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| Titel |
On an improved sub-regional water resources management representation for integration into earth system models |
| VerfasserIn |
N. Voisin, H. Li, D. Ward, M. Huang, M. Wigmosta, L. R. Leung |
| 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 ; 17, no. 9 ; Nr. 17, no. 9 (2013-09-30), S.3605-3622 |
| Datensatznummer |
250085935
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| Publikation (Nr.) |
 copernicus.org/hess-17-3605-2013.pdf |
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| Zusammenfassung |
| Human influence on the hydrologic cycle includes regulation and storage,
consumptive use and overall redistribution of water resources in space and
time. Representing these processes is essential for applications of earth
system models in hydrologic and climate predictions, as well as impact
studies at regional to global scales. Emerging large-scale research
reservoir models use generic operating rules that are flexible for coupling
with earth system models. Those generic operating rules have been successful
in reproducing the overall regulated flow at large basin scales. This study
investigates the uncertainties of the reservoir models from different
implementations of the generic operating rules using the complex
multi-objective Columbia River Regulation System in northwestern United
States as an example to understand their effects on not only regulated flow
but also reservoir storage and fraction of the demand that is met. Numerical
experiments are designed to test new generic operating rules that combine
storage and releases targets for multi-purpose reservoirs and to compare the
use of reservoir usage priorities and predictors (withdrawals vs.
consumptive demands, as well as natural vs. regulated mean flow) for
configuring operating rules. Overall the best performing implementation is
with combined priorities rules (flood control storage targets and irrigation
release targets) set up with mean annual natural flow and mean monthly
withdrawals. The options of not accounting for groundwater withdrawals, or
on the contrary, of assuming that all remaining demand is met through
groundwater extractions, are discussed. |
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