Abstract

Runoff hydrographs from coastal flatwood watersheds in Southwest Florida have been found to exhibit prolonged recession limbs. Commonly-used hydrologic models with default parameters appear to have difficulty. Simulating these runoff hydrograph shapes. While adjustments to timing parameters seem to be effective in reducing and/or shifting the time of the peak runoff rate, they may not accurately account for the elongated shape of the runoff hydrograph. Stream flow and rainfall data collected by the U S Geological Survey and the Palmer Ranch Developer were used in an attempt to reconcile the SCS Unit Hydrograph model and Runoff Block of EPA’s Stormwater Management Model (SWMM).

This paper is only available in PDF Format:

  View full text PDF