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| Title | Dissolved Oxygen and pH Modeling of a Periphyton Dominated, Nutrient Enriched River. Article in Journal of Environmental Engineering. | |
| Month-Year Published | September 2009 | |
| Online Availability |
not available
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| Short Description |
Nutrient enrichment of the South Umpqua River, Oregon was linked to periphyton growth and large diel fluctuations in dissolved oxygen and pH using the water quality model QUAL2Kw. The model was used to quantify nonpoint source loading, determine the pollutant of concern, estimate natural conditions, and calculate a phosphorus total maximum daily load during summer, low-flow conditions. Control of both nonpoint and point sources is required to achieve the low instream phosphorus concentrations necessary to meet water quality criteria. The journal summary page is at http://scitation.aip.org/getabs/servlet/GetabsServlet?prog=normal&id=JOEEDU000135000008000645000001&idtype=cvips&gifs=yes (Also see abstract below) | |
| Publication Number | 09-03-049 | |
| Author(s) | Turner, D.F. (Oregon Dept. of Envir. Quality), G.J. Pelletier (Wash. Dept. of Ecology), and B. Kasper (Watershed Sciences Inc.) | |
| Print Availability |
Copies available from the journal.
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| Number of pages | ||
| Keywords | dissolved oxygen, model, nutrient, pH, river, water | |
| Related Web Content | Models for Total Maximum Daily Load Studies | |
| Related Publications | Title | Relationship |
| QUAL2Kw - A framework for modeling water quality in streams and rivers using a genetic algorithm for calibration | supporting publication | |
| Application of automated QUAL2Kw for water quality modeling and management in the Bagmati River, Nepal. Article in the journal, Ecological Modelling. | supporting publication | |
| Abstract | Long Description |
Nutrient enrichment of the South Umpqua River, Oregon was linked to periphyton growth and large diel fluctuations in dissolved oxygen and pH using the water quality model QUAL2Kw. The available data provide a good case study for the relatively new water quality model. QUAL2Kw simulates a dynamic diel heat budget and water quality kinetics for a one-dimensional, steady-flow system. The model was used to quantify nonpoint source loading, determine the pollutant of concern, estimate natural conditions, and calculate a phosphorus total maximum daily load during summer, low-flow conditions. Control of both nonpoint and point sources is required to achieve the low instream phosphorus concentrations necessary to meet water quality criteria. To our knowledge, this is the first paper that reports on the application of a model for computing the maximum allowable load necessary to manage the diel variations in pH. |
This page last updated September 16, 2009
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