SU Hydrology and hydraulics Question

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10 pts
1. Problem 4.14 (page 175): The annual peak discharges at USGS 01671100 Little River near Doswell,
VA are listed in the following table. Complete a flood frequency analysis using the:
(1) Station skew coefficient
(2) Weighted skew coefficient
30 pts
Year
Peak (cfs)
Year
Peak (cfs)
1961
4430
1988
1010
1962
1840
1989
2610
1963
850
1990
850
1964
730
1991
520
1965
790
1992
2990
1966
515
1993
3910
1967
1020
1994
1050
1968
12000
1995
2210
1969
880
1996
959
1970
1780
1997
3380
1971
8300
1998
466
1972
2290
1999
1040
1973
2610
2000
161
1974
4890
2001
2670
1975
2480
2002
1870
1976
1090
2003
1340
1977
4120
2004
873
1978
4120
2005
1880
1979
2000
2006
1010
1980
164
2007
528
1981
1490
2008
1380
1982
1360
2009
1900
1983
3470
2010
2560
1984
3240
2011
559
1985
2240
2012
3680
1986
2340
2013
1130
1987
1110
2014
1100
2
Year
1961
1962
1963
1964
1965
1966
1967
1968
1969
1970
1971
1972
1973
1974
1975
1976
1977
1978
1979
1980
1981
1982
1983
1984
1985
1986
1987
1988
1989
1990
1991
1992
1993
1994
1995
1996
1997
1998
1999
2000
2001
2002
2003
2004
2005
2006
Peak (cfs)
4430
1840
850
730
790
515
1020
12000
880
1780
8300
2290
2610
4890
2480
1090
4120
4120
2000
164
1490
1360
3470
3240
2240
2340
1110
1010
2610
850
520
2990
3910
1050
2210
959
3380
466
1040
161
2670
1870
1340
873
1880
1010
2007
2008
2009
2010
2011
2012
2013
2014
528
1380
1900
2560
559
3680
1130
1100

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