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Titel |
Radar rainfall estimates in an alpine environment using inverse hydrological modelling |
VerfasserIn |
A. Marx, H. Kunstmann, A. Bárdossy, J. Seltmann |
Medientyp |
Artikel
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Sprache |
Englisch
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ISSN |
1680-7340
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Digitales Dokument |
URL |
Erschienen |
In: Integration of hydrological models on different spatial and temporal scales ; Nr. 9 (2006-09-26), S.25-29 |
Datensatznummer |
250006568
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Publikation (Nr.) |
copernicus.org/adgeo-9-25-2006.pdf |
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Zusammenfassung |
The quality of hydrological modelling is limited due to the restricted
availability of high resolution temporal and spatial input data such as
temperature, global radiation, and precipitation. Radar-based rain
measurements provide good spatial information. On the other hand, using radar
data is accompanied by basic difficulties such as clutter, shielding,
variations of Z/R-relationships, beam-resolution and attenuation. Instead of
accounting for all errors involved separately, a robust Z/R-relationship is
estimated in this study for the short range (up to 40 km distance)
using inverse hydrological modelling for a continuous period of three months
in summer 2001. River gauge measurements from catchment sizes around
100 km2 are used to estimate areal precipitation and finally
Z/R-relationships using a calibrated hydrological model. The study is
performed in the alpine Ammer catchment with very short reaction times of the
river gauges to rainfall events. |
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