In: Civil Engineering
Question 3:
Use the annual flood data (annual maximum series) in the table below to perform a flood frequency analysis using the U.S. Water Resources Council Guidelines. The map skew for this location is - 0.2
|
Year |
Discharge (cfs) |
Year |
Discharge (cfs) |
|
1935 |
1955 |
1955 |
2260 |
|
1936 |
4050 |
1956 |
318 |
|
1937 |
3570 |
1957 |
1330 |
|
1938 |
2060 |
1958 |
970 |
|
1939 |
1300 |
1959 |
1920 |
|
1940 |
1390 |
1960 |
15100 |
|
1941 |
1720 |
1961 |
2870 |
|
1942 |
6280 |
1962 |
20600 |
|
1943 |
1360 |
1963 |
3810 |
|
1944 |
7440 |
1964 |
726 |
|
1945 |
5320 |
1965 |
7500 |
|
1946 |
1400 |
1966 |
7170 |
|
1947 |
3240 |
1967 |
2000 |
|
1948 |
2710 |
1968 |
829 |
|
1949 |
4520 |
1969 |
17300 |
|
1950 |
4840 |
1970 |
4740 |
|
1951 |
8320 |
1971 |
13400 |
|
1952 |
13900 |
1972 |
2940 |
|
1953 |
71500 |
1973 |
5660 |
|
1954 |
6250 |
||
Fill out the following table
|
Exceedance probability |
T |
K(T, Gs) |
log QT |
QT |
|
Year |
(cfs) |
|||
|
0.99 |
||||
|
0.95 |
||||
|
0.90 |
||||
|
0.8 |
||||
|
0.5 |
||||
|
0.2 |
||||
|
0.1 |
||||
|
0.04 |
||||
|
0.02 |
||||
|
0.01 |
||||
|
0.005 |