An evaluation of observed and unimpaired flow and precipitation during drought events in the ACF basin
Holmbeck-Pelham, Skelly A.
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The Apalachicola-Chattahoochee-Flint (ACF) Basin has experienced three major drought events in the past 50 years. A cumulative deficit evaluation of the drought events shows that the greatest cumulative rainfall deficit occurred during the mid 1950’s event, but the greatest flow deficit occurred during the 1999–2002 drought event. An evaluation of the unimpaired flow set, being used to develop an Allocation Formula for the ACF Basin, indicates that this data set is not consistent with these findings, suggesting further evaluation may be needed to address the adequacy of the dataset as the basis for future policy decisions. Caution should be used in using and in interpreting model results from this time period.