Observed and urbanization-adjusted annual maximum peak discharge and associated urban fraction and precipitation values at USGS streamgage:
05539870 WEST BRANCH DU PAGE RIVER AT ONTARIOVILLE, IL
![graph 05539870 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"](new_appendix_figures/sir20165050_05539870.fe_qr_only.jpg)
![Legend Legend for Graph](new_appendix_figures/sir20165050_fe_qr_only.legend_only.revised.jpg)
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 | 0.387 | 0.945 | 212 | 402 | 0.563 |
1962 | 1 | -- | 0 | 0.429 | 0.197 | 138 | 288 | 0.843 |
1963 | 1 | -- | 0 | 0.471 | 0.874 | 100 | 228 | 0.941 |
1964 | 1 | -- | 0 | 0.513 | 1.269 | 147 | 278 | 0.867 |
1965 | 1 | -- | 0 | 0.555 | 0.094 | 88 | 187 | 0.969 |
1966 | 1 | -- | 0 | 0.598 | 0.931 | 295 | 435 | 0.487 |
1967 | 1 | -- | 0 | 0.640 | 0.866 | 542 | 714 | 0.100 |
1968 | 1 | -- | 0 | 0.682 | 1.127 | 535 | 680 | 0.124 |
1969 | 1 | -- | 0 | 0.724 | 0.973 | 238 | 319 | 0.775 |
1970 | 1 | -- | 0 | 0.766 | 1.073 | 400 | 484 | 0.375 |
1971 | 1 | -- | 0 | 0.780 | 0.265 | 395 | 472 | 0.405 |
1972 | 1 | -- | 0 | 0.795 | 0.977 | 630 | 722 | 0.097 |
1973 | 1 | -- | 0 | 0.809 | 0.557 | 390 | 453 | 0.447 |
1974 | 1 | -- | 0 | 0.823 | 0.447 | 365 | 419 | 0.524 |
1975 | 1 | -- | 0 | 0.838 | 0.599 | 480 | 533 | 0.264 |
1976 | 1 | -- | 0 | 0.852 | 0.830 | 418 | 463 | 0.425 |
1977 | 0 | -- | 230 | 0.867 | 0.448 | 170 | -- | -- |
1978 | 0 | -- | 230 | 0.881 | 0.995 | 429 | -- | -- |
1979 | 0 | -- | 230 | 0.895 | 0.589 | 553 | -- | -- |