Mass Balance and Water Quality Modeling for Load Allocation of Escherichia coli in an Urban Watershed
| Autor: | Hanadi S. Rifai, Ron Stein, Anuradha M. Desai, Tina Petersen |
|---|---|
| Rok vydání: | 2011 |
| Předmět: |
HSPF
Watershed Hydrological modelling Geography Planning and Development Environmental engineering Management Monitoring Policy and Law Surface-water hydrology Water balance Environmental science Water quality Water resource management Surface runoff Nonpoint source pollution Water Science and Technology Civil and Structural Engineering |
| Zdroj: | Journal of Water Resources Planning and Management. 137:412-427 |
| ISSN: | 1943-5452 0733-9496 |
| DOI: | 10.1061/(asce)wr.1943-5452.0000129 |
| Popis: | A modeling approach based on mass balance coupled with the Hydrologic Simulation Program in FORTRAN (HSPF) is developed in this study to evaluate bacteria reduction strategies and their impact on water quality for an urban watershed in Texas. This approach allowed for spatial and temporal representation of bacteria loading from the adjacent watershed that was balanced with in-stream loading. This decreased the uncertainty in source loading estimates and reduced the number of variables requiring calibration. The resulting model is used to investigate whether reduction goals calculated by using the mass balance data alone would actually achieve water quality standards. Results indicate that 100% elimination of runoff loads would be required to achieve the applicable standards, which is a somewhat unrealistic and costly endeavor. The utility of the developed model is further demonstrated by investigating spatial reduction strategies targeting the various bacteria sources in the watershed. Results indicate th... |
| Databáze: | OpenAIRE |
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