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A combined catchment‐reservoir water quality model to guide catchment management for reservoir water quality control.

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Bibliographic Details
Title: A combined catchment‐reservoir water quality model to guide catchment management for reservoir water quality control.
Authors: Chen, Chi‐Feng1 (AUTHOR), Chong, Kean‐Yip2 (AUTHOR), Lin, Jen‐Yang2 (AUTHOR) jylin@ntut.edu.tw
Source: Water & Environment Journal. Aug2021, Vol. 35 Issue 3, p1025-1037. 13p.
Subject Terms: *Water quality management, *Water quality, *Water analysis
Geographic Terms: Taiwan
Abstract: In this study, the Hydrological Simulation Programme‐FORTRAN (HSPF) and the Water Quality Analysis Simulation Programme (WASP), were adopted as a combined tool. The long Feitsui impounding reservoir located in Taiwan was used as a case study. The combined model helped illustrate the total phosphorus (TP) mass balance. Approximately 51.4% of the TP flowed out from the reservoir, while 16.2% of the TP remained in the waterbody and 32.2% of the TP was deposited. The reservoir was divided into five sections along its length for a quality analysis. The exceedance probability (the probability of exceeding the eutrophic level, i.e., TP = 24 μg/L) was 9.7% in the upstream section. If the TP load increased by 20%, the eutrophication exceedance probability could increase to 25.5%. This study demonstrated the usage of the combined model tool and the exceedance probability method in the data analysis, which could guide effective catchment management and eutrophication risk prevention. [ABSTRACT FROM AUTHOR]
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Abstract:In this study, the Hydrological Simulation Programme‐FORTRAN (HSPF) and the Water Quality Analysis Simulation Programme (WASP), were adopted as a combined tool. The long Feitsui impounding reservoir located in Taiwan was used as a case study. The combined model helped illustrate the total phosphorus (TP) mass balance. Approximately 51.4% of the TP flowed out from the reservoir, while 16.2% of the TP remained in the waterbody and 32.2% of the TP was deposited. The reservoir was divided into five sections along its length for a quality analysis. The exceedance probability (the probability of exceeding the eutrophic level, i.e., TP = 24 μg/L) was 9.7% in the upstream section. If the TP load increased by 20%, the eutrophication exceedance probability could increase to 25.5%. This study demonstrated the usage of the combined model tool and the exceedance probability method in the data analysis, which could guide effective catchment management and eutrophication risk prevention. [ABSTRACT FROM AUTHOR]
ISSN:17476585
DOI:10.1111/wej.12695