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http://hdl.handle.net/2445/45667
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DC Field | Value | Language |
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dc.contributor.author | Atencia, Aitor | - |
dc.contributor.author | Mediero, Luis | - |
dc.contributor.author | Llasat Botija, María del Carmen | - |
dc.contributor.author | Garrote, Luis | - |
dc.date.accessioned | 2013-09-06T07:44:33Z | - |
dc.date.available | 2013-09-06T07:44:33Z | - |
dc.date.issued | 2011 | - |
dc.identifier.issn | 1027-5606 | - |
dc.identifier.uri | http://hdl.handle.net/2445/45667 | - |
dc.description.abstract | The performance of a hydrologic model depends on the rainfall input data, both spatially and temporally. As the spatial distribution of rainfall exerts a great influence on both runoff volumes and peak flows, the use of a distributed hydrologic model can improve the results in the case of convective rainfall in a basin where the storm area is smaller than the basin area. The aim of this study was to perform a sensitivity analysis of the rainfall time resolution on the results of a distributed hydrologic model in a flash-flood prone basin. Within such a catchment, floods are produced by heavy rainfall events with a large convective component. A second objective of the current paper is the proposal of a methodology that improves the radar rainfall estimation at a higher spatial and temporal resolution. Composite radar data from a network of three C-band radars with 6-min temporal and 2 × 2 km2 spatial resolution were used to feed the RIBS distributed hydrological model. A modification of the Window Probability Matching Method (gauge-adjustment method) was applied to four cases of heavy rainfall to improve the observed rainfall sub-estimation by computing new Z/R relationships for both convective and stratiform reflectivities. An advection correction technique based on the cross-correlation between two consecutive images was introduced to obtain several time resolutions from 1 min to 30 min. The RIBS hydrologic model was calibrated using a probabilistic approach based on a multiobjective methodology for each time resolution. A sensitivity analysis of rainfall time resolution was conducted to find the resolution that best represents the hydrological basin behaviour. | - |
dc.format.extent | 19 p. | - |
dc.format.mimetype | application/pdf | - |
dc.language.iso | eng | - |
dc.publisher | European Geosciences Union (EGU) | - |
dc.relation.isformatof | Reproducció del document publicat a: http://dx.doi.org/10.5194/hess-15-3809-2011 | - |
dc.relation.ispartof | Hydrology and Earth System Sciences, 2011, vol. 15, p. 3809-3827 | - |
dc.relation.uri | http://dx.doi.org/10.5194/hess-15-3809-2011 | - |
dc.rights | cc-by (c) Atencia, A. et al., 2011 | - |
dc.rights.uri | http://creativecommons.org/licenses/by/3.0/es | - |
dc.source | Articles publicats en revistes (Física Quàntica i Astrofísica) | - |
dc.subject.classification | Radar | - |
dc.subject.classification | Precipitacions (Meteorologia) | - |
dc.subject.classification | Hidrologia | - |
dc.subject.classification | Inundacions | - |
dc.subject.classification | Previsió del temps | - |
dc.subject.classification | Catalunya | - |
dc.subject.other | Radar | - |
dc.subject.other | Precipitations (Meteorology) | - |
dc.subject.other | Hydrology | - |
dc.subject.other | Floods | - |
dc.subject.other | Weather forecasting | - |
dc.subject.other | Catalonia | - |
dc.title | Effect of radar rainfall time resolution on the predictive capability of a distributed hydrologic model | - |
dc.type | info:eu-repo/semantics/article | - |
dc.type | info:eu-repo/semantics/publishedVersion | - |
dc.identifier.idgrec | 603993 | - |
dc.date.updated | 2013-09-06T07:44:33Z | - |
dc.rights.accessRights | info:eu-repo/semantics/openAccess | - |
Appears in Collections: | Articles publicats en revistes (Física Quàntica i Astrofísica) |
Files in This Item:
File | Description | Size | Format | |
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603993.pdf | 9.61 MB | Adobe PDF | View/Open |
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