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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
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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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
Transcribed Image Text: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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