Observed and urbanization-adjusted annual maximum peak discharge and associated urban fraction and precipitation values at USGS streamgage:
05549900 FOX RIVER TRIBUTARY NEAR CARY, IL

Observed annual peak-flood magnitudes were adjusted to 2010 land-use conditions on the basis of panel data regression model with fixed effect analysis. The symbols presented in the figure are: "observed annual peaks", "adjusted annual peaks", and "fraction of urbanization in the watershed"

Legend for Graph

Water year Segment Discharge code Cumulative reservoir storage (acre-feet) Urban fraction Precipitation (inches) Observed peak discharge (ft3/s) Adjusted peak discharge (ft3/s) Exceedance probability
1956 1 -- 0 0.770 0.364 4 6 0.977
1957 1 -- 0 0.815 2.162 31 36 0.022
1958 1 4B 0 0.860 0.006 3 4 1.000
1959 1 -- 0 0.905 0.757 22 24 0.107
1960 1 2 0 0.950 0.543 13 14 0.567
1961 1 2 0 0.950 0.821 8 9 0.926
1962 1 2 0 0.950 0.351 5 6 0.986
1963 1 4B 0 0.950 0.006 3 3 1.000
1964 1 -- 0 0.950 1.651 23 24 0.105
1965 1 -- 0 0.950 0.843 22 23 0.127
1966 1 2 0 0.950 0.358 10 11 0.803
1967 1 -- 0 0.950 0.006 6 7 0.971
1968 1 -- 0 0.950 1.223 25 26 0.073
1969 1 -- 0 0.950 0.793 23 24 0.105
1970 1 -- 0 0.950 0.762 45 47 0.011
1971 1 -- 0 0.950 0.905 26 27 0.063
1972 1 -- 0 0.950 1.063 59 61 0.003
1973 1 -- 0 0.950 0.716 5 6 0.986
1974 1 4B 0 0.950 0.006 3 3 1.000
1975 1 -- 0 0.950 0.806 9 10 0.869
1977 1 -- 0 0.950 0.210 3 3 1.000
1978 1 -- 0 0.950 2.040 28 29 0.047
1979 1 -- 0 0.950 1.160 3 4 1.000