2. The surface area of a reservoir is 17.2 square miles and is underlain by impervious strata. In August the average surface flow out was 3,190 cfs. No rainfall and evaporation of 4.8 inches were recorded for the month and the storage volume decreased by 142,000 acre- feet. (a) Write out the surface water hydrologic budget for the reservoir explaining why you neglect any terms. (b) Estimate the flow into the lake in acre-feet and cfs.

Q: Question:- Estimate the 7-day low flow with 50 year return period for ungauged abstraction point at…

A: Given:- The cross-sectional area of the catchment = 1750 km2  The time period = 7-day low flow with…

Q: Problem 2. The evaporation losses from a reservoir of constant surface area of 500 hectares are 250…

A: Given data: Surface Area of reservoir = 500 hectares. Evaporation loss = 250 acre-ft per day. Out…

Q: The following data was collected during a 5-hour storm event in the study watershed. The baseflow…

A: Given: Baseflow = 35 m3/s

Q: The 10-minute triangular unit hydrograph for a watershed has a peak discharge of 100 ft’/s at 40…

A: 10-minute triangular unit hydrograph peak discharge(Q)=100 ft3/s (occur at 40 minutes) Total…

Q: stream with a flowrate of 10 m3/min and an MTBE concentration of 5 g/m3 flows into the first…

A: Inflow rate = Inflow concentration = Reservoir volume (V) = Time (t) = 1 hour = 60 minutes

Q: The long-term average annual precipitation (P) over a reservoir (surface area = 186 mi²) is 40…

A: (1) The long term average annual precipitation( P) over a reservoir is(2) Surface area…

Q: An aquifer has a surface area of 1000 m2. If the amount of pumping from the aquifer is 1 (m3/yr),…

A: Note: there is error in unit of pumping amount  consider unit as m/yearPumping amount  P=1…

Q: For a given month a 100 acre lake has 10 cfs. of inflow , 8 cfs outflow total storage increase of 20…

A: Given DataArea of lake =100 acre=627264000 inches2inflow=10cfs=17280 in3/soutflow=13824 in3/sstorage…

Q: A small watershed has an area of 3 km². The slope of the catchment is 1/150 and the maximum length…

A:

Q: For a given year, a 400 − acre lake has 1.40 ft3/s of inflow, 16.8 inches of precipitation, 23.25…

A: Given that:                    Area of lake, A=400 acreInflow in lake, I = 1.40 ft3/sTotal…

Q: In a stream the base flow is observed to be 30 cumec on July 14, and 23 cumec on July 23. Estimate…

A:

Q: A 2000 mi² drainage basin receives 20 in/year rainfall. The evapotranspiration (ET) loss for the…

A: Given : Area of drainage basin = 2000 m2 Yearly rainfall = 20 in/year Evapotranspiration Loss = 1.5…

Q: A reservoir has average surface area of 20km². Mean rate of inflow is 10 m²/S mean outflow is 15…

A:

Q: H.W: The drainage area of a river in a city is 12000 km2. If the mean annual runoff is determined to…

A: Given Area of river=12000km2 Mean annual runoff=140 m3/s Average annual runoff= 1m

Q: A reservoir with a surface area of 180 hectares had the following average values of parameters…

A: Given Values: Surface Area= 180 hectares Water Temperature=20.5oC Relative Humidity=75% Wind…

Q: 1. The evaporation losses from a reservoir with a surface area of 500 acres are 150 Ac-ft per day.…

A:

Q: Long Pond has a surface area of 3.5 km2, and for a given month the pond has an average inflow of 3.4…

A: Given data the surface area of 3.5 km2=3.5x106 m2 inflow= 3.4 m3/s outflow = 2.75 m3/s storage…

Q: A lake with an area of 5 km² has a net decrease in storage of 6 ha-mm. The inflowing stream rate is…

A: Given data- Area of the Lake (A)=5 Km2=5000 m2Change in storage ∆S=6 ha-mm=6×10000 m2-mm=6×10000…

Q: The following data was collected during a 5-hour storm. If the base flow for the stream is 35 m?/s,…

A: Given: Base flow = 35 m3/s   Also, Let area of basin = 2 km2