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Titel |
Development and application of the modelling system J2000-S for the EU-water framework directive |
VerfasserIn |
M. Fink, P. Krause, S. Kralisch, U. Bende-Michl, W.-A. Flügel |
Medientyp |
Artikel
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Sprache |
Englisch
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ISSN |
1680-7340
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Digitales Dokument |
URL |
Erschienen |
In: Large-scale hydrological modelling and the European Union water policies ; Nr. 11 (2007-06-21), S.123-130 |
Datensatznummer |
250009019
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Publikation (Nr.) |
copernicus.org/adgeo-11-123-2007.pdf |
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Zusammenfassung |
The scientific sound definition of measures to achieve the goals of the EU
water framework directive (WFD) acquires spatially distributed analyses of
the water and substance dynamics in meso- to macro-scale catchments. For this
purpose, modelling tools or systems are needed which are robust and fast
enough to be applied on such scales, but which are also able to simulate the
impact of changes on single fields or small areas of a specific land use in
the catchment.
To face these challenges, we combined the fully-distributed hydrological
model J2000 with the nitrogen transport routines of the Soil Water Assessment
Tool SWAT model, which are normally applied in a semi-distributive approach.
With this combination, we could extend the quantitative focus of J2000 with
qualitative processes and could overcome the semi-distributed limitation of
SWAT. For the implementation and combination of the components, we used the
Jena Adaptable Modelling System JAMS (Kralisch
and Krause, 2006) which helped
tremendously in the relatively rapid and easy development of the new
resultant model J2000-S (J2000-Substance).
The modelling system was applied in the upper Gera watershed, located in
Thuringia, Germany. The catchment has an area of 844 km2 and
includes three of the typical landscape forms of Thuringia. The application
showed, that the new modelling system was able to reproduce the daily
hydrological as well as the nitrogen dynamics with a sufficient quality. The
paper will describe the results of the new model and compare them with the
results obtained with the original semi-distributed application of SWAT. |
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