A catchment of area 120 km has three distinct zones as below: Zone Area (km²) Annual runoff (cm) A 61 52 B 39 42 C 20 32 The annual runoff from the catchment, is (а) 126.0 ст (b) 42.0 ст (c) 45.4 cm (d) 47.3 cm

A catchment of area 120 km has three distinct zones as below: Zone Area (km²) Annual runoff (cm) A 61 52 B 39 42 C 20 32 The annual runoff from the catchment, is (а) 126.0 ст (b) 42.0 ст (c) 45.4 cm (d) 47.3 cm

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

Watershed area = 11.1 acres Average N concentration of inflow = 1.9 mg/L Total Rainfall = 44.75 inches Average N concentration of outflow = 1.4 mg/L Total pond inflow = 330,441 ft3 Average P concentration of inflow = 0.42 mg/L Total pond outflow = 288,492 ft3 Average P concentration of outflow = 0.23 mg/L Total pond volume = 46,893 ft3 (this is the volume to the top of the riser before overflow occurs) Answer the following questions: a) What percentage of the total rainflow flowed into the pond? b) If the pond were completely empty, how much rainfall in inches would be required to fill it to the total pond volume? Use your answer to question A to help answer this. c) What is the total Nitrogen load flowing into the pond in lbs/Acre/Year? d) How many lbs of Nitrogen did the pond remove over the year? e) What percentage of Phosphorous was removed by the pond?
0 -index is 0.5 cm/h and the base flow at the outlet is The drainage area of a watershed is 50 km? T. d -index is 0.5 cm/h and the base flow at the outlet is 10 m3/s. One hour unit hydrograph (unit depth = 1 cm) of the watershed is triangular in shape with a time base of 15 h. The peak ordinate occurs at 5 h. The peak ordinate (in m /s/cm) of the unit hydrograph is 2 3
a drainage basin with an area of 5 km2 receives 25 mm ofrainfall. The losses due to interception and evaporation during the rainfall event amountis 5 mm. There is also some surface runoff. There is 2% of the rain falls directly falls intothe stream as channel precipitation. A very large part of the rainfall infiltrates into thesoil. The amount of 40000 m3 of volume of water discharges at the out let of thewatershed, where 75% of this amount is baseflow. What is the runoff coefficient (%)?Hint (Runoff coefficient is surface runoff/precipitation)
Balili Watershed is 2500 square kilometer in area and receives 1300mm of rainfall in a year, the average outflow of Balili River is 30 cubic meter per second. RC=Runoff/Precipitation Determine the runoff coefficient.
1. At a water elevation of 1947.9768 m., Kenyir Lake has a volume of 3, 625, 197, 720 cu. m., and a surface area, A of 194, 653, 773.6 sq.m. Annual inputs to the lake include 0.2032 m. of direct precipitation, runoff from gauged streams of 185, 022, 000 cu.m. per year, and ungauged runoff and groundwater inflow of 45, 638, 760 cu.m per year. Evaporation is 1.143 m. per year. Make a water budget showing inputs, km^3 per year.
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. Compute the runoff coefficient for the Sub A. Show complete Solution
6. Runoff from a 200 mile² catchment drains into a reservoir than has an average surface area of 4000 acres. The reservoir is to be used for municipal water supply. Annual rainfall over the watershed is 40 inches and the annual runoff is 2 inches. Evaporation from the reservoir averages 40 inches per year. If the surface area of the reservoir is roughly constant with depth, how much will the reservoir depth change in one year?
If the Kuils River has a catchment area of 200 square kilometres and receives in a year 600 mm/year of rainfall, and the runoff from this catchment is 100 mm/year. Assuming that there is no loss to or gain of water from subsurface storage, the amount of evaporation isA) 400 mm/year, B) 500 mm/year, C) 300 mm/year D) 900 mm/year
A lake data is as follow: the discharge into lake is 1.5m /s the out flow discharge is 3. 1.25m /s, evaporation rate is 23.3 cm/month and the total precipitation was 29.4 cm/month. The average depth in the lake on 1 June was 19m, the average depth on June 30th was 20 m. The surface area of the lake approximately is a. 49 ha b. 59 ha .C 89ha d. 69 ha
The table below shows the monthly data for the catchment area.a. Compute the annual catchment volume in km3b. Determine the month where the catchment volume is the highest.c. What is the highest monthly catchment volume in km3.
2 %V9 li. 3 (9 This question requires one response per row The base flow for this direct runoff hydrograph is: 0 4 8h o Index = 0.135 cm/h Rainfall excess = 5.52 cm 30 25 20 15 Direct runoff 5.52 cm 10 A Base flow -6 0 12 18 24 30 36 42 48 54 60 66 Time in hours -6 8 5.52 48 Discharge (m/s) 3.26 cm 2.26cm