For the given peak flow data, peform a frequency analysis by the theoretical method adopting the lognormal distribution.Determine:a. magnitude of a flood having a return period of 100 years ( probability of 1 %).b. probability of a flow of 100 cfs. Peak-Peak-Peak-Peak-flowflowflowflowYearcfsYearcfsYearcfsYearcfs196577501978979199138802003869019665440197949401992211020043410196735801980426019938270200521901968526019819400199457402006444019694000198295301995414020074070197088001983233019963910200814001997Jano1998197170701984990130020093290197275201985940012400201075801973699019863740199947202011464019745570198732502000325020123190197527101988292020014810201310800197621901989383020023060201425001990143019772250

Given- Return Period=100 yearsFlow=100 cfs

or the given peak flow data, peform a frequency analysis by the theoretical method adopting the lognormal distribution. Determine: a. magnitude of a flood having a return period of 100 years ( probability of 1 %). b. probability of a flow of 100 cfs.

or the given peak flow data, peform a frequency analysis by the theoretical method adopting the lognormal distribution. Determine: a. magnitude of a flood having a return period of 100 years ( probability of 1 %). b. probability of a flow of 100 cfs.

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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Concept explainers

Probability, risk and uncertainty analysis for hydrological design

It gives a framework that is financially critical for finding the exceptional designs of hydrological systems with a reduced cost in total inclusive of the project cost and the disaster mitigation cost. But there would be hardly any assessment of a decent quality damage function. Hence, errors in demonstrating the hydrologic events, incorrect model parameters, and so on may occur. Here, we will discuss a specific hydrological design that of a detention basin for studying and understanding the risk-based procedure, uncertainties, and probability analysis by following a systematic framework.

Question

For the given peak flow data, peform a frequency analysis by the theoretical method adopting the lognormal distribution.

Determine:

a. magnitude of a flood having a return period of 100 years ( probability of 1 %).

b. probability of a flow of 100 cfs.

Peak-
Peak-
Peak-
Peak-
flow
flow
flow
flow
Year
cfs
Year
cfs
Year
cfs
Year
cfs
1965
7750
1978
979
1991
3880
2003
8690
1966
5440
1979
4940
1992
2110
2004
3410
1967
3580
1980
4260
1993
8270
2005
2190
1968
5260
1981
9400
1994
5740
2006
4440
1969
4000
1982
9530
1995
4140
2007
4070
1970
8800
1983
2330
1996
3910
2008
1400
1997
Jano
1998
1971
7070
1984
990
1300
2009
3290
1972
7520
1985
9400
12400
2010
7580
1973
6990
1986
3740
1999
4720
2011
4640
1974
5570
1987
3250
2000
3250
2012
3190
1975
2710
1988
2920
2001
4810
2013
10800
1976
2190
1989
3830
2002
3060
2014
2500
1990
1430
1977
2250

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