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| Titel |
Performance of regional flood simulations in Austrian Danube tributaries |
| VerfasserIn |
Thomas Nester, Georg Pistotnik, Robert Kirnbauer |
| Konferenz |
EGU General Assembly 2010
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| Medientyp |
Artikel
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| Sprache |
Englisch
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| Digitales Dokument |
PDF |
| Erschienen |
In: GRA - Volume 12 (2010) |
| Datensatznummer |
250039898
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| Zusammenfassung |
| The runoff forecasting model for the Danube tributaries in Upper Austria and Lower Austria
has been in operational use since 2006. The model is based on a conceptual semi distributed
water balance model with catchment sizes ranging from 25 to 25.000 km2. Input into the
model are areal precipitation and temperature data based on the INCA-system developed at
the Central Institute for Meteorology and Geodynamics and hourly data from 90Â discharge
gauging stations for the model updating procedure.
A case study on the effects of modifications in the INCA-system on the hydrological
model is presented. The modifications in the meteorological input led to a recalibration of the
hydrological model. Data from 6Â years (2004Â – 2009) were used to recalibrate and validate
the model. A comparison of model results with original and modified meteorological input
data is shown.
Analyses of the results of the hydrological model include the use of statistical measures as
well as an evaluation of peak errors. Snow patterns were evaluated by comparing model
results with MODIS data.
The analyses show that model performance strongly depends on the meteorological input
and also on the hydrological attributes of the catchments. |
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