2.13 Following are the data of a storm as recorded in a self-recording rain gauge at a station:Time from the beginning 10| of storm (minutes)20304050 60708090Cumulative rainfall 1941486891124152160166(mm)(a) Plot the hyetograph of the storm.(b) Plot the maximum intensity-duration curve of the storm.

Self-recording rain gauge Rain gauges for continuous recording are used to produce a daily or weekly…

Answered: 2.13 Following are the data of a storm…

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

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2) Construct a rainfall hyetograph (rainfall intensity, in mm/hr, versus time, in minutes) if the total rain in Question 1 above has the following temporal distribution (Table 1). Sketch the hyetograph. Table 1: Temporal Distribution Time (min) 0-5 5-10 10-15 15-20 20-25 25-30 % rainfall per period 12.5 12.5 38 13.5 13.5 10
C- For table below the Annual precipitation at station (x) and the annual precipitation at 10 stations. cumulative (cm) Annual preciption (cm) Sta. X Adjustment (cm) year 10 Sta. 2000 16 11 2001 14 9 2002 15 10 2003 4 12 2004 2 8 a) Examine the consistency of data at station ( x) data. b) When did a change in regime occur ? c) Adjust the data of station X after change?
Q2 (b) A 240-minute storm is recorded with the mass curve in Table Q2-2. (i) Calculate the incremental depth of rainfall in the interval and intensity. (ii) Draw the hyetograph of the storm at 30-minute interval with graph paper in Appendix 1. (iii) Calculate the maximum intensity-duration.
The precipitation heights recorded with a printed precipitation scale during successive time intervals during a rainstorm are given in the table below. Accordingly, plot the duration-intensity (connection) graph of this precipitation event.
Determine average precipitation using arithmetic mean method
Q2: The table below represents the vertical coordinates of the hydrograph of a rainstorm over a mountainous area of 770 km2 as a result of a 6 hour rainstorm. Derive the vertical coordinates of a 6 hour standard hydrograph and then determine: 1- The value of the vertical coordinate for 6 hours of a standard hydrograph at a time of 18 hours. 2-The value of the vertical coordinate of 6 hours standard hydrograph at the time of 36 hours 3-The value of the vertical coordinate of 6 hours of st and ard hydrograph at the time of 66 hours the time 72 66 60 54 48 42 36 30 24 18 12 60 (hour) discharge 42 50 70 100 145 205 270 350 400 360 215 65 40 (m3/s) flow 42 42 42 42 41 baseband 41 41 40 40 40 40 40 40 40 (m3/s)
Problem 2. A storm had 3 successive 6-hr intervals of rainfall magnitude of 3.0, 5.0 and 4.0 cm, respectively. Time from the beginning 0 3 6 9 12 18 24 30 36 48 54 60 66 42 of the storm (hr) 6-hr UH ordinates (cumecs) 0 150 250 450 600 800 700 600 450 320 200 100 50 0 a. Plot the resulting DRH due to 3 rainfall events, assuming a phi-index of 0.20 cm/hr. • Recall that the phi-index represents the rate of infiltration. • The hydrograph plots RUNOFF rates, where runoff = precipitation - losses. Note that the rainfall magnitude is reported as total rainfall depth in 6 hrs, so convert infiltration as a total for every 6 hr period. b. Assuming a baseflow of 30 m3/s, what are the ordinates of the storm hydrograph?
Hyetograph is the relation between? a. Sum of direct and base flow with time b. Precipitation with time c. Effective precipitation with time d. Net and effective precipitation What correct answer?
Q1) During a storm , the hourly rainfall data observed was as follows: Time (hrs) Rainfall (mm) 0 1 2 3 4 5 6 78 9 0 25 20 45 30 10 0 15 10 0 Calculate and plot the following: 1) Hyetograph 2) Mass Curve.
Estimate the missing precipitation data at station D with the given data in the table below. Give your answer to the nearest hundredths. Problem 2 Annual Precipitation Monthly Precipitation (mm) Gage (mm) A 420 26 В 370 23 C 470 32 400 ? 380 21

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