Observed and urbanization-adjusted annual maximum peak discharge and associated urban fraction and precipitation values at USGS streamgage:
05551520 INDIAN CREEK NEAR NORTH AURORA, 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
1961 1 -- 0 0.091 1.696 158 222 0.226
1962 1 -- 0 0.096 0.379 125 182 0.378
1963 1 -- 0 0.101 1.876 58 95 0.828
1964 1 -- 0 0.106 2.703 84 127 0.662
1965 1 -- 0 0.111 0.139 65 103 0.791
1966 1 -- 0 0.116 2.300 262 349 0.057
1967 1 -- 0 0.121 2.505 224 301 0.090
1968 1 -- 0 0.126 1.316 88 130 0.649
1969 1 -- 0 0.131 1.698 171 231 0.201
1970 1 -- 0 0.136 1.565 84 124 0.683
1971 1 -- 0 0.137 0.384 80 118 0.712
1972 1 -- 0 0.139 6.066 224 296 0.094
1973 1 -- 0 0.140 1.211 92 133 0.633
1974 1 -- 0 0.141 1.402 216 286 0.108
1975 1 -- 0 0.143 1.791 188 250 0.166
1976 1 -- 0 0.144 1.156 118 166 0.456
1977 1 -- 0 0.146 1.490 40 67 0.929
1978 1 -- 0 0.147 5.213 402 505 0.017
1979 1 -- 0 0.148 0.544 227 298 0.093