Question

QUESTION 2 a. The record of annual rainfall at station A covering a period of I1 years is given below in Table 1 TABLE 1: Annual rainfall record Year Annual rainfall (em) 1960 130 1961 84u 1962 76 v 1963 89 v 112 1964 1965 96/ 1966 1967 80v 125 1968 143 89 1969 1970 78J Estimate the annual rainfall with return periods (ARI) of 5 years by interpolation method (Hint: Use Annual series method to find corresponding AEP and ARI), and then interpolate using appropriate values (i) Final Examination Semester Hydraulic Engineering I 1 Estimate the annual rainfall with return periods (ARI) of 10 years if the relationship of Annual rainfall and AEP is given by the equation (ii) y26.01In (x) +75.497

Answer 1

Questiou Co Solutiou Siven dat A period N= (| a usingprababili uing uoelbull Now we P- (N4 Rauk lrpexiod T)= amouge gieHeble desceudiuq des to tRe vatal ue Noro we Yaing ore S oble CaladDions LAe shoro To aboue uig balous table Ihe

Pеwрнаи Raulk коPh Roulal Perioa т.p 1968 12 .O833 (960 130 1Ь67 3 196 25 o2S00 1961p 12 * 3333 2.P 96. 5 465 2 0.Sc0o 1963 89 05833 1969 о-666t &н 1961 1-33 80 1966 о-8333 110 10 В (о оо

to etiuk auuuvoi all Nlas have Years sidRveturn peiods CARI) of upexiod of Row aboue table, fo oiu li CaljSed awua IRCowe padiug year s wing polaliok T 6Yeors - 130can ralu All 125 au Now T: 5 years 130+125 He anurall 2 atralal| 255 2 auro have to erlwae Now un piods CARI) of 10 AEP reaondp giuen bqaio T: lo YeaM.

T As AEP 26.0no)+ 35. 497 Noco ~2:30 - T5, P9 26.01 X 59.823 t5 ュ 135 32 C