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| Titel |
Evaluation of two precipitation data sets for the Rhine River using streamflow simulations |
| VerfasserIn |
C. S. Photiadou, A. H. Weerts, B. J. J. M. Hurk |
| Medientyp |
Artikel
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| Sprache |
Englisch
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| ISSN |
1027-5606
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| Digitales Dokument |
URL |
| Erschienen |
In: Hydrology and Earth System Sciences ; 15, no. 11 ; Nr. 15, no. 11 (2011-11-08), S.3355-3366 |
| Datensatznummer |
250013018
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| Publikation (Nr.) |
 copernicus.org/hess-15-3355-2011.pdf |
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| Zusammenfassung |
| This paper presents an extended version of a widely used precipitation data
set and evaluates it along with a recently released precipitation data set,
using streamflow simulations. First, the existing precipitation data set
issued by the Commission for the Hydrology of the Rhine basin (CHR),
originally covering the period 1961–1995, was extended until 2008 using a
number of additional precipitation data sets. Next, the extended version of
the CHR, together with E-OBS Version 4 (ECA & D gridded data set) were
evaluated for their performance in the Rhine basin for extreme events.
Finally, the two aforementioned precipitation data sets and a meteorological
reanalysis data set were used to force a hydrological model, evaluating the
influence of different precipitation forcings on the annual mean and extreme
discharges compared to observational discharges for the period from 1990
until 2008. The extended version of CHR showed good agreement in terms of
mean annual cycle, extreme discharge (both high and low flows), and spatial
distribution of correlations with observed discharge. E-OBS performed well
with respect to extreme discharge. However, its performance of the mean
annual cycle in winter was rather poor and remarkably well in the summer.
Also, CHR08 outperformed E-OBS in terms of temporal correlations in most of
the analyzed sub-catchment means. The length extension for the CHR and the
even longer length of E-OBS permit the assessment of extreme discharge and
precipitation values with lower uncertainty for longer return periods. This
assessment classifies both of the presented precipitation data sets as
possible reference data sets for future studies in hydrological applications. |
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