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Analysis of runoff for the Baltic basin with an integrated Atmospheric-Ocean-Hydrology Model
Consulting Engineers Dr.-Ing. Karl Ludwig, Herrenstr. 14, 76133 Karlsruhe, Germany
Abstract. A fully integrated Atmospheric-Ocean-Hydrology Model (BALTIMOS = Baltic Integrated Model System) has been developed using existing model components. Experiment and model design has been adapted to the Baltic basin with a catchment area of approximately 1 750 000 km2. A comprehensive model validation has been completed using large meteorological and hydrological measurement database. Comparing the calculated runoff from the integrated and non-integrated model system with measurements for three different representative subbasins and the entire Baltic basin, the effect of the integrated model is described. The results display a good agreement between measured and calculated runoff. The effect of the integrated model is rather negligible looking at computed mean values: There is no significant difference between mean monthly runoff of the integrated and non-integrated model during the year with the exception of spring. There is a delay of one month with regard to peak runoff for the non-integrated model in spring caused by different interactive processes during the melting period.
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Citation: Richter, K.-G. and Ebel, M.: Analysis of runoff for the Baltic basin with an integrated Atmospheric-Ocean-Hydrology Model, Adv. Geosci., 9, 31-37, 2006. Bibtex EndNote Reference Manager
