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Comparison of four models simulating phosphorus dynamics in Lake Vanern, Sweden
SMHI, Research Department, Hydrology.ORCID iD: 00-0002-4563-2752
2004 (English)In: Hydrology and Earth System Sciences, ISSN 1027-5606, E-ISSN 1607-7938, Vol. 8, no 6, 1153-1163 p.Article in journal (Refereed) Published
Abstract [en]

This paper compares four water quality models applied to Lake Vanern, Sweden. The comparison is focused on phosphorus, the primary limiting nutrient in Lake Vanern. Two of the models, FYRISA and HBV-NP, are simple and were developed as parts of catchment models. Two other models, called LEEDS and MOM are more comprehensive lake models. The models were calibrated using data from the period 1985-1992 and validated using data from the period 1993-2000. The fit to calibration data is similar for the FYRISA, HBV-NP, and LEEDS models, and slightly worse for the BIOLA model. All models fit the validation data almost as well as the calibration data. The models behaviour was tested in two representative scenarios. An increase of emissions by 40% from a pulp and paper mill has a negligible effect on the water quality, while a decrease in phosphorus load by 14% (accomplished by better waste-water treatment in rural households) gives a considerable decrease in phosphorus concentration in the lake. Still, the results of the scenarios vary between the models.

Place, publisher, year, edition, pages
2004. Vol. 8, no 6, 1153-1163 p.
Keyword [en]
lake, phosphorus, model, scenarios, simulation
National Category
Oceanography, Hydrology, Water Resources
Research subject
Hydrology
Identifiers
URN: urn:nbn:se:smhi:diva-1295ISI: 000229769300013OAI: oai:DiVA.org:smhi-1295DiVA: diva2:818648
Available from: 2015-06-09 Created: 2015-05-26 Last updated: 2016-05-25Bibliographically approved

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