1998
DOI: 10.2166/wst.1998.0474
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River Water Quality Modelling: II. Problems of the Art

Abstract: The U.S. EPA QUAL2E model is currently the standard for river water quality modelling. While QUAL2E is adequate for the regulatory situation for which it was developed (the U.S. wasteload allocation process), there is a need for a more comprehensive framework for research and teaching. Moreover, QUAL2E and similar models do not address a number of practical problems such as stormwater flow events, nonpoint source pollution, and transient streamflow. Limitations in model formulation affect the ability to close … Show more

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Cited by 43 publications
(34 citation statements)
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“…High water withdrawal for planned uses will result in a lower dilution ratio downstream Parchin outfall than normal conditions (Table 3). For example, the results show that while the river BOD5 is 10.3 mg/l after the Parchin outfall in zero withdrawal, it will reach 11 mg/l and 11.3 mg/l after 1 m 3 /s and 3 m 3 /s withdrawal in June, respectively [2,6]. …”
Section: Resultsmentioning
confidence: 99%
“…High water withdrawal for planned uses will result in a lower dilution ratio downstream Parchin outfall than normal conditions (Table 3). For example, the results show that while the river BOD5 is 10.3 mg/l after the Parchin outfall in zero withdrawal, it will reach 11 mg/l and 11.3 mg/l after 1 m 3 /s and 3 m 3 /s withdrawal in June, respectively [2,6]. …”
Section: Resultsmentioning
confidence: 99%
“…In a first effort, the task group analysed the state of the art of river water quality modelling, its problems, and possible future directions Shanahan et al, 1998;Somlyódy et al, 1998). This paper is the second of a three-part series that gives recommendations for model formulation.…”
Section: Introductionmentioning
confidence: 99%
“…As practice in Europe and elsewhere avoids some misuse by mostly relying upon custom model formulations for each site investigated (see Chapter 14, Hydroinformatics and its Contributions to Hydrology: From Computation to Communication, Volume 1), Table 1 was limited to public domain codes to illustrate the weakness in US water quality modeling practice. Shanahan et al, (1998) notes the lack of standard model development protocols that currently limit European practice in water quality modeling (http://harmoniqua.wau.nl).…”
Section: Science and Artmentioning
confidence: 99%