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| Titel |
River routing at the continental scale: use of globally-available data and an a priori method of parameter estimation |
| VerfasserIn |
P. Naden, P. Broadhurst, N. Tauveron, A. Walker |
| 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 ; 3, no. 1 ; Nr. 3, no. 1, S.109-123 |
| Datensatznummer |
250000759
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| Publikation (Nr.) |
 copernicus.org/hess-3-109-1999.pdf |
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| Zusammenfassung |
| Two applications of a river routing model based on the
observed river network and a linearised solution to the convective-diffusion equation are
presented. One is an off-line application to part of the Amazon basin (catchment area 2.15
M km2) using river network data from the Digital Chart of the World and
GCM-generated runoff at a grid resolution of 2.5 degrees latitude and 3.75 degrees
longitude. The other application is to the Arkansas (409,000 km2) and Red River
(125,500 km2) basins as an integrated component of a macro-scale hydrological
model, driven by observed meteorology and operating on a 17 km grid. This second
application makes use of the US EPA reach data to construct the river network. In both
cases, a method of computing parameter values a priori has been applied and shows
some success, although some interpretation is required to derive `correct' parameter
values and further work is needed to develop guidelines for use of the method. The
applications, however, do demonstrate the possibilities for applying the routing model at
the continental scale, with globally-available data and a priori parameter
estimation, and its value for validating GCM output against observed flows. |
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