Observed and urbanization-adjusted annual maximum peak discharge and associated urban fraction and precipitation values at USGS streamgage:
05551530 INDIAN CREEK AT 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 0.223 1.760 436 773 0.420
1962 1 -- 0 0.231 0.393 270 529 0.752
1963 1 -- 0 0.239 1.981 507 854 0.324
1964 1 -- 0 0.248 2.871 433 752 0.446
1965 1 -- 0 0.256 0.140 375 661 0.566
1966 1 -- 0 0.265 2.477 658 1030 0.180
1967 1 -- 0 0.273 2.720 694 1080 0.161
1968 1 -- 0 0.282 1.393 478 791 0.398
1969 1 -- 0 0.290 2.127 377 643 0.592
1970 1 -- 0 0.299 1.588 575 897 0.278
1971 1 -- 0 0.306 0.163 486 785 0.406
1972 1 -- 0 0.313 6.785 742 1110 0.148
1973 1 -- 0 0.320 1.347 511 807 0.380
1974 1 -- 0 0.327 1.434 647 964 0.219
1975 1 -- 0 0.335 1.933 596 897 0.277
1976 1 -- 0 0.342 0.005 592 887 0.287
1977 1 -- 0 0.349 0.658 316 530 0.749
1978 1 -- 0 0.356 5.819 744 1070 0.165
1979 1 -- 0 0.363 0.527 696 998 0.196