainage basin of area 500 km?, the average annual rainfall is estimated as 90 cm and the average annual runoff as 33 cm. A reservoir in the basin, having an average surface area of 1700 hectares, is planned at the basin outlet to collect available runoff for supplying water to a nearby community. The annual evaporation over the reservoir surface is estimated as 130 cm. There is no groundwater leakage or inflow to the basin. Determine the available average annual withdrawal from the reservoir for water supply. Solve Prob. 2.2.4 if the drainage basin area is 200 mi?, annual rainfall 35 in?, runoff 13 in, reservoir area 4200 acres, and evaporation 50 in. The consecutive monthly flows into and out of a reservoir in a given year are the following, in relative units: 2.2.3 2.2.4 2.2.5 2.2.6
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