The annual peak flow rates in a river between 1980 and 1996 are as follows:YearPeak flow(ft³/s)198991931990 51421991 78841992 413219931213619945129199572361996 6222Year Peak flow(ft³/s)1980 80001981 55501982 33901983 63901984 58891985 71821986 105841987115861988 8293Use Gringorten formula (GEV distribution) (a = 0.40) to estimate peak flow rate for a 20-yearreturn period.

Annual peak flow rates in a river between 1980 and 1996:YearPeak flow,…

The annual peak flow rates in a river between 1980 and 1996 are as follows: Year Peak flow Year Peak flow (ft³/s) 1980 8000 1981 5550 1982 3390 1983 6390 1984 5889 1985 7182 1986 10584 1987 11586 1988 8293 (ft³/s) 1989 9193 1990 5142 1991 7884 1992 4132 1993 12136 1994 5129 1995 7236 1996 6222 Use Gringorten formula (GEV distribution) (a = 0.40) to estimate peak flow rate for a 20-year return period.

The annual peak flow rates in a river between 1980 and 1996 are as follows: Year Peak flow Year Peak flow (ft³/s) 1980 8000 1981 5550 1982 3390 1983 6390 1984 5889 1985 7182 1986 10584 1987 11586 1988 8293 (ft³/s) 1989 9193 1990 5142 1991 7884 1992 4132 1993 12136 1994 5129 1995 7236 1996 6222 Use Gringorten formula (GEV distribution) (a = 0.40) to estimate peak flow rate for a 20-year return period.

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

Unit Hydrograph

Hydrology is the science which deals with the study of water on the earth’s surface. The word Hydrograph is derived from the word hydro which means water. Hydrograph is basically a graph in which the discharge is plotted against the time interval at a specific point in a river or other channel. In a hydrograph, the discharge is plotted along the y-axis and time interval is plotted along the x-axis. Hydrograph is used to estimate the runoff. The variations in discharges with the change in time is shown by a hydrograph. It was revealed that the total discharge at an outlet increases with time by a kinematic wave model.

Question

The annual peak flow rates in a river between 1980 and 1996 are as follows:
Year
Peak flow
(ft³/s)
1989
9193
1990 5142
1991 7884
1992 4132
1993
12136
1994
5129
1995
7236
1996 6222
Year Peak flow
(ft³/s)
1980 8000
1981 5550
1982 3390
1983 6390
1984 5889
1985 7182
1986 10584
1987
11586
1988 8293
Use Gringorten formula (GEV distribution) (a = 0.40) to estimate peak flow rate for a 20-year
return period.

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