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Estimating catchment nutrient flow with the HBV-NP model: Sensitivity to input data
SMHI, Core Services.ORCID iD: 0000-0001-7490-7949
SMHI, Research Department, Hydrology.
SMHI, Research Department, Hydrology.ORCID iD: 00-0002-4563-2752
SMHI, Research Department, Hydrology.ORCID iD: 0000-0002-1986-8374
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2005 (English)In: Ambio, ISSN 0044-7447, E-ISSN 1654-7209, Vol. 34, no 7, 521-532 p.Article in journal (Refereed) Published
Abstract [en]

The dynamic catchment model HBV-N has been further developed by adding routines for phosphorus transport and is now called the HBV-NP model. The model was shown to satisfactorily simulate nutrient dynamics in the Ronnea catchment (1 900 km(2)). Its sensitivity to input data was tested, and results demonstrated the increased sensitivity to the selection of input data on a subcatchment scale when compared with the catchment scale. Selection of soil and land use databases was found to be critical in some subcatchments but did not have a significant impact on a catchment scale. Although acceptable on a catchment scale, using templates and generalization, with regards to emissions from point sources and rural households, significantly decreased model performance in certain subcatchments when compared with using more detailed local information. A division into 64 subcatchments resulted in similar model performance at the catchment outlet when compared with a lumped approach. Adjusting the imported matrixes of the regional leaching of nitrogen, from agricultural land, against mean subcatchment water percolation did not have a significant impact on the model performance.

Place, publisher, year, edition, pages
2005. Vol. 34, no 7, 521-532 p.
National Category
Oceanography, Hydrology, Water Resources
Research subject
Hydrology
Identifiers
URN: urn:nbn:se:smhi:diva-1256DOI: 10.1639/0044-7447(2005)034[0521:ECNFWT]2.0.CO;2ISI: 000233522100007PubMedID: 16435741OAI: oai:DiVA.org:smhi-1256DiVA: diva2:843487
Available from: 2015-07-29 Created: 2015-05-26 Last updated: 2016-12-20Bibliographically approved

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Andersson, LottaRosberg, JörgenPers, CharlottaOlsson, JonasArheimer, Berit
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