Seibert
Fakultäten » Mathematisch-naturwissenschaftliche Fakultät » Geographisches Institut » Physische Geographie » Prof. Dr. Jan Seibert » Seibert
Current research project
| Title / Titel | Gauging the ungauged catchment: a combination of regionalization and limited streamflow observations | ||
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| Abstract (PDF, 14 KB) | |||
| Summary / Zusammenfassung | The PUB (Prediction in Ungauged Basins) initiative highlights the long-standing issue of streamflow estimation in ungauged basins. Recent studies demonstrated that taking a few streamflow measurements might be useful to constrain runoff models for simulations in ungauged basins. While in these previous studies the modeling started from the assumption of no prior information, in this study the usefulness of taking a few streamflow measurements is explored for the case where some regional information of parameter values exists. For two groups of monitored catchments, one in Sweden and one in Switzerland, a collection of regional parameter sets for a simple catchment model is compiled by selecting behavioral parameter sets from the individual catchments. In a second step then, one catchment at a time is treated as ‘ungauged’ and streamflow for this catchment is estimated based on selected regional parameter sets. This selection is based on model evaluations for different sub-sets of streamflow observations on a few days. In other words these sub-sets consist of a limited number of single runoff measurements and represent data that could be measured with limited efforts in an ungauged basin. Preliminary results indicate that a few runoff measurements, especially if selected with a hydrological reasonable strategy, can contain much of the information content of continuous runoff time series. Compared to the case with no prior information fewer streamflow observations are required to obtain good model simulations | ||
| Publications / Publikationen | Seibert, Jan; Beven, K J (2009). Gauging the ungauged basin: how many discharge measurements are needed? Hydrology and Earth System Sciences, 13(5):883-892. | ||
| Keywords / Suchbegriffe | PUB, ungauged basins, streamflow measurements, runoff time series analysis, Sweden, Switzerland | ||
| Project leadership and contacts / Projektleitung und Kontakte |
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| Funding source(s) / Unterstützt durch |
No project-specific funding |
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| In collaboration with / In Zusammenarbeit mit |
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| Duration of Project / Projektdauer | Jan 2012 to Dec 2013 |