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Calibration and verification of HSPF model for Tualatin River Basin Water Quality

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dc.creator Tang, Fei
dc.date.accessioned 2007-07-25T21:35:08Z
dc.date.available 2007-07-25T21:35:08Z
dc.date.issued 1993-06
dc.identifier.uri http://hdl.handle.net/1957/6187
dc.description.abstract The Tualatin River Basin is located in the Washington County, Oregon. The river was detected having high chlorophyll a concentration and low dissolved oxygen concentration during summer time, which violated DEQ water quality standards. A mathematical model (HSPF) was used to simulate physical, chemical and biological processes in the basin and to evaluate the effect of the 'best management practice' (BMP) strategy on improving water quality of the basin. Calibration of the model was focused on water temperature, total suspended solids, dissolved oxygen, dissolved ammonia, dissolved nitrate, dissolved phosphate, and chlorophyll a. Comparison against observed data (1990) showed that the model predictions were accurate for most of the constituents. After verification, the model was used to evaluate the strategy of the Best Management Practice (BMP) on the agricultural land at Gales Creek basin, a major sub-basin of the study area. The results showed that the effect of BMP on nutrients loading from land segment is not significant at Gales Creek. en
dc.description.sponsorship Oregon Dept. of Environmental Quality en
dc.format.extent 2917298 bytes
dc.format.mimetype application/pdf
dc.language.iso en_US en
dc.publisher Portland, Oregon : Environmental and Water Resources Engineering, Department of Civil Engineering, Portland State University en
dc.relation.ispartofseries Technical report en
dc.relation.ispartofseries EWR-003-93 en
dc.subject.lcsh Tualatin River Basin en
dc.subject.lcsh Hydrology en
dc.subject.lcsh Water quality en
dc.subject.lcsh Gales Creek en
dc.subject.lcsh Water quality -- Oregon -- Tualatin River -- Mathematical models
dc.subject.lcsh Best management practices (Pollution prevention) -- Oregon -- Tualatin River
dc.title Calibration and verification of HSPF model for Tualatin River Basin Water Quality en
dc.type Technical Report en


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