SWAT Literature Database for Peer-Reviewed Journal Articles

Title:Modelling nitrogen pressure in river basins: A comparison between a statistical approach and the physically-based SWAT model 
Authors:Grizzetti, B., F. Bouraoui, and G. De Marsily 
Journal:Physics and Chemistry of the Earth, Parts A/B/C 
Article ID: 
URL (non-DOI journals): 
Broad Application Category:hydrologic & pollutant 
Primary Application Category:model comparison 
Secondary Application Category:pollutant cycling/loss and transport 
Watershed Description:8900 km^2 region covering portions of the Great Ouse, Nene, Welland, and Witham watersheds in England, United Kingdom (calibration watershed was a portion of the 1380 km^2 Great Ouse) 
Calibration Summary:Daily/monthly 1995-99 (at Bedford) E values: streamflow = .75/.86 TON = .24/.32 
Validation Summary:Daily/monthly (1995-99) E values: Roxton: streamflow = .67/ .77 TON = .28/.38 Willen: streamflow = .45/.59 TON = .004/-.06 -------------------------- Annual (1995-99) for whole basin (50 subwatershed outlets): streamflow = .66 TON = .68 
General Comments:Comparisons between SWAT and a statistical method based on the SPARROW approach are reported. The two approaches were found to be similar in statistical realibility and both estimated similar total oxidized nitrogen (TON) loads for the Roxon and Willen monitoring stations. The authors state that the statistical model should be viewed primarily as a screening tool and that SWAT is more useful for scenarios. 
Keywords:Statistical models; Physically-based models; Nitrogen load; Diffuse pollution; SWAT